nav[aria-label="Primary Navigation"] { padding: 0; & ul { list-style: none; width: 100%; display: flex; flex-direction: row; justify-content: start; align-items: start; gap: 30px; padding: 0; & li { margin: 0; } & ul li { list-style: none; } } }

Child Item

Unable to access certain websites even after changing BB provider

DBCR

Hope someone can help with this as head is melted at this stage...

Have a office with a few PCs and VoIP phones. Eir Business Broadband with Fibre modem feeding into a switch, no seperate firewall or anything fancy. Everything working fine for a long time until about two months ago it became difficult to access certain websites, prime example is Ryanair.com which would only partly load 90% of the time. Google and other certain websites will always be fine.

Only strange thing we could see was when you typed in "What is my ip address" into Google it came back with an IPV6 address. Replaced the Fiber modem with a new one and nothing connected to it except my phone by wifi and same problem, turn off wifi and use 3g and phone able to access same sites fine. This to my mind should rule out anything internal causing the problem? Do not have a static IP address so have left the modem off overnight to make sure it would pick up new public IP address but still same problems.

Eir support were an absolute nightmare and spent 6 weeks on the phone to them getting absolutely nowhere (Except they made some change so that now public IP address comes back as an IPV4 address). They did send out a technician who verified everything was fine as far as cabling internally and between the building and the exchange and confirmed the issue using his own phone and said it was a network issue that would need to be escalated but he didn't hold out much hope for us!!

Only solution we thought was change provider so we changed to Vodafone business broadband. Unbelievably the exact same problem still exists and Vodafone aren't much more help than Eir were even though we stumped for an SLA with them

Since this started I have seen a house (Eir Fibre) locally with the exact same problem and are getting an IPV6 address when they check their IP address. They are light users and are just suffering it because they couldn't face calling Eir.

If anyone has any ideas on what could be causing this or any idea how to resolve it any input would be greatly appreciated ;-))

Find more posts tagged with

Quick Links

Comments

9726_9726

Ouch - doesn't appear to be a DNS issue if it loaded even some of the time.

Are we taking pages kinda sorta half loading, with broken images, no style sheet (colours), wonky text?

If so, could be an MTU issue. Large packets failing. Certain tests could be done..... But I'd advise connecting a single PC by cable to the modem.

First, I'd be looking for packet loss. Set up a command prompt, type

ping -t 8.8.8.8 -l 1400

Hit enter, let it run for 20 mins, hit ctrl-c. See if lost packets is 0%. If any more, report here.

Second, do

ping -l 1500

and see if you get 4 successful replies

Third, do

ping -l 1460 -f

See if it complains that it wants to fragment, but can't.

Increase the 1460 and repeat and report here the lowest number it failed at.

DBCR

9726_9726 wrote: »

Ouch - doesn't appear to be a DNS issue if it loaded even some of the time.

Are we taking pages kinda sorta half loading, with broken images, no style sheet (colours), wonky text?

If so, could be an MTU issue. Large packets failing. Certain tests could be done..... But I'd advise connecting a single PC by cable to the modem.

First, I'd be looking for packet loss. Set up a command prompt, type

ping -t 8.8.8.8 -l 1400

Hit enter, let it run for 20 mins, hit ctrl-c. See if lost packets is 0%. If any more, report here.

Second, do

ping -l 1500

and see if you get 4 successful replies

Third, do

ping -l 1460 -f

See if it complains that it wants to fragment, but can't.

Increase the 1460 and repeat and report here the lowest number it failed at.

Thank you so much for the reply.
Actually don’t get broken images/css or dodgy text... Pages will partly load but chrome/IE/Safari will keep spinning their wheels for parts of them and might or might not eventually show the full page after a few minutes. It doesn’t seem to time out like one would expect.
Have tried a single pc connected by cable to the modem and get the same results. Have also tried using 8.8.8.8 as DNS directly on the PCs and also in the modem but no change.
I’ll get in there in the morning and connect a single PC to the modem and try the tests you suggest and report back the results.
Thank you so much for the help as this is way above me!!

tsue921i8wljb3

You could try disabling IPv6. This guide is for the eir F2000 but I believe the Vodafone router is similar.

https://editorsean.com/articles/fix-slow-eir-f2000-wi-fi/#disable_ipv6

There's a guide to undo changes further down if it doesn't work.

DBCR

Kelvin Prickly Coal wrote: »

You could try disabling IPv6. This guide is for the eir F2000 but I believe the Vodafone router is similar

There's a guide to undo changes further down if it doesn't work.

Thanks - It’s one of the first things I tried but no difference. Might be no harm to try again now with Vodafone so I’ll do that in the morning, thank you very much for the suggestion!

testicles

This post has been deleted.

DBCR

testicles wrote: »

What is the ipv6 address that it returns?

I don't believe the issue lies with your ISP.

It was only initially when the problem arose that we were getting the IPV6 address, Eir made some change after numerous support calls and then we got an IPV4 address again. Getting IPV4 public IP address returned too since we changed to Vodafone....

tsue921i8wljb3

Is it a managed switch that you have installed or simply a dumb plug and play version?

If managed is there anything in it's web interface, assuming it has one, that could be causing a conflict?

You need to rule out as many factors as possible. Would you be able to connect one machine directly to the router and unplug everything else to see if the issue persists? I know it's an office but if you get hold of a long ethernet cable or do it after hours it may be possible.

If it does happen with the only one machine connected to the router you could post a screenshot of the output of ipconfig /all from a command prompt and a screenshot of the router's LAN Interface page (under Home Network in the eir router, I don't know if Vodafone is the same) with LAN Interface Settings and DHCP Server sections expanded.

We might be able to spot something wrong there.

DBCR

Kelvin Prickly Coal wrote: »

Is it a managed switch that you have installed or simply a dumb plug and play version?

If managed is there anything in it's web interface, assuming it has one, that could be causing a conflict?

You need to rule out as many factors as possible. Would you be able to connect one machine directly to the router and unplug everything else to see if the issue persists? I know it's an office but if you get hold of a long ethernet cable or do it after hours it may be possible.

If it does happen with the only one machine connected to the router you could post a screenshot of the output of ipconfig /all from a command prompt and a screenshot of the router's LAN Interface page (under Home Network in the eir router, I don't know if Vodafone is the same) with LAN Interface Settings and DHCP Server sections expanded.

We might be able to spot something wrong there.

Thank you Navi but Switch is just an unmanaged one. Have tried to rule out everything locally sand have the same problem with everything in the office excluded - Tried new modem with nothing connected to LAN ports and just iPhone connected by WiFi, same modem reset and WiFi turned off and only a single PC connected directly by cable to lan port. And now new ISP, new Modem, one PC connected by cable, same result.
It’s nuts.... I’ll post those screen shots when I get in there in the morning.
Thanks again for the help!

DBCR

9726_9726 wrote: »

Ouch - doesn't appear to be a DNS issue if it loaded even some of the time.

Are we taking pages kinda sorta half loading, with broken images, no style sheet (colours), wonky text?

If so, could be an MTU issue. Large packets failing. Certain tests could be done..... But I'd advise connecting a single PC by cable to the modem.

First, I'd be looking for packet loss. Set up a command prompt, type

ping -t 8.8.8.8 -l 1400

Hit enter, let it run for 20 mins, hit ctrl-c. See if lost packets is 0%. If any more, report here.

Second, do

ping -l 1500

and see if you get 4 successful replies

Third, do

ping -l 1460 -f

See if it complains that it wants to fragment, but can't.

Increase the 1460 and repeat and report here the lowest number it failed at.

Before running these tests I disconnected everything from the modem, restarted it and then just connected my laptop directly with a cable. I checked in the modem and Vodafone support have IPV6 turned off and have it set to use Google DNS.

ping -t 8.8.8.8 -l 1400 ran for over 20 minutes with 0% loss

ping 8.8.8.8 -l 1500 gave 4 successful replies

The lowest number ping 8.8.8.8 -l 1460 -f failed at was 1465

At the same time I tried to open Ryanair.com and it just sat spinning for 10+ minutes.

DBCR

Kelvin Prickly Coal wrote: »

If it does happen with the only one machine connected to the router you could post a screenshot of the output of ipconfig /all from a command prompt and a screenshot of the router's LAN Interface page (under Home Network in the eir router, I don't know if Vodafone is the same) with LAN Interface Settings and DHCP Server sections expanded.

We might be able to spot something wrong there.

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\Damo>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Damo-Lpt
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Broadcast
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : home

Wireless LAN adapter Wireless Network Connection 4:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter #
2
Physical Address. . . . . . . . . : A2-A8-CD-55-AE-xx
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wireless Network Connection 3:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : home
Description . . . . . . . . . . . : Intel(R) Dual Band Wireless-N 7260
Physical Address. . . . . . . . . : A0-A8-CD-55-AE-xx
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Local Area Connection 3:

Connection-specific DNS Suffix . : home
Description . . . . . . . . . . . : Intel(R) Ethernet Connection I218-LM
Physical Address. . . . . . . . . : 64-51-06-9E-15-xx
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : xxxx::d587:8baf:f0a7:bf24%20(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.2(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : 15 June 2018 11:59:13
Lease Expires . . . . . . . . . . : 16 June 2018 11:59:13
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 426004742
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1D-93-FA-75-F0-76-1C-17-0E-xx

DNS Servers . . . . . . . . . . . : 192.168.1.1
192.168.1.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.home:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : home
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter 6TO4 Adapter:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{2AAB9157-05D6-43E0-A827-A8D7D6CFBF72}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #4
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

MODEM LAN SETTINGS:
LAN Interface
Your computer connects to a LAN interface to access the Internet. You can adjust the interface parameters according to LAN IP address allocation.

LAN Interface Status

LAN1:
Disconnected
LAN2:
Disconnected
LAN3:
Connected Full 1000Mbps
LAN4:
Disconnected
MAC address:
E4:FB:5D:2B:xx:xx
IP address:
192.168.1.1

LAN Interface Settings

What's this?

IP address: 192.168.1.1
. . .
Subnet mask: 255.255.255.0
. . .
Device name:Vodafone.Router

Access the router from: Vodafone.Router.home
Save

DHCP Server

DHCP server:

Start IP address: 192.168.1.2
. . .
End IP address: 192.168.1.254
. . .
DNS mode:
CPE acts as the DNS proxy Ticked
Manually configure the DNS server for LAN devices Unticked
Lease duration: 1 Day

WAN-side address allocation mode: Normal

DHCP Option Pool

DHCP Option pool:

Start IP address: 192.168.1.240
. . .
End IP address: 192.168.1.254
. . .

DHCP Reservation

________________________________________

Create new static address

IPv6 Router Advertisement Settings

Enable IPv6 Router Advertisement: Unticked

IPv6 DHCP Server

IPv6 DHCP server: Unticked

UPnP

Enable UPnP: Ticked

MODEM INTERNET SETTINGS:

Internet Settings
You can view the connection status of your home gateway, the HG659.

Internet_adsl

Access type:
DSL
IPv4 status:
Disconnected
Edit Restart PPPoE
Basic Information
Enable connection: Ticked

Name: Internet_adsl

Service type:
INTERNET Ticked TR069 Ticked VOICE Ticked Other Unticked
Connection type: IP routing (PPP)

MRU: 1492

MSS: 0

NAT type: NAPT

Link Information
DSL Mode: ALL

VPI/VCI: 8/35
/
Link mode: EoA

Service type: UBR without PCR

Encapsulation mode: LLC

Enable VLAN: Unticked

PPP Information
PPP authentication mode: Auto

PPP trigger mode:
Always online Ticked
Dial manually Unticked
Dial on demand Unticked
Internet account: vodafone@vodafone.ie

Internet password: *******

PPP service name: blank

IP Information
IP protocol version:IPv4

Static DNS: unticked

Cancel Save

Internet_vdsl

Access type:
VDSL
IPv4 status:
Connected
IPv4 address:
109.78.xx.xx
IPv4 primary DNS server:
8.8.8.8
IPv4 secondary DNS server:
8.8.4.4
PPPoE AC-Name:
w_ctw_lns02
Edit Restart PPPoE

IPTV_vdsl

Access type:
VDSL
IPv4 status:
Disconnected
Edit

Internet_ethernet

Access type:
Ethernet
IPv4 status:
Disconnected
Edit Restart PPPoE

IPTV_ethernet

Access type:
Ethernet
IPv4 status:
Disconnected
Edit

3G/4G

Access type:
3G/4G
IPv4 status:
Disconnected
Edit Restart PPPoE

Hope this shows something, thank you!

tsue921i8wljb3

Nothing immediately jumps out as being wrong there I'm afraid.

When ryanair.com is not opening what are the results of:

ping ryanair.com

tracert ryanair.com

ping 62.73.129.158

tracert 62.73.129.158

DBCR

Kelvin Prickly Coal wrote: »

Nothing immediately jumps out as being wrong there I'm afraid.

When ryanair.com is not opening what are the results of:

ping ryanair.com

tracert ryanair.com

ping 62.73.129.158

tracert 62.73.129.158

Thanks Navi...

C:\Users\Reception2>ping ryanair.com

Pinging ryanair.com [216.146.46.10] with 32 bytes of data:
Reply from 216.146.46.10: bytes=32 time=93ms TTL=52
Reply from 216.146.46.10: bytes=32 time=93ms TTL=52
Reply from 216.146.46.10: bytes=32 time=93ms TTL=52
Reply from 216.146.46.10: bytes=32 time=93ms TTL=52

Ping statistics for 216.146.46.10:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 93ms, Maximum = 93ms, Average = 93ms

C:\Users\Reception2>tracert ryanair.com

Tracing route to ryanair.com [216.146.46.10]
over a maximum of 30 hops:

1 1 ms <1 ms <1 ms 192.168.1.1
2 10 ms 10 ms 10 ms 89.19.64.130
3 12 ms 10 ms 11 ms 89.19.68.234
4 10 ms 16 ms 21 ms ae3-111-ucr1.dub.cw.net [195.2.27.21]
5 12 ms 11 ms 11 ms ae5-xcr1.duc.cw.net [195.2.21.1]
6 20 ms 20 ms 20 ms ae18-xcr1.hex.cw.net [195.2.8.94]
7 20 ms 20 ms 20 ms ldn-b4-link.telia.net [62.115.61.190]
8 93 ms 93 ms 94 ms ldn-bb4-link.telia.net [62.115.134.138]
9 93 ms 93 ms 93 ms ash-bb4-link.telia.net [62.115.122.61]
10 95 ms 95 ms 96 ms ash-b1-link.telia.net [213.155.136.39]
11 94 ms 94 ms 94 ms dnsnet-ic-309253-ash-b1.c.telia.net [80.239.132.
198]
12 93 ms 93 ms 93 ms redirector1.dynect.net [216.146.46.10]

Trace complete.

C:\Users\Reception2>ping 62.73.129.158

Pinging 62.73.129.158 with 32 bytes of data:
Reply from 62.73.129.158: bytes=32 time=26ms TTL=241
Reply from 62.73.129.158: bytes=32 time=26ms TTL=241
Reply from 62.73.129.158: bytes=32 time=25ms TTL=241
Reply from 62.73.129.158: bytes=32 time=26ms TTL=241

Ping statistics for 62.73.129.158:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 25ms, Maximum = 26ms, Average = 25ms

C:\Users\Reception2>tracert 62.73.129.158

Tracing route to 62.73.129.158 over a maximum of 30 hops

1 1 ms <1 ms <1 ms 192.168.1.1
2 10 ms 10 ms 10 ms 89.19.64.130
3 11 ms 11 ms 11 ms 89.19.68.238
4 11 ms 11 ms 11 ms ae6-111-xcr1.duc.cw.net [195.2.7.129]
5 20 ms 20 ms 20 ms ae18-xcr1.hex.cw.net [195.2.8.94]
6 * * 21 ms lag-10.ear1.London1.Level3.net [4.68.72.93]
7 20 ms 20 ms 20 ms ae-11-vl-3101.edge3.London2.Level3.net [4.69.202
.170]
8 24 ms 24 ms 24 ms SUNGARD-AVA.edge3.London2.Level3.net [195.50.125
.182]
9 25 ms 25 ms 25 ms houir3-xe-2-1-1-0.sgns.net [185.50.160.10]
10 25 ms 25 ms 24 ms 37.244.80.169
11 25 ms 25 ms 25 ms 62.73.129.195
12 25 ms 25 ms 25 ms 62.73.129.158

Trace complete.

tsue921i8wljb3

If you open an incognito window in Chrome and paste and go to 62.73.129.158 (click Advanced then Proceed to 62.73.129.158 (unsafe)) does the Ryanair site load consistently?

Perhaps try running DNSQuerySniffer while attempting to load sites that are giving issues?

https://www.nirsoft.net/utils/dns_query_sniffer.html

DBCR

Kelvin Prickly Coal wrote: »

If you open an incognito window in Chrome and paste and go to 62.73.129.158 (click Advanced then Proceed to 62.73.129.158 (unsafe)) does the Ryanair site load consistently?

Perhaps try running DNSQuerySniffer while attempting to load sites that are giving issues?

https://www.nirsoft.net/utils/dns_query_sniffer.html

Incognito windows going to 62.72.129.158 gave exact same result, ie. site doesn't load properly.

I ran DNSQuerySniffer while trying to load Ryanair.com and the results I got are attached.

Thanks again Navi!

tsue921i8wljb3

DBCR wrote: »

Incognito windows going to 62.72.129.158 gave exact same result, ie. site doesn't load properly.

I ran DNSQuerySniffer while trying to load Ryanair.com and the results I got are attached.

Thanks again Navi!

What other sites give you issues? I'll try to see if there is any common denominator between them.

DBCR

Kelvin Prickly Coal wrote: »

What other sites give you issues? I'll try to see if there is any common denominator between them.

Appreciate that - I'll ask the question and find out for definite what other sites tomorrow, I know there are a good few. Ryan Air has always been my test one, other one I know of for sure is speedtest.net - Will load that site fine but takes at least a few minutes before it runs a test once you click 'Go', just sits on "finding optimal server".
I'll reply back with the list of sites as soon as I get them, thanks again ;-)

DBCR

Other sites that often won’t load or take ages to load are Landdirect.ie, Cro.ie and AIB online banking.

tsue921i8wljb3

DBCR wrote: »

Other sites that often won’t load or take ages to load are Landdirect.ie, Cro.ie and AIB online banking.

Both cro and landdirect are on gov.ie ip ranges. My guess is you have some sort of routing issue. Have you tried a VPN on any of the machines or on your phone, something like TunnelBear that gives you a limited amount of free data per month, to see if the issue persists?

As for getting it fixed as the technician said to you it may not be easy. I suppose all you can do is gather as much evidence of addresses and IPs that are causing issues and hound support. Perhaps post on the Talk To forum here and if others are having issues it may raise the visibility. The more people that are affected the more likely they are to do something about it.

I don't suppose Virgin or SIRO are available to you? If they are I'd move immediately.

degsie

To rule out windoze, try to load a 'live' linux distro and see if you have the same issue.

byte

degsie wrote: »

To rule out windoze, try to load a 'live' linux distro and see if you have the same issue.

He's having the same issue on his mobile phone too though.

Gadgetman496

If he has tried two different providers and routers, the only common denominator is his line to the office?

Is the office part of a complex that might have some switches elsewhere or is it a direct line into your office?

Gadgetman496

If it's a direct line to the office and he seems to be actually reaching the problematic sites but they fail to load correctly, could it be a cloudflare or script on those sites that's causing the issue?

tsue921i8wljb3

Gadgetman496 wrote: »

If it's a direct line to the office and he seems to be actually reaching the problematic sites but they fail to load correctly, could it be a cloudflare or script on those sites that's causing the issue?

It's not just a matter of reaching the site. The Ryanair site when fully loaded has caused my browser to make 35 separate DNS queries returning a disparate range of IPs any one of which may be causing the site not to load.

I did originally suspect something like Cloudflare but as far as I can see neither cro nor landdirect are using such services. It's very strange.

Gadgetman496

I had an issue with UPC shortly before they became Virgin whereby I could not connect to the following sites,

ESTA USA

https://esta.cbp.dhs.gov/esta/

IPPHA (Irish Powered Paragliding and Hanggliding Association)

http://www.paramotoring.ie/

AWeber Email Marketing USA

http://www.aweber.com/

I got little or no help when I contacted them directly but after contacting them via "Talkto" on Boards I got a guy who genuinely took an interest in my issue and eventually sorted it for me. It did take some time to nail down and there was a lot of testing such as ping and tracerouts etc.

Never did get a definitive reason as to why exactly I was being blocked but the traceroute was getting blocked at a hop on the UPC end in Copenhagen.

A really frustrating issue for the OP to have.

I wonder if the OP assigned Google DNS straight away when he switched providers or has he tried the problematic sites using the new providers own DNS numbers?

derek214

Hi DBCR
Is there any option to disable the firewall running on the ISP router (just for testing)

Also, have you run a packet capture (wireshark) on a host while accessing ryanair.com?
(I would run this while directly connected to the LAN port of the ISP router)
If in the packet capture are you seeing a whole bunch of retransmission requests it is an indication of packet loss.

I, like a previous poster first thought of an MTU issue but is could equally be a TCP sequencing issue if there is a firewall ruining on the router?

Not sure how sophisticated the built in firewall is on these routers but some will drop packets that are too far out of sequence. For example if I receive packet 75, 77, 74, 78, 79, 76, 80 and then 60. Packet 60 will be dropped because it is too far out of sequence.

Out of sequence packets are not uncommon on the internet, hence the world of TCP but if there are a large amount it could be an issue, and an indication of something going on upstream from your router. At the very least, a packet capture will give you something to go back to your ISP with as you are directly connected to their equipment.

Hope you get sorted,
Derek

DBCR

Thank you very much for the helpful replies - Have tried with both the provider's DNS and also Google's even after changing provider. Really starting to think it must somehow be the line... I will try it with the firewall off in the modem (Something that has not been tried before), great thinking. And I will also run Wireshark and see what happens when trying to load Ryanair, etc.
There is another (unused) line into the building so we are considering getting that connected and ordering broadband for it, might be our only solution but will be messy with contract on existing line.

derek214

I wouldn't be in a hurry to jump to a new line, especially if you have a business account and an SLA - I'd be removing all 3rd party equipment and troubleshooting on ISP provided equipment while escalating it with them.
They cannot say it's your switch if it's been removed from the equation. They will first probably replace the router which will not fix the issue and after that be forced to look into it at a higher level. Get a ticket/case number from them and ensure it remains open, in parallel, if you have an account manager for your business account escalate with them also..
my 2 cents....

Panrich

I had this a few years ago when I changed broadband suppliers and it was resolved by changing mtu settings. From recollection, I changed to a smaller value and hey presto, problem solved.

DBCR

derek214 wrote: »

I wouldn't be in a hurry to jump to a new line, especially if you have a business account and an SLA - I'd be removing all 3rd party equipment and troubleshooting on ISP provided equipment while escalating it with them.
They cannot say it's your switch if it's been removed from the equation. They will first probably replace the router which will not fix the issue and after that be forced to look into it at a higher level. Get a ticket/case number from them and ensure it remains open, in parallel, if you have an account manager for your business account escalate with them also..
my 2 cents....

Unfortunately the quality of tech support and customer service in both Eir and Vodafone has been awful. Getting them to look into it at their own level is hard enough let alone having them escalate it to a higher level which we have tried on numerous occasions and has been absolutely impossible. They just want you off the phone as soon as possible... Vodafone SLA is unfortunately worth SFA :mad:

tsue921i8wljb3

DBCR wrote: »

Unfortunately the quality of tech support and customer service in both Eir and Vodafone has been awful. Getting them to look into it at their own level is hard enough let alone having them escalate it to a higher level which we have tried on numerous occasions and has been absolutely impossible. They just want you off the phone as soon as possible... Vodafone SLA is unfortunately worth SFA :mad:

Are any of Virgin, SIRO, Openeir FTTH available to you?