Configure TP-Link Deco device as a Wi-Fi Router on Eir FTTH (F3000)

this is a late bump but having the same issue.

Tried four separate Deco M5s but no luck.

Using PPPOE

eir@eir.ie / broadband1

VLAN ID =10 / Priority =0

I get a solid red light on the Deco.

Any ideas 🤯

Will Dynamic IP work if I connect straight to the Fibre ONT box? I thought it would at least need the PPPOE settings?

Hi There, So we recently had NBI installed in the area and made the move from Imagine Satellite BB to Eir Fibre.
Have been using the Deco E4 1200 successfully with Imagine but since Eir is in it has been intermittant solid red lights and no internet.(I can reboof and turn off and on and issue will work for a while before going again. Wifi is fine when connected to the eir modem but the range is really poor so the problem the deco was solving is no longer working. I've been through every trouble shoot and was on with TPLink today and they basically said the issue must be the modem becasue the Deco did work (which it will, for 15 mins or an hour, before dropping off).

Thats a long way of asking will a direct connection to the box on the wall (the ONT?) help my issue?

If you're read this far - I commend you!

I'd replace the Deco units with something that has 1GB or higher ports so that you'd have higher speeds on wifi

Just to chime in here. I recently got a pair of XE75 Deco Mesh units and successfully configured them with Eirs FTTH. Fully configured, getting IPV4 and IPV6 running in tandem, without the use of Eirs router.

I am connecting the first deco directly to the ONT and then connecting the second one via wired backhaul.

These are the exact steps I took.

Make sure your Eir Router is plugged in and you connect to its web browsers login page. This is done by going onto your pc or phone and typing in 192.168.1.254 in URL searchbar. Log in using your original WiFi password on the back of the box. The username is admin.

Once logged in, you will be looking for two main things "WAN Mac Address" (very important and needed for the deco setup) and go to IPV6 and get the IPV6 primary and secondary DNS. Write these three things down.

Now, turn of the ONT by the wall socket (or unplug it if your socket doesn't have switches) and plug out the eir Router, you are done with that completely. 

Wait 5 minutes, plug in /switch on the ONT. 

Plug your deco in to the wall and start the setup. 

First select "I don't have a modem" if that comes up as you will be running it straight to the ONT. 

It should ask you to plug in the wan cable. Plug the wan cable from the ONT to the deco and it may ask to restart the ONT in the setup guide. Do whatever it says for that.

The next step should be choosing Dynamic IP or PPPOE etc. 

Very important for fiber to the home users. 

(Also, you can enable/set up IPV6 separately after if you wish , same as I did)

Select

Dynamic IP

DNS address Auto

Enable IPTV/VLAN

Set ISP Profile to "Custom" 

Set VLAN ID to 10

Set priority to 0

Disable IPTV VLAN (or just make sure it's not enabled). If any issues arises where you can't uncheck this, just set it up and then disable it after, but it should just let you. 

Most important thing. Enable "Mac Clone" and input the WAN mac address you wrote down when logged into the previous Eir Router. 

This clones the previous routers Mac address and gives the green light for the internet to come through every time. Without this sometimes if you reboot or change certain settings , it can't get back on the internet. This  Mac cloning will essentially turn the new tp link router into an eir verified/authorised router in terms of recieving internet. 

Now onto IPV6. By far the trickiest to get set up. 

Remember this rule of thumb also, whenever you change the IPV6 type etc, you have to reboot your modem for it to take effect. So if you are trying different methods/types and wondering why none of them are working , it might just be because you never rebooted. 

How I got it to work for Eir specifically: For IPV6 , enable it firstly if it's not. Then:

Set Dynamic IP

Set "Non Address" for "Get IPV6 address" 

Enable Prefix Delegation 

Here's a tricky bit. You can set the DNS to auto or alternatively, type in the two IPV6 DNS you took down when you were logged into the eir Router. 

I personally chose auto, and it auto filled in with the same DNS options anyway, however they randomly disappeared ( they were showing at first, but IPV6 still works regardless ). I may just put them in manually and would probably recommend doing/trying that however I'm just stating exactly what I did to get it to work.

Last part is choose "SLAAC + Stateless DHCP" as the Assigned type.

After this reboot your router (either from the app or the wall) and it should work when it boots back up. 

I really hope this helps anyone that's trying to set these up. I hope it works, I know how frustrating it can be messing with settings all day 😁. 

PS, go on whatismyIPaddress.com and both IPV6 and IPv4 should now be recognised. Alternatively you can load  the IPV6 version of google and it should tell you there too.

If you want an apples to apples setup mainly. Some modern devices use it I'm guessing and there can be pros to efficiency and when accessing certain sites, etc. I don't know a massive amount, but I will most likely do some research regarding this. My main aim was to get it set up exactly like Eir's router. And IPV6 is supposedly the future.

Also, switching off the ONT isn't always required, but a general rule of thumb is to do so as it essentially covers the variables that can occur when using different devices.

Just digging this up again if that's ok. I just had eir FTTH installed. Is removing their router the best way to go about this? I will be using Deco X10

Just thought I'd chime in here in case it's of any use to anyone. I have similar working.

The key for me (as per above) was to plug directly into the ONT. And set vlan=10. The Eir router is back in its box.

I'm using an Asus RT-AX88U Pro wired into the ONT (and broadcasting WiFi). And then an Asus RT-AX82U (old router) in mesh mode over wifi to extend the wifi signal from the kitchen and beyond into the back garden. I have a third Asus router not in use, but I might add it to the mesh for upstairs . However it's not really required as the AX88U is so strong, so it's just a spare currently.

As you might tell, I'm a fan of Asus routers. A big fan of the kids settings/protection. Not to mention the stability!

Those are range extenders, so you wouldn't connect it directly to the Eir router.

They do have an "Access Point Mode" If you have ethernet running to those areas of the house, but I presume you don't?

You place them somewhere halfway between where you want better signal and where the router is.

You can change their SSIDs (WiFi name) to match the Eir router in their settings but YMMV. Your devices may or may not handover between the Eir router and the extenders with the same SSID.

You could instead replace the Eir router altogether with a TP-Link router to make your own integrated "mesh system" with the extenders -

https://amzn.eu/d/cU9YS1W

https://amzn.eu/d/09qQIYV

Do you not have to also set the PPPOE username/password?