Efibre connection keeps dropping devices

Hi all, got hooked up with Digiweb efibre yesterday. The Digiweb guy was out yesterday morning and when I got home yesterday neither my iPad or iPhone would connect to the network . It was recognising the fritz box but not connecting.
A few hours later both device randomly connected. Happy days.
Today I was on the iPad all morning, went to charge it and it dropped the connection. However my iPhone was still connected. It still recognised the network but wouldn't acess it. I tried everything, forgetting network, renewing lease,resetting network connections, turning router off. None of it worked, the iPad still wouldn't connect but the iPhone would. Finally got it to work by clicking on the blue I button beside the network, clicking on static and entering in all the details of the network from the iPhone. This got the iPad connected but then the iPhone disconnected. Then a few minutes later the iPad connection dropped again. Going nuts here anyone know what's going on?