Hi cornelisdigitaa. Have you tried setting a reserved IP address on your router and a static IP on the phone? Also, how many devices do you have connecting to your router?
Nope, no difference at all, whether it's just one or 3 devices connecting....
I'm planning a day at someone else's house and see if the problem persists over there.
same problem I had with my router and eMax, when it happens, have you verified that there is internet connection with other devices? It happened to me that if the Internet went away, even when it returned, the phone was not able to connect.