The Thomson has the wireless network turned on. After doing a reset I've just changed the SSID, and the wireless password, the Channel, and the WPA-PSK Encryption Key.
I have set up the WAP300N exactly like in this guide.
Now for a few weeks, everything runs fine. Our PC's, the Xbox 360, the PS3, and our Android Phones all connect without any issues. After this grace period, devices that connects through the Linksys WAP300N starts to being unable to connect through the internet. However, there is some connectivity. Almost like DNS has stopped working. However, assigning a fixed DNS (Thomson IP first, 8888 second) didn't do anything on my phone.
I had exactly the same issue before I last reset the devices, and once before that. All in a period of say 3 months or so.
What happens with the wireless range extension and how can I prevent it? Resetting and reconfiguring the network starts getting old.