It started happening this morning (I'm on Snap 30/10 UFB). Works perfectly fine when connecting via wifi. However internet drops if I plug my pc to the box directly with ethernet cable (wifi off). Can still get in to the box configuration page so nothing wrong with LAN or the cable. Look like the box doesn't want to route internet traffic to the LAN ports. Have tried all other LAN ports and restarting the box but no luck. Any one had similar issue before?

Btw firmware has never been updated and haven't touched any router settings recently.

 

FRITZ!OS 05.51
Firmware version: 111.05.51