I have a KDL-55W905A TV and it works fine except for one thing.

The internet connection is lost after 30 to 35 min of watching. 

I am using Wifi. Before I hear that i should check at the signal... It is full... 

The Network @ home is Ubiquiti UAP-AC (two of them in range of the TV).

The Router is a Ubiquiti EdgeRouter™PoE.

I have multiple other devices that do work flawless.

Program version of TV is: PKG4.510EUA

I have tested WPA2 (two different networks) and Open WLAN.

I can ping the TV:s ip-address the whole time, although the TV cannot connect to Internet.

I have done multiple factory resets on the TV.

any ideas?

best regards

Davud