Hallo Daniele
Thanks for the quick answer, missing from my original post, is that the buffering problem is on a laptop. My setup is
Laptop, browser + www.upctv.ch —> Wi-Fi, Access Point ( 2 alternative’s ) — > Netgear PowerLan ( 500 ) —> Main Router —> UPC Connect Box
TV with WiFi connection to UPC Connect Box works OK
Laptop, browser + Netflix, WiFi, PowerLan, UPC Works without buffereing problems.
Laptop is quite near to either main router or one of the 2 AP’s, so has a good Wi-Fi connection.
So it looks like www.upctv.ch has the problem.
Thanks again