Hello lisainbl
Yesterday i spoke with swisscom customer service on phone.
He confirmed something what i found strange, but not sure if its a problem.
In expert mode under diagnostic tab on the box menu, the wlan chipset is "unknown",
and the 2.4Ghz transfer power is 1.75, while the 5Ghz is 18.
He sends me an other box (currently internet box plus, but i get an internet box standard) to test.
After i get the box and test it, i will reply to this post.
Update:
Today everything worked fine. Transmit power was over 10 for the 2.4Ghz .
Nothing has been changed by me. Maybe from the company? I don't know.
Update 2:
Some kind of upgrade arrived to the tv box just a few minutes ago.
I can use DNLA sending again. Nice.
Box has arrived. Not even opened. I keep it for a week just to be sure.
I hope the problem will be solved for both of you too.