Fourth day without any VR2100 restart or any speed fluctuations. But I'm using VR2100 as "Wireless Router Mode". For VDSL modem i'm using another modem (see image schema above). This only confirms...

It is first evening when i do not see any problem with speed. But not thanks to VR2100 because i am not using as modem. Luck? :) There is my network now (i have zyxel only for week for testing then i...

@scoomby I am not sure. SNR and SNR Margin are little difference. But i can not find any proper documentation about it. (but it seems you have right)

Ok. I got another DSL device from ISP provider for one week. Should resolve what is problem. DSL line vs VR2100. I will give you info about my CRC errors. I have VR2100 as wireless router mode only...

See CRC. I think it is record value. Speedcheck for downstream show: 0,1Mbits (packet loss about 25% by ping) :P ISP engineer should come about 1 hours. He will be happy to see it.

I'll be a dickhead tomorrow for my ISP provider. :-) Thank you TPLINK. This modem is nightmare. :( Version: 1.5.0 0.9.1 v009e.0 Build 210303