Any other suggestion?

Go to DHCP List to check if C2 has assigned an IP for your NDAS, when the connection lost, check it again. did you try setting static IP for the NDAS? Device is not in DHCP Clients List. I tried also...

Cables are original. I tried also change cable between NDAS and my internet WAN. Internet is working on this cable ok.

Connection by USB working very well. Problem is in ethernet connection. Basic shema: NDAS - router - my PC. All communication is on ethernet without wi-fi. The lights are shining all time on NDAS on...

Model : TP-LINK Archer C2 Hardware Version : V1 Firmware Version : 0.9.1 3.2 v0032.0 Build 151022 Rel.60429n ISP : Hi. I have NDAS device (IOCELL 351UNE) and I have problem with working on TP-LINK...