For people who had the same issue and are wondering about the solution - after communicating my MAC addresses to the TP Link support team the issue has been solved :).

Hi there I just did what you suggested in command prompt, and I actually do get a result with multiple IP addresses. Does this mean the DNS server configuration is correct? The problem is still there...

That is an extreme solution indeed. It seems like a firmware error on your end here, is there another option to resolve this issue? Otherwise I have no choice but returning both plugs. They are...

Hi I have two HS100 plugs, firmware is most up to date (through the Kasa app). I can succesfully connect to both plugs, however it is impossible to enable remote control. I always get the same error...