I'm having the following strange behaviour with the DIR-615.
I have connected the router via ethernet to Laptop1 on Port 1, a NAS on Port 2 and on Port 3 I have a Netgear Powerline that connects to my PS3, and I use the wifi connection for my Laptop 2 and my mobile phone.
In the past, I used to use the remaining ethernet on the router (Port 4) to connect also my Laptop 2, therefore the ethernet cable still connected to port 4, but is not connected to the laptop anymore.
Yesterday suddenly I decided to unplug this ethernet cable from port 4 that is not used, and suddenly, I lost connectivity both internal and to the internet to my devices connected to the ethernet ports (Laptop 1, NAS, and PS3 connected with the Powerline), but wireless still working fine. When troubleshooting with windows 7, it tells me that there is a problem with the DNS.
What can be the problem in the router?? I have done almost anything, resetting the router, flushing dns on the laptop, enabling/disabling DNS relay on the router, but nothing happens.
Thanks