did you setup your dir-615 in mixed g/n mode? you need to do that. Also, I would recommend WPA 2 so you can bypass that authentification issue.
Thanks for your response.
I tried what you suggested but it won't let me save the settings.
Any ideas why?
I'm really getting fed up with this.

Edit:
Ok I manage to get it saved. I had to get into the router via 191.168.0.1 in order to save the configuration.
I now can get internet access with dlink usb recievers wua1340 and dwa-125. However I'm still having the same problems using Netgear wpn111v2 adapter.
Thanks for the help. It worked for the most part.
