This isn't the same problem that I have seen other places in thie forum. Its the Unable to retrieve IP address error, but it happened out of the blue.
I had it connecting to a router (acting as an access point) for about 2 weeks, and now i can't connect to that router, or several others that it had been connecting to fine.

I tried Manually setting the ip and dns etc. It said that it had connected to the network, but i was not getting internet.

I tried deleting the connection, adn reseting the router, both did not work.

I think it s a problem with the n810, because i cannot connect to any connection now, and i was previously able.

Any help would be greatly appreciated.

Thanks,
Clockwork.