What Does DNR not responding stand for when you're trying to get on the internet?
error -23048 outOfMemory: Not enough memory is available to issue the needed DNR query or to build the DNR cache. error -23047 dnrErr: The domain name server has returned an error. This was the only thing I could find for you, hope it helps.
Detect Network Settings. Your computer can't find the settings it needs to connect to the internet.