I had filled DNS with 8.8.8.8 and 8.8.4.4, but now I realized that must be the router IP on primary DNS and 8.8.8.8 (or other) in secondary DNS. I do not know if that have anything to see with the problem.
Except the very unlikely case where you would be using local names from your local DNS instead of using IP addresses or Internet names, it should not be the cause of any problem