Website access through wifi

I have a issue. After updating to Ubuntu 17.10 i cant access my uni website through any wifi , while with wire connection it works perfectly. I tried to ping and resolve with systemd-resolve but didnt get anything. Output was:

systemd-resolve resolve call failed: Received invalid reply

I’ve moved this to the category because this site isn’t designed to take tech support questions. Sorry. I’d recommend using one of the official support channels listed on the page.