I’m having this issue too. I haven’t played in 6 months due to moving from the Uk to Bulgaria, and on top of that I’m on a different computer as my HDD died. I wondered if it might be some router settings, but everything else works fine. My son is playing another game online atm with no trouble, and my wife is on You-tube. I’ll try what stormstrike suggests as it has to be a problem with the client if its not serverside or ISP related.
Looking at other threads this issue has been around for months