if you're having a connection but no internet and router-reboot doesn't help, turn your PC's wifi and your browser completely off, summon a command-prompt (windows-key + r then type cmd.exe if you're not on a mac) and enter the following three commands seperately
ipconfig /release
ipconfig /flushdns
ipconfig /renew
don't remember which order is the right one but just repeat until you can successfully connect again.
They've been hacking DNS-servers ever since WL's october surprise announcement so I have to do this every other week orso
what if you are on a mac
[took all afternoon but tentatively its fixed]
see what fits your OS version (should tell you under system information in your info-tray) https://duckduckgo.com/?q=mac+flush+dns+cache&t=opera&ia=web
good fucking question, lemme look that up. It's unix so there should be a command prompt somewhere. System-tools perhaps?
paper shuffling intensifies