EOS occasionally goes down for either maintenance or an outage. Everything seems normal on their end, but if you're still having trouble, try restarting your internet and making sure your PC's time is synced to internet time. If you ever want to see if EOS is down, you can check here: https://status.epicgames.com/
Are you using mods, by chance? If not, I have a couple more suggestions for you:I did everything you said, the problem did not go away, and I also looked at the epic status online.