Yeah, I ran into this a few times myself. Usually, it happens when Epic is doing maintenance or there’s a temporary server hiccup. Logging out and restarting the launcher often fixes it, but sometimes you just have to wait a bit. Checking their official Twitter or status page helps to know if it’s a wider issue.
On my end, clearing the cache of the launcher helped once when it wouldn’t connect for hours. Also, make sure your internet connection is stable sometimes a VPN or firewall can block the launcher without you noticing.If you’re trying to buy a game while the servers are down, I’ve used cdkeyprices before to check legit keys. It’s not a workaround for server issues, but it can help plan your purchase so you’re ready once the launcher is back online.