https://www.gamespot.com/articles/fortnite-servers-down-again-on-ps4-xbox-one-and-pc/1100-6456376/

Update: Epic has commented again on the problems. Although it seems as though log-in issues have been at least partially resolved, there are still problems with seeing your friends who are online and joining up with them. Epic says it's working to resolve this and will report back when it has more information. There's still no word on fixes for the bugs outlined below. The original story follows.

Following a long stretch of downtime related to maintenance yesterday, Fortnite's servers are again experiencing issues today, January 26. Epic Games has confirmed log-in issues on PC, PS4, and Xbox One--if you're unable to get online to play, you're not the only one.