Invalid Credentials

[KoolenDasheppi]

I tried using my alt, and it says invalid credentials, I typed in my Mojang email and password. Is there a way you could implement connecting to offline mode servers? Btw, I am using my localhost server.

[phase]

Either the Mojang servers were down or you used an invalid account. If you have a premium account, you can connect to any offline or online server.

[KoolenDasheppi]

Mojang servers are up, tried 2 accounts with exact passwords, maybe it's broken? My computer is crappy, maybe that has something to do with it.