Okay so I start up minecraft and presson Multiplayer.
I have the I.P Address in already and I get:
Disconnected by Server Authentication Failed, Try Again!
I have never got this before and i'm wandering what the problem is.
Is it common?
I received this error myself, I checked my minecraft's original whitelist.txt file I was on this this being the case I checked my whitelist mod I was also on this, I then checked my only banning mod Mcbans I couldn't find anything I could change but this mod was setup incorrectly I removed it and reset my server the second I attempted to log in I was in the game. This being the solution for myself I would recommend removing Mcbans if you have it and attempting to log in then.