Minecraft Forums

Quote from Survivzor

Authentication issues potential fix:

ive noticed over the last month or so that the game keeps requiring access to new authentication server ip's, so i started keeping track of them.

184.73.255.200:443
184.73.179.96:80

then just now today a new one
184.73.237.83:443

2 Dec another new one
184.73.252.89:443

31 Dec another
184.73.234.214:443

~19 Jan 2014
174.129.10.60:443 to login , then,
174.129.225.250:443 to authenticate


i added these as 'allow' exceptions for my network traffic and it now authenticates just fine