why won't my beta work

[mbarrett]

i have 2 computers , when i log in on the one computer the beta works a treat , on my main gaming computer the launcher will not load me in , i'm getting around 60 mb internet speeds , this just does not make sense , i will log in , it is fully up too date , i get the messing , the game is starting pls wait .... then all of a sudden the launcher will close , can someone please shred some light on this because its not making any sense