CRASHING

Put the summary of the bug you're having here. BTW I was in 1.7.2

What I expected to happen was...:
I was going to join this server.... (94.23.252.36:55574 is the ip) and I was going to play minecraft.

What actually happened was...:
It just BOOM crashed 1000 times (fine, 20-30 times).

Steps to Reproduce:
1. Put the ip address 94.23.252.36:55574 in the 1.7.2.
2 Join the server
3. It should crash.