BMC Error - Malformed message received.

[J Rangi]

We just bought some Dell PE 19XX servers, I configured the BMC on those. 
BMC was working fine for first few hours and then I started getting this error. 
Can some help me how can I get rid of this. 
I get the same error when I try to connect using solproxy.

ipmish -ip 192.168.1.112 -u root -p password power
Error(0xa2):BMC Error - Malformed message received.

Thank you,
-Jai