Two load balanced server sending requests to external system on different protocol

Hi,
I have two loadbalanced OEG servers (server A and server B) with same endpoint configurations in envsetting.props. But when requesting the service, it is creting different URI in both servers. In one of server (server A)it sets URI with following details :
DEBUG   30/Mar/2015:07:29:34.356 [92b0e940]     Set host='abc.tdc.dk'
DEBUG   30/Mar/2015:07:29:34.356 [92b0e940]     Set port='80'
DEBUG   30/Mar/2015:07:29:34.356 [92b0e940]     Set scheme='https'
and fails with following error : ERROR   30/Mar/2015:07:29:34.370 [92b0e940]         [SSL_connect, 0x1220]: error - SSLv2/v3 read server hello A.
However another server (server B),sets URI as :
DEBUG   30/Mar/2015:07:29:34.356 [92b0e940]     Set host='abc.tdc.dk'
DEBUG   30/Mar/2015:07:29:34.356 [92b0e940]     Set port='80'
DEBUG   30/Mar/2015:07:29:34.356 [92b0e940]     Set scheme='http'
and successfully processes the request.
So can you please help here to know even if we are using same endpoints configuration (abc.tdc.dk ) and port (80) on both the servers , then why the URL is set as http on one of server and https on another.
Thanks !!!
Akshay

Hi
Thanks for immediate respose. I tried the ping/acknowledgement example in the biginning itself. It doesn't work. I also tried by changing the agents ( to respective values suitable for my systems) of that example. Then also it failed. The error in that case also same. The message will not propogate from the out going agent.

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