SEP 12.1 clients is communicating to SEPM via proxy

Hello,

Recently our network team has provided the reports of proxy, in which we have observed that our SEP client is communicating to SEPM via proxy.

But that should not be the case in general, we bypass proxy for all internal traffic still Symantec client traffic to the Symantec servers going through the proxy.

This is not for all clients we have around 30,000 clients but from which as per report only around 2,500 clients is misbehaving.

Please suggest me on how we can troubleshoot this issue...

Details:

SEPM is installed on Windows 2008 R2 Standard, a client running on Windows 7 SEP 12.1 Ru6 MP1.