SEP clients connecting to GUP through LAN proxy

Dear All,

Need your expertise advice urgently on the below issue.

While monitoring, our network team has noticed SEP client machines (ver. 11.0.6MP3) connecting to the local GUP server (ver. 11.0.6MP3) through our local LAN proxy. Due to this our total proxy traffic got freezed. I believe clients should connect to GUP server via LAN not through proxy. Correct me if I am wrong..?

We are facing the above issue from last week. Till before there was no issue. Both GUP & SEP clients are in same subnet.

Does any one come across this kind of issue..? Kindly advice. Have attached sylink.log.