Error 109 The request was in a format that the server did not expect
I have a major problem with one of the SEP manager and clients connected to that machine. All of the clients are not communicating with server. I examined one of the clients. The error on the client side is Error 109: "The request was in a format that the server did not expect". I was instructed to use Symantec Endpoint Protection Support Tool. However, it DOES not show the cause of the problem. Only error reported is "Local Security Policy's Network access: Sharing and security model for local accounts is set to: Guest only - local users authenticate as Guest.", witch i suppose is irrelevant in this case. (This client machine is part of domain network, i can authorize with alternate credential). All other tests passed successfully, including SEPManager communication tests, where the answer to request on 8014 port is http code 200.
In act of desperation, i uninnstalled client, and installed it again. This operation did not change the situation. I need assist to find out, what is the cause of the problem and solve it permanently.
Thanks in advance and sorry for my english.