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An unknown error occurred while processing the certificate

I recently set up a new agent handler in my environment,I have assgined some agents to it.

A issue was from the Mcafee agent monitor: "Failed to upload package to ePO Server".

So i check the logs from agents and agent handler:

agent client log:

020-08-08 09:10:19.571 masvc(3612.4124) ahclient.Info: Network library rc = <1008>, Agent handler reports response code <503>.
2020-08-08 09:10:19.571 masvc(3612.4124) ahclient.Info: Agent handler reports server busy. response code 503.
2020-08-08 09:10:19.571 masvc(3612.4124) ahclient.Info: Spipe connection response received, network return code = 1008, response code 503.
2020-08-08 09:10:19.571 masvc(3612.4124) DataChannel.Manager.Error: Failed to upload DataChannel items - Network<1008>, HTTP Response<503>
2020-08-08 09:10:19.572 masvc(3612.4124) DataChannel.Manager.Error: Failed to upload package to ePO Server
2020-08-08 09:10:19.573 masvc(3612.4124) ahclient.Info: Agent communication session closed

Agent handler log:

20200808091038 E #04324 MCUPLOAD SecureHttp.cpp(984): Failed to send HTTP request. Error=An unknown error occurred while processing the certificate.
20200808091038 E #04324 MCUPLOAD (-2146893017)
20200808091038 E #04324 NAIMSERV server.cpp(558): Failed to send request, err=0x80004005, HTTP status code=0
20200808091038 E #04324 NAIMSERV server.cpp(923): Error sending data channel message to application server

I have searched for some information in google,but it didn't work,  also try some mcafee KBs.

Does Anyone know how to fix below issues of agent and agent handler?

1 Reply
McAfee Employee
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Re: An unknown error occurred while processing the certificate

Have you tried regenerating the certificate?  See KB90760.  Also, make sure ports 8443 and 8444 (or whatever ports you are using if these have changed) are open from ah to epo server.  The agent handler uses both ports for communication with tomcat.  

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