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OCS 2007 error MTLS (Your session was ended. Communicator Web Access cannot sign in to the server. If this problem persists, contact your system administrator.(Error code: 0-0-18100-2-0)”) RRS feed

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    I have OCS 2007 environment as follow and it’s configured Cisco HW NLB. We have external URL to access the cwa call https://cwa.contoso.com .

    TWO OCSED-01 / 02

    Two OCSW -01/02

    TWO OCSFE-01 / 02

     

    Most of the internal server’s certificates were got expired last week. What I was done is I have first renewed the OCSW-01 and 02. The OCSW-01 internal certificate (https://cwa.contoso.local  was expired on 15/01/2011 I have renewed it on 15/01/2011. And checked the external URL https://cwa.contoso.com it’s worked fine.

     

    After that I have seen my TWO OCSFE-01 / 02 internal certificate going to expire on 22/01/2011 and 22<sup>nd</sup> morning I was renew  that as well (https://pool02.contoso.local) . The Renewal has done for the both servers OCSFE-01 / 02. After that I tried to access the CWA site from external https://cwa.contoso.com and I got the below error.

     

    “Your session was ended. Communicator Web Access cannot sign in to the server. If this problem persists, contact your system administrator.(Error code: 0-0-18100-2-0)”

     

    After that what I was did is open the OCSEF consol and map the new certificate OCCFE front end web server and restart the OCS services. After that I open the External URL. https://cwa.contoso.com and works perfect.

     

    After two days I was checked the external URL https://cwa.contoso.com now I’m getting the same error.

    “Your session was ended. Communicator Web Access cannot sign in to the server. If this problem persists, contact your system administrator.(Error code: 0-0-18100-2-0)”

     

    When I checked the OCSED-01 and 02 server event log I can see the pool02.contoso.local internal MTLS error. But that certificate was renews. I need support to resolve this issue.

     

    Aucsna
    Saturday, January 29, 2011 7:03 AM

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    I have 2 load balances CWA servers, each server have 2 certificate installed (for SSL, and MTLS), Only the SSL certificate was renewed and assigned to both SSL and MTLS, which cause CWA servers communications fail with the pool servers
    Aucsna
    Monday, January 31, 2011 5:23 AM
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    I am having the same issue. We have one edge server, two load balanced director servers, two front end servers and one web server that hosts CWA. Our certs were about to expire so I renewed all of them. Everything seems to work except CWA. Edge, director and front end services are up and running with the renewed certs. I updated the cert on the webserver that hosts CWA and renewed that and double checked the bindings to make sure it is using the new cert.

     

    How I am getting "A problem occurred and the session was ended. Please sign in again. If the problem persists, contact your system administrator.(Error code: 0-0-18401-0-0)" when trying to log into CWA. You mention renewing the MTLS cert, I didn't think that applied to CWA. How do I go about doing that?

    Wednesday, October 5, 2011 6:09 PM