Applying the Sep 2015 security patch can cause multiple issues, including:
1: Dialin.domain.com sign-in ability is broken
2: Mobility stops working
3: External Clients can’t sign in
4: Address book web queries fails
5: Credential Prompts after Signing in to Lync
The above issues can be avoided by ensuring your Lync servers are at the latest update level BEFORE applying KB3080353. Per MS support, the minimum requirement is July 2015 Lync Server 2013 CU 5.0.8308.920.
Short-term fix is to uninstall this security update and restart your Lync server(s). This will give you some breathing room to test/evaluate/plan the deployment of the July 2015 Lync server update. Since KB3080353 is a security update, it should be applied back on the server asap.
September 2015 Security update info - https://support.microsoft.com/en-us/kb/3080353
Read more »
1: Dialin.domain.com sign-in ability is broken
2: Mobility stops working
3: External Clients can’t sign in
4: Address book web queries fails
5: Credential Prompts after Signing in to Lync
The above issues can be avoided by ensuring your Lync servers are at the latest update level BEFORE applying KB3080353. Per MS support, the minimum requirement is July 2015 Lync Server 2013 CU 5.0.8308.920.
Short-term fix is to uninstall this security update and restart your Lync server(s). This will give you some breathing room to test/evaluate/plan the deployment of the July 2015 Lync server update. Since KB3080353 is a security update, it should be applied back on the server asap.
September 2015 Security update info - https://support.microsoft.com/en-us/kb/3080353
Read more »