Lync 2010 – Renew Certificate

Renewing Lync Certificates can be done in sort of 2 ways: the slow one (described here) or the faster one which I describe here.

Open MMC Concole on the Lync FE and localize the Certificate you want to renew – right click and select ‘all Tasks/ Renew Certificate with New Key..’

Click Next in the ‘Certificate Enrollment’ dialog and click Enroll on the ‘Request Certificates’ page

Start Lync Deployment Wizard on FE server and select ‘Step 3’ Request, Intsall or Assign Certificates and click ‘Run Again’

On the Certificate Assignment page select the renewed certificate and click Next

You can verify in IIS that certificate is updated
Verify IIS Cert

On FE start ‘Lync Server Management Shell’ and run Command ‘Stop-CsWindowsService’

Restart IIS service

On FE start ‘Lync Server Management Shell’ and run Command ‘Start-CsWindowsService’

Install renewed certificate on additional FE server and assign it with Lync Deployment Wizard

Repeat the other steps on additional FE