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..’
Localize_Lync_Cert

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

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

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

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