WSUS 3.0 SP2 will not run after installing update 2720211

Question

http://support.microsoft.com/kb/2720211
The update was installed and server rebooted.  Now the WSUS console on Server 2008 SP2 will not run.  "Error: Connection Error.  An error occurred trying to connect to WSUS server."
The update service and IIS are both running.
When checking for updates from clients, they  show a message saying their update software needs to be upgraded, but they fail updating.
I was going to uninstall the update, but there is no option to uninstall the update from the WSUS server.
What are options to fix this?

Answer 1

This page helped alot. Let me recap for others on the interwebs.
Cause:
- Applied KB2720211 to a WSUS 3.0 SP2 server thats running on Windows 2008 64 bit server with local SQL db.
What happened:
- I could no longer sync my WSUS server with the interwebs.
- clients could still connect to WSUS and I could still open the WSUS console.
- Uninstalled WSUS, left DB and downloads and reinstalled WSUS in attempt to fix broken syncing.
- Clients could now no longer sync with WSUS server. (They got Windows Update error code 800B0001).
Solution:
- Googled, found this page.
- Followed just these last few steps that Chucker2 posted.
Extract necessary files from 2720211 installer
Download the KB2720211 installer for your architecture from Microsoft (http://support.microsoft.com/kb/2720211)
Extract WUSSetup.msp from the installer by running the installer with the /extract parameter (example: "WSUS-KB2720211-x64.exe /extract")
With 7-zip, open WUSSetup.msp and extract "PCW_CAB_SUS".
With 7-zip, open "PCW_CAB_SUS" and extract "DbCert", "DbCertDll", and "DbCertSql".
Rename those files to "WSUSSignDb.cer", "WSUSSignDb.dll", and "WSUSSignDb.sql", respectively.
On your WSUS server, navigate to "C:\Windows\SYSMSI\SSEE\MSSQL.2005\MSSQL\SchemaSig" and copy the extracted "WSUSSignDb.cer" and "WSUSSignDb.dll" to it. Make a backup copy of the two existing versions, just in case.
On your WSUS server, navigate to "C:\Program Files\Update Services\Database" and copy the extracted "WSUSSignDb.sql" to it. Make a backup copy of any existing versions of the file.
Reinstalled 2720211
PROBLEM FIXED AND CLIENTS COULD ALL SYNCH AGAIN.
Thanks Chucker 2.
ps. Susan Bradley stop polluting every WSUS post on the interwebs with your constant links to WSUS KB2720211 : Common issues
encountered and how to fix them
this is the best solution. after reboot the problem is solved .
kailash