


WSUS cannot connect to Microsoft servers for a variety of reasons, including: network connection issues, incorrect proxy settings, ports not open, date and time out of sync, and database corruption. The solutions are: verify network connection, check proxy settings, check ports, synchronize date and time, repair database, reinstall WSUS, or contact Microsoft Support.
What should I do if WSUS fails to connect to Microsoft server
Question: Why does my WSUS Server can't connect to Microsoft server?
Answer: There are many reasons for WSUS connection failure. Here are a few common solutions:
1. Verify Internet Connection
- Make sure the WSUS server is connected to the Internet.
- Check whether your firewall or proxy settings allow the WSUS server to access the Microsoft Update website.
2. Check proxy settings
- If you are using a proxy server, make sure WSUS is properly configured to use it.
- Navigate to Options > Updates > Proxy Server on the WSUS Management Console.
3. Verify WSUS ports
- WSUS uses ports 80 and 443 for communication.
- Make sure these ports are open in the firewall.
4. Check the date and time
- The date and time of the WSUS server must be synchronized with the Microsoft server.
- Run the "w32tm /resync" command on the server to synchronize the time.
5. Repair the WSUS database
- Corrupted WSUS database may cause connection issues.
- Run the "wsusutil reset" command to repair the database.
6. Reinstall WSUS
- If all else fails, you may need to reinstall WSUS.
- Reinstalling will clear all WSUS data, so be sure to back up your settings before continuing.
7. Contact Microsoft Support
- If you still cannot resolve the WSUS connection issue, please contact Microsoft Support.
- They can help you diagnose the problem and provide a solution.
The above is the detailed content of What should I do if the connection between wsus and Microsoft server fails?. For more information, please follow other related articles on the PHP Chinese website!

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