Troubleshooting the WSUS synchronization process

Troubleshooting the WSUS synchronization process

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Yesterday I posted some general tips on troubleshooting the WSUS installation process and today we're going to take a quick look at troubleshooting synchronization. When troubleshooting synchronization issues you need to make sure you have the basics covered. This includes:

  1. Make sure you can browse to http://update.microsoft.com.
  2. Make sure that ports 80 and 443 are open.
  3. If a proxy is used, make sure it is properly configured.

In addition to the above, a couple quick tests you can do are:

  1. From a downstream server to an upstream server, make sure you can ping the server and the same ports are opened between the upstream server and downstream server.
  2. Check name resolution between both upstream server and downstream server to make sure it can be reached by the FQDN.

Reference: http://technet2.microsoft.com/windowsserver/en/library/a3635b9d-2578-40b5-bef0-2da78650ebec1033.mspx.

You'd be surprised how many issues get resolved simply be doing the steps above so if you're running into WSUS synchronization issues this should get you started in the right direction. Tomorrow I'll take a quick look at troubleshooting downloads.

Joao Madureira | WSUS Support Engineer

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  • Monday and Tuesday we talked briefly about some basic troubleshooting steps for WSUS setup and synchronization,

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