Wsus server not self updating
If you get a file not found error or something similar in your browser, this is probably for you.If you get a file download dialogue box, first click on cancel and assume this solution is not for your problem.If you got the file not found or similar error, then here is what you should do.If the entry points to another port or isn’t there, you probably have to make some other adjustments in IIS. Perhaps you have added a new site that you want to host and have given it Port 80, changing the default web site to another port, like 8080.When you point Automatic Updates to a WSUS server, the WSUS client user interface appears.If your client computers are pointed to the WSUS server and you do not see the WSUS client user interface shown above, see the next section. For this reason, you must have a Web site running on port 80, even if you put the WSUS Web site on a custom port.
As background, WSUS clients must connect to the Self Update virtual directory to check for a new version of the WSUS client before checking for new updates.
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Windows Server Update Services (WSUS), previously known as Software Update Services (SUS), is a computer program developed by Microsoft Corporation that enables administrators to manage the distribution of updates and hotfixes released for Microsoft products to computers in a corporate environment.
While you could change the physical path for the default web site to the directory you want for your new web site, another way is to do the following. If you host multiple web sites, do the same thing for each.
To accomplish client self-update, WSUS Setup creates a virtual directory under the WSUS Web site named Selfupdate.