Have you had a chance to use the search feature or browse a few threads below the top where there is one on Windows 11 and possible solutions from that thread?
a. On the Start Menu search, type gpedit and start the Edit Group Policy app (i.e. Local Group Policy Editor). If you are using Home edition, skip to step 8.
b. In the console tree, select Computer Configuration > Windows Settings > Security Settings> Local Policies > Security Options.
c. Double-click Microsoft network client: Digitally sign communications (always).
