Wsyncmgr.log: The request failed with HTTP status 503
Kent have blogged about WSUS maintenance before – its important so that we don’t hit problems like the one I’m about to share with you, so make sure you do something about it – Link. “The request failed with HTTP status 503: Status Unavailable” in this case the source is a stored procedure running (Microsoft.UpdateServices.Internal.ApiRemoting.ExecuteSPGetUpdatesThatSupersedeUpdate). The wsyncmgr.log snippet above is an example of the WSUS sync failing because the IIS Application Pool had stopped. The reason for it stopping is that the amount of private memory allowed to the application pool had hit the roof, and when that happens the [...]