The WSUS system at my church was working just fine. We use AT&T as our ISP and we found out our type of DSL is going away so we had to change to another system (I think involving fiber). I wasn't involved in any of this.
The new modem was installed and immediately I lost VPN capability (our router has that built-in) and my daily reports from the WSUS server stopped. The modem is an NVG 510 which doesn't seem to have a good reputation but it's what we were given. Anyway the NVG 510 I discovered is a combination modem & router. So it wasn't letting traffic in and out that our old router, which is still in place, was handling nicely.
After a bunch of digging around, I found that I could set the new modem/router's firewall in in IP Passthrough mode. There is no way to set the NVG 510 as a bridge which any decent router would be able to do. Once I got Passthrough mode set up properly and changed couple of parameters on our old router, I was able to VPN in again. But the daily WSUS reports still won't go out.
This is the error message I get when trying to send out a test email. I've x'd out the actual IP address of the email server.
System.Net.Mail.SmtpException: Failure sending mail. ---> System.Net.WebException: Unable to connect to the remote server ---> System.Exception: A connection attempt failed because the connected party did not properly respond after a period of time,
or established connection failed because connected host has failed to respond xx.xx.xx.xx:25
--- End of inner exception stack trace ---
--- End of inner exception stack trace ---
at Microsoft.UpdateServices.Internal.BaseApi.SoapExceptionProcessor.DeserializeAndThrow(SoapException soapException)
at Microsoft.UpdateServices.Internal.DatabaseAccess.AdminDataAccessProxy.SendTestEmail(String emailLanguage, String smtpUserName, String senderEmailAddress, String smtpHostName, Int32 smtpPort, String recipients)
at Microsoft.UpdateServices.Internal.BaseApi.EmailNotificationConfiguration.SendTestEmail()
at Microsoft.UpdateServices.UI.SnapIn.Dialogs.EmailNotificationSettingsDialog.backgroundWorker_DoWork(Object sender, DoWorkEventArgs e)
I'm using my personal ISP's email server to send the report to another personal email account of mine. I have this same setup on another WSUS server and it's still working just fine so I know nothing has changed on the ISP end. I figure that there is still something in the new dual router setup that needs changing but I don't know what it is. Setting IP Passthrough on the new modem/router should be just sending all traffic straight through to the old router to handle, so I'm stumped.
Anyone have any ideas on what to do?
Jonathan