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    Solved IIS Running But Cannot Connect

    IT Discussion
    windows iis iis 8.5 web server
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    • Reid Cooper
      Reid Cooper last edited by

      This has to be something silly but I figured you guys could get me through it far faster than if I was digging on my own. I have a Server 2012 R2 IIS setup and I had an ASP.NET application that I was porting working fine. Then the machine rebooted and now it will not connect. I get a 503 error "service is unavailable" when going to the same URL that worked before. In fact, even just http://localhost/ gives that error.

      The service is running. If I go into the IIS Manager, the site says it is up. How do I track down the source of the 503?

      1 Reply Last reply Reply Quote 2
      • scottalanmiller
        scottalanmiller last edited by

        What do the logs say?

        1 Reply Last reply Reply Quote 0
        • Reid Cooper
          Reid Cooper last edited by

          Don't see anything in the logs related to any IIS errors.

          1 Reply Last reply Reply Quote 0
          • DustinB3403
            DustinB3403 last edited by

            Did a firewall setting get changed?

            Is this a public facing website?

            Reid Cooper 2 Replies Last reply Reply Quote 0
            • Reid Cooper
              Reid Cooper @DustinB3403 last edited by

              @DustinB3403 said:

              Is this a public facing website?

              No, will face into the LAN only. It's just for internal use. And I am only testing from the local machine right now, and even that is not working.

              1 Reply Last reply Reply Quote 0
              • Reid Cooper
                Reid Cooper @DustinB3403 last edited by

                @DustinB3403 said:

                Did a firewall setting get changed?

                No, it is centrally controlled via GPO. Nothing has changed. And I am testing using the loopback which should not hit it and did not hit the firewall before. And HTTP is allowed through it, too.

                1 Reply Last reply Reply Quote 0
                • DustinB3403
                  DustinB3403 last edited by

                  Is this just a basic HTML website? It sounds like you just have a hung service.

                  JaredBusch Reid Cooper 2 Replies Last reply Reply Quote 0
                  • JaredBusch
                    JaredBusch @DustinB3403 last edited by

                    @DustinB3403 said:

                    Is this just a basic HTML website? It sounds like you just have a hung service.

                    He stated it was an application. First post wasn't that far up.

                    DustinB3403 1 Reply Last reply Reply Quote 0
                    • DustinB3403
                      DustinB3403 @JaredBusch last edited by

                      @JaredBusch said:

                      @DustinB3403 said:

                      Is this just a basic HTML website? It sounds like you just have a hung service.

                      He stated it was an application. First post wasn't that far up.

                      Sorry duh.

                      1 Reply Last reply Reply Quote 0
                      • DustinB3403
                        DustinB3403 last edited by

                        @Reid-Cooper what application are you running?

                        Reid Cooper 1 Reply Last reply Reply Quote 0
                        • scottalanmiller
                          scottalanmiller last edited by

                          A 503 means that IIS is responding but that there is an error. Here are the possibilities for the error code: https://technet.microsoft.com/en-us/library/cc781893(v=ws.10).aspx

                          Because a 503 and not a "Page Cannot Be Displayed" error is what is coming through, it sounds like we are past the Firewall point and are dealing with something wrong with IIS configuration not Firewall. This implies (I think) that port 80 is making it through end to end to deliver the error code.

                          1 Reply Last reply Reply Quote 0
                          • Reid Cooper
                            Reid Cooper @DustinB3403 last edited by

                            @DustinB3403 said:

                            Is this just a basic HTML website? It sounds like you just have a hung service.

                            I have an ASP.NET application. Old school ASP.NET 2.0.

                            JaredBusch 2 Replies Last reply Reply Quote 0
                            • Reid Cooper
                              Reid Cooper @DustinB3403 last edited by

                              @DustinB3403 said:

                              @Reid-Cooper what application are you running?

                              It's a small semi-custom thing that we have run for years but is being moved to a new server.

                              1 Reply Last reply Reply Quote 0
                              • JaredBusch
                                JaredBusch @Reid Cooper last edited by

                                @Reid-Cooper said:

                                @DustinB3403 said:

                                Is this just a basic HTML website? It sounds like you just have a hung service.

                                I have an ASP.NET application. Old school ASP.NET 2.0.

                                Are you certain there are no logs?
                                By default all sites should log here: %SystemDrive%\inetpub\logs\LogFiles

                                Reid Cooper 1 Reply Last reply Reply Quote 0
                                • JaredBusch
                                  JaredBusch @Reid Cooper last edited by

                                  @Reid-Cooper said:

                                  I have an ASP.NET application. Old school ASP.NET 2.0.

                                  Wait 2.0? Did you properly configure the pool? Gimme a minute and I can log into a Server 2012 R2 with IIS running.

                                  JaredBusch Reid Cooper 2 Replies Last reply Reply Quote 0
                                  • JaredBusch
                                    JaredBusch @JaredBusch last edited by

                                    @JaredBusch said:

                                    @Reid-Cooper said:

                                    I have an ASP.NET application. Old school ASP.NET 2.0.

                                    Wait 2.0? Did you properly configure the pool? Gimme a minute and I can log into a Server 2012 R2 with IIS running.

                                    This is the application pool. You may also need to select classic pipeline mode.

                                    https://i.imgur.com/aKrW3xT.jpg

                                    Reid Cooper 1 Reply Last reply Reply Quote 1
                                    • Reid Cooper
                                      Reid Cooper @JaredBusch last edited by

                                      @JaredBusch said:

                                      Are you certain there are no logs?

                                      No, only certain that I didn't find anything logged 🙂 I'll check again.

                                      1 Reply Last reply Reply Quote 0
                                      • Reid Cooper
                                        Reid Cooper @JaredBusch last edited by

                                        @JaredBusch said:

                                        @Reid-Cooper said:

                                        I have an ASP.NET application. Old school ASP.NET 2.0.

                                        Wait 2.0? Did you properly configure the pool? Gimme a minute and I can log into a Server 2012 R2 with IIS running.

                                        Yes, very old. And I "did" have it configured properly, it was running fine before the reboot. So at least at some point it was working as it should.

                                        1 Reply Last reply Reply Quote 0
                                        • Reid Cooper
                                          Reid Cooper @JaredBusch last edited by

                                          @JaredBusch ah ha, there we go! The 2.0 pool had "stopped" for some reason. I started it and the site came up. Thanks!

                                          1 Reply Last reply Reply Quote 1
                                          • Reid Cooper
                                            Reid Cooper last edited by

                                            There were two application pools, one for 2.0 Integrated that was running, and one for 2.0 Classic which had stopped. Classic was the one that was needed.

                                            JaredBusch 1 Reply Last reply Reply Quote 0
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