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No network interfaces found (verifyNetworkConnection)

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  • W
    Wayne Workman @Sebastian Roth
    last edited by Feb 29, 2016, 11:07 PM

    @Sebastian-Roth said:

    So this issue only occurs on one switch port (building switch)?? As soon as you plug into a different port on the same switch things are fine? Either your network guys should have a close look at the specific port configuration or they better abandon that port altogether (if it’s just that single one!).

    No, not just one port. Once I get the error message in the OP for any port, that port seems to be permanently voo-doo’d.

    I don’t know what nac or nap is. If I ask my network people this, will they know what I’m talking about? We are 100% Cisco end-to-end.

    Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!
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    • S
      Sebastian Roth Moderator
      last edited by Feb 29, 2016, 11:10 PM

      Hopefully they have an idea what NAC is: https://en.wikipedia.org/wiki/Network_Admission_Control

      Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

      Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

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      • G
        george1421 Moderator
        last edited by Mar 1, 2016, 12:40 AM

        If you have to register (with some kind of network controller) new out of the box computers before you can use them then you have a NAC/NAP (different name same function) that manages access for your network. Since you don’t know the name you probably don’t have this.

        When you say you have cisco throughout. Is that real cisco switches (catalyst series) or cisco small business switches (SG series)? The reason why I ask, is the SG series has a nasty feature that is turned on by default called smart port. That feature will try to determine what device is connected to the port then assign the device to the predefined vlan. This “feature” listens for the connected device to announce what it is. This listening phase is several seconds, much like stp learning phase. I’m not a cisco person, so I don’t know if the catalyst series has this same function. But this smart port has caused me pain several times in that with it on, any vlan I set of a port will get overwritten with the smart port setting.

        Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!

        W 1 Reply Last reply Mar 1, 2016, 12:46 AM Reply Quote 0
        • W
          Wayne Workman @george1421
          last edited by Mar 1, 2016, 12:46 AM

          @george1421 They are all catalyst switches - varying models but none are over maybe 4 or 5 years old (yay free government money).

          Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!
          Daily Clean Installation Results:
          https://fogtesting.fogproject.us/
          FOG Reporting:
          https://fog-external-reporting-results.fogproject.us/

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          • W
            Wayne Workman @george1421
            last edited by Mar 1, 2016, 1:34 AM

            @george1421 said:

            As you were getting setup to video, did you restart the switch or plug the wiring going to the building at all?

            I don’t think I did, I think I just moved the switch to be on top of the computer. And of course I held the power button on the computer until it turned off.

            I’ll repeat this tomorrow and see if it’s repeatable.

            Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!
            Daily Clean Installation Results:
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            • W
              Wayne Workman
              last edited by Mar 1, 2016, 9:00 PM

              More info on this.

              I removed the mini-switch from the equation, and tried to image the computer.

              It wouldn’t even get a DHCP lease, but the NIC lights did turn on after a long while… then it failed. PXE-M0F.

              Turned it off, turned it back on.

              It got DHCP proper, but then got the OP error.

              Turned it off, turned it back on.

              Same thing, OP error.

              I put the switch between the computer and the building network again, imaging works perfectly.

              Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!
              Daily Clean Installation Results:
              https://fogtesting.fogproject.us/
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              https://fog-external-reporting-results.fogproject.us/

              M G 2 Replies Last reply Mar 1, 2016, 9:04 PM Reply Quote 0
              • M
                MRCUR Testers @Wayne Workman
                last edited by Mar 1, 2016, 9:04 PM

                @Wayne-Workman I would ask for verification that “spanning-tree bpdufilter enable” is set for the port OR that “spanning-tree portfast (int num) enable” is set.

                1 Reply Last reply Reply Quote 2
                • G
                  george1421 Moderator @Wayne Workman
                  last edited by Mar 1, 2016, 9:37 PM

                  @Wayne-Workman I agree that something is not configured correctly on the building switch. By putting an unmanaged switch in between it fixes (masks) the issue. Because the building switch is never seeing the port drop as the target computer transitions between phases during booting.

                  Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!

                  T 1 Reply Last reply Mar 1, 2016, 10:19 PM Reply Quote 0
                  • T
                    Tom Elliott @george1421
                    last edited by Mar 1, 2016, 10:19 PM

                    @george1421 I’ve actually seen this exact issue with our systems as well. Not very often, and the fix is indeed to put a managed switch between. Or, alter the firmware on windows to now put the nic into a “Power-saving” mode.

                    The latter is not a simple thing and is only good for that instance of the OS, if your image doesn’t have those firmware changes in place, they will not hold.

                    Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG! Get in contact with me (chat bubble in the top right corner) if you want to join in.

                    Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

                    Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

                    W 1 Reply Last reply Mar 2, 2016, 1:27 AM Reply Quote 0
                    • W
                      Wayne Workman @Tom Elliott
                      last edited by Mar 2, 2016, 1:27 AM

                      @Tom-Elliott Can you elaborate (further) ?

                      Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!
                      Daily Clean Installation Results:
                      https://fogtesting.fogproject.us/
                      FOG Reporting:
                      https://fog-external-reporting-results.fogproject.us/

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                      • ?
                        A Former User
                        last edited by Mar 2, 2016, 4:51 AM

                        I know this isn’t going to help, but I had 18 OptiPlex 7010s in a lab, and several had this issue. I noticed that the ones that had the issue had a different BIOS version from the others. After updating the BIOS, the issue was resolved in this case.

                        In another lab with 7010s, I had the same issue with a couple of machines, but it was unrelated to the BIOS version. Instead, the network connection just wasn’t “good enough” for FOG to see for some reason. In Windows, these machines could connect, but FOG just wasn’t having it for some reason. We replaced the patch cable at the the switch, and it resolved the issue. I figured that if Windows thought the connection was acceptable that FOG would, too, but that is most definitely not the case at all.

                        W 1 Reply Last reply Mar 2, 2016, 1:43 PM Reply Quote 1
                        • W
                          Wayne Workman @A Former User
                          last edited by Mar 2, 2016, 1:43 PM

                          @loosus456 That does help. I’ll update the firmware and see if it has any effect.

                          Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!
                          Daily Clean Installation Results:
                          https://fogtesting.fogproject.us/
                          FOG Reporting:
                          https://fog-external-reporting-results.fogproject.us/

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                          • W
                            Wayne Workman
                            last edited by Mar 3, 2016, 1:43 PM

                            I just updated an Optiplex 7010 from A12 to A21.

                            Early results don’t look any different.

                            Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!
                            Daily Clean Installation Results:
                            https://fogtesting.fogproject.us/
                            FOG Reporting:
                            https://fog-external-reporting-results.fogproject.us/

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                            • W
                              Wayne Workman
                              last edited by Mar 3, 2016, 2:25 PM

                              I’ve disabled all power saving features in Firmware - still no luck.

                              Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!
                              Daily Clean Installation Results:
                              https://fogtesting.fogproject.us/
                              FOG Reporting:
                              https://fog-external-reporting-results.fogproject.us/

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                              • W
                                Wayne Workman
                                last edited by Mar 3, 2016, 2:26 PM

                                Network team says that “spanning-tree portfast” is set on all client ports in the building.

                                Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!
                                Daily Clean Installation Results:
                                https://fogtesting.fogproject.us/
                                FOG Reporting:
                                https://fog-external-reporting-results.fogproject.us/

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                                • W
                                  Wayne Workman
                                  last edited by Mar 4, 2016, 7:28 PM

                                  Ok…

                                  I’m feeling pretty ignorant at the moment.

                                  I got to messing with this again and was able to try out a new unmanaged 1Gbps Cisco switch with it and I went through several different configurations in my tests and kept getting inconsistent results.

                                  I have finally found out what the issue was. It was a bad patch cable the whole time.

                                  That’s pretty shameful on my part as a technician, but it would be more shameful to conceal my mistake and not report what the issue was.

                                  I do believe I exhausted every single other possible option before I realized it was the patch cable. Checking simple things first is hammered into all of us as troubleshooters, and the lesson has definitely been reinforced in me.

                                  Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!
                                  Daily Clean Installation Results:
                                  https://fogtesting.fogproject.us/
                                  FOG Reporting:
                                  https://fog-external-reporting-results.fogproject.us/

                                  1 Reply Last reply Reply Quote 4
                                  • S
                                    Sebastian Roth Moderator
                                    last edited by Sebastian Roth Mar 4, 2016, 4:36 PM Mar 4, 2016, 10:36 PM

                                    @Wayne-Workman Thanks a lot for letting us know!!

                                    Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

                                    Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

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                                    • T
                                      thyago @Wayne Workman
                                      last edited by Jun 2, 2018, 4:39 PM

                                      @wayne-workman I’m having the same problem. Did you find a solution?
                                      Thanks

                                      T 1 Reply Last reply Jun 2, 2018, 5:27 PM Reply Quote 0
                                      • T
                                        Tom Elliott @thyago
                                        last edited by Jun 2, 2018, 5:27 PM

                                        @thyago did you check your patch cable? Are you sure it’s working properly? Have you read through the whole post to try other things as suggested to see if it helps your situation.

                                        The solution for the problem was replacing a patch cable, for this instance. We have no idea about yours. As this thread was 2 years old I’d recommend starting a new thread giving us the details of the problem and things you’ve already tried.

                                        Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG! Get in contact with me (chat bubble in the top right corner) if you want to join in.

                                        Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

                                        Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

                                        1 Reply Last reply Reply Quote 1
                                        • T
                                          tha_ross
                                          last edited by Jun 5, 2018, 8:38 AM

                                          I know you said @Tom-Elliott that this post is old and that @thyago should start a new thread.
                                          I just had the same problem and what worked for me was to have both network cards connected to the switch. (Computer was Dell R5500).

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