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    WOL not working for all hosts in group

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    • D
      Dark000
      last edited by Dark000

      Server
      • FOG Version: 1.4.4
      • OS: Cent0S 7.3
      Client
      • Service Version:
      • OS: Win10
      Description

      I upgraded from 1.2 to 1.4.4. Now wol for single host works normally. Wol for groups doesn’t. What i found out is that if the group has low number of hosts of no more than 6 then it works even for the groups. But if there is more it doesn’t. Then some computers wake up and some don’t.

      1 Reply Last reply Reply Quote 0
      • D
        Dark000 @Tom Elliott
        last edited by

        @Tom-Elliott Thank you for the workaround. It works now, so that will give me the time to look into network issue. Thanks again, you always come through.

        1 Reply Last reply Reply Quote 0
        • Tom ElliottT
          Tom Elliott
          last edited by

          So WOL IS working for groups? It’s only after a certain number that it doesn’t for “some” machines? Just guessing, but Multicast filtering is enabled on your network?

          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

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          • D
            Dark000
            last edited by

            Yes that is correct (the topic title could be better formed). If i put those hosts that didn’t power on into new group (or individual host wol) the wol works but again only until there are less than 6 members. I am guessing that Multicast filtering is enabled because the thing is that wol worked for the whole group (more than 6) in 1.2 version of fog. Can i somehow troubleshoot the issue inside the fog or do you think this could be network issue.

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            • Tom ElliottT
              Tom Elliott
              last edited by

              If I had to guess, it sounds like a network problem. In 1.2.0 WOL occurred 1 host at a time. While this worked, if you had a large group, it blocked the FOG Server until all hosts in the group had received the wol packet. In newer versions of FOG we are handling it much more efficiently, but it’s likely “spamming” the network all at once causing the problem you’re seeing.

              Again this is only a guess. I would highly suggest looking at the network though as it’s the first guess I can think of causing the systems to not boot all at once.

              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 0
              • D
                Dark000
                last edited by

                Then it is definitely network issue. If it is not too much of a trouble is it possible to get fog 1.2 wol functionality back (where its 1 host at a time). I know the new way is more efficient but just until i can figure out the network issue.

                Tom ElliottT 1 Reply Last reply Reply Quote 0
                • Tom ElliottT
                  Tom Elliott @Dark000
                  last edited by Tom Elliott

                  @Dark000 For your own needs, I’ll say, open the file: /var/www/fog/lib/fog/wakeonlan.class.php

                  At line 70 insert a newline after $mac->wake($SendTo, self::$_port); that reads sleep(1);

                  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

                  D 1 Reply Last reply Reply Quote 1
                  • D
                    Dark000 @Tom Elliott
                    last edited by

                    @Tom-Elliott Thank you for the workaround. It works now, so that will give me the time to look into network issue. Thanks again, you always come through.

                    1 Reply Last reply Reply Quote 0
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