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    Ath picking random channels

    Scheduled Pinned Locked Moved 2.0-RC Snapshot Feedback and Problems - RETIRED
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    • S
      shadow
      last edited by

      thing is, it happened with the last snapshot i had, too, several months earlier, so i can't imagine upgrading to a newer snapshot will fix it. but it's not immediately obvious how to get the snapshot date from the cli, and at the moment i can't access the gui.

      i could wipe and reinstall. but that's when this started; the previous (before the wipe) worked fine.

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      • stephenw10S
        stephenw10 Netgate Administrator
        last edited by

        Hmm, OK I agree it's unlikely to help then.  :-
        For future reference:

        
        [2.0-RC2][root@pfsense.fire.box]/root(1): uname -a
        FreeBSD pfsense.fire.box 8.1-RELEASE-p3 FreeBSD 8.1-RELEASE-p3 #0: Fri May 13 23:16:51 EDT 2011     sullrich@FreeBSD_8.0_pfSense_2.0-snaps.pfsense.org:/usr/obj.pfSense/usr/pfSensesrc/src/sys/pfSense_wrap.8.i386  i386
        
        

        Steve

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        • S
          shadow
          last edited by

          mine was from may 16, by the uname method, which i ha considered but wasn't certain of the veracity of.

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          • S
            shadow
            last edited by

            @stephenw10:

            Ah so if you backup and then restore your config.xml then it will stay on the correct channel?

            oh, i missed this. i don't even need to restore. i can just go to the gui, make no change, "apply" and reloading the config that's already there will fix it.

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            • stephenw10S
              stephenw10 Netgate Administrator
              last edited by

              Yet at boot time, when it presumably reads and applies that same config, it's coming up on a random channel.
              Are there any errors in the logs like it's failing to set the channel? Perhaps the wifi hardware is still initialising at that point and can't be set.  :-\

              Steve

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              • S
                shadow
                last edited by

                well, i'd expect it to not have its SSID right either, in that case. but everything is right including the WEP key. just, and only, not the channel.

                the log shows that ath0 is the first interface loaded on the system, before either ethernet is. it is probed 29 seconds before the log shows:
                Jun 12 22:49:35 rtr check_reload_status: Reloading filter

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                • stephenw10S
                  stephenw10 Netgate Administrator
                  last edited by

                  This is now pure speculation….
                  The ath driver supports many hardware configurations. Some are better supported than others. The ath driver provides an interface to setup the hardware that offers all the options available however because of hardware support some options may not be fully functional. For example there is an option to alter the regulatory domain of the radio but (as of 2006!) the code was not there for the 5212.

                  Perhaps, since changing the channel is an actual hardware change, it is not able to set the channel correctly but does configure the ssid and security. You'd hope it would through up an error. You'd also expect other people to be having a problem.  :-\

                  Steve

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                  • S
                    shadow
                    last edited by

                    thing is, this ath hardware worked fine with every previous snapshot until i reinstalled in may. so unless upstream broke it, that seems unlikely.

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                    • C
                      cmb
                      last edited by

                      @shadow:

                      thing is, this ath hardware worked fine with every previous snapshot until i reinstalled in may. so unless upstream broke it, that seems unlikely.

                      Nothing upstream has changed in ath since a year ago (RELENG_8_1 hasn't changed), and nothing in our wireless code has changed in months. But intermittent issues are the norm for some people with wireless for unknown reasons.

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                      • S
                        shadow
                        last edited by

                        i don't suspect the wireless hardware; i suspect the config being written to it is wrong. i guess i need to modify the scripts to log what config is actually set to confirm that.

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