https://community.extremenetworks.com/t5/extremewireless-identifi/3935i-ap-reverts-to-10-01-03-0007-after-upgrade-to-10-01-04-0011/m-p/33751#M1210 Hi Jeremy,<BR /> <BR /> the AP resides 2 FW codes.<BR /> If he reboots 3 times it using his backup file.<BR /> <BR /> You can download the 10.01.04 a second time to the AP so that the backup code get overwritten .<BR /> In this case the AP shouldn't go back to a another FW Version.<BR /> <BR /> This issue need to be worked via a GTAC case.<BR /> <BR /> But I can make some suggestion in order get more stability in your network.<BR /> <BR /> - On radio 2 use b/g/n ( if not)<BR /> - On 5Ghz use 40 Mhz Channel Bandwith<BR /> - Disable in the WLAN Services Management Frame Protection<BR /> - disable in QoS flexible client access if using<BR /> - disable 11k support<BR /> - disable auto tx power<BR /> - disable DCS<BR /> -AP - radio Settings-Advance--&gt; set DTIM to 2 <BR /> - in the same page --&gt; Multicast Settings <BR /> Max % of non-unicast traffic per Beacon period set to from 100 to 10 !<BR /> <BR /> Those are some possibility to get more stability but in the end Engineering need to look to the AP Trace logs for the reason of the reboot.<BR /> <BR /> Good luck!<BR /> <BR /> UMut<BR /> <BR /> Wed, 04 May 2016 18:50:00 GMT Umut_Aydin 2016-05-04T18:50:00Z https://community.extremenetworks.com/t5/extremewireless-identifi/3935i-ap-reverts-to-10-01-03-0007-after-upgrade-to-10-01-04-0011/m-p/33750#M1209 3935i AP reverts to 10.01.03.0007 after upgrade to 10.01.04.0011 only if a radio is turned on. If both radios are left in the admin off setting the AP keeps the 10.01.04.0011 firmware (This was an observation I made while trying to find a root cause). As soon as a radio is turned on the AP reboots 3 times and then reverts back to 10.01.03.0007.<BR /> <BR /> I have opened a case with GTAC on 4/28 - it was escalated but I thought someone might have some ideas as to anything I could try to remedy this. The AP's in question are in production, I haven't had many complaints yet, just like to have things fixed. The AP's are running the 10.01.03.0007 firmware and using DFS channels that were not introduced until the latest .04 release.<BR /> <BR /> More food for thought - I have 3825 AP's running this firmware on this same pair of controllers and they do not revert, they work as they should.<BR /> <BR /> Thanks for any help you guys can provide.<BR /> Mon, 02 May 2016 20:44:00 GMT https://community.extremenetworks.com/t5/extremewireless-identifi/3935i-ap-reverts-to-10-01-03-0007-after-upgrade-to-10-01-04-0011/m-p/33750#M1209 Jeremy1 2016-05-02T20:44:00Z https://community.extremenetworks.com/t5/extremewireless-identifi/3935i-ap-reverts-to-10-01-03-0007-after-upgrade-to-10-01-04-0011/m-p/33751#M1210 Hi Jeremy,<BR /> <BR /> the AP resides 2 FW codes.<BR /> If he reboots 3 times it using his backup file.<BR /> <BR /> You can download the 10.01.04 a second time to the AP so that the backup code get overwritten .<BR /> In this case the AP shouldn't go back to a another FW Version.<BR /> <BR /> This issue need to be worked via a GTAC case.<BR /> <BR /> But I can make some suggestion in order get more stability in your network.<BR /> <BR /> - On radio 2 use b/g/n ( if not)<BR /> - On 5Ghz use 40 Mhz Channel Bandwith<BR /> - Disable in the WLAN Services Management Frame Protection<BR /> - disable in QoS flexible client access if using<BR /> - disable 11k support<BR /> - disable auto tx power<BR /> - disable DCS<BR /> -AP - radio Settings-Advance--&gt; set DTIM to 2 <BR /> - in the same page --&gt; Multicast Settings <BR /> Max % of non-unicast traffic per Beacon period set to from 100 to 10 !<BR /> <BR /> Those are some possibility to get more stability but in the end Engineering need to look to the AP Trace logs for the reason of the reboot.<BR /> <BR /> Good luck!<BR /> <BR /> UMut<BR /> <BR /> Wed, 04 May 2016 18:50:00 GMT https://community.extremenetworks.com/t5/extremewireless-identifi/3935i-ap-reverts-to-10-01-03-0007-after-upgrade-to-10-01-04-0011/m-p/33751#M1210 Umut_Aydin 2016-05-04T18:50:00Z