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9.400 bricks connected APs!

Hello,

just a heads up warning regarding the soft released 9.400.


Just installed it on the gateway and all connected APs that were using VLAN tagging and bridging communication to VLANs got bricked by the AP firmware update.

If the AP is not using VLAN tagging and wireless networks just use bridging to AP LAN then it works. If VLAN tagging is used then after the firmware update the AP never finishes booting and gets stuck while trying to get IP address from DHCP in an never ending loo (AP50). Got a confirmation from a customer where it bricked their AP30s. For AP50 and 30 it is possible to use the flash tool to get them back to working state. Unfortunately AP55c gets bricked totally as there is no flash tool for it and after it gets the 9.400 firmware update and is deployed with VLAN tagging enabled it basically dies and never finishes booting or does not even get to a point of requesting the IP address from DHCP and gets stuck rebooting over and over again.

After rolling back to 9.355 (restore from tape) and reflashing the APs using the recovery tool (when possible) wireless works fine.

Looks like some nasty bug that slipped through QA... again :(



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