Login Failed after Firmware Upgrade

Hi, I upgraded the firmware from 17.5.12 mr2 to 18.05 but now i can not access the web admin. Only user portal working on hidden mode browser. What can you advice me to reach the admin interface?.also i couldnt login with ssh.

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[edited by: emmosophos at 4:40 PM (GMT -7) on 6 Sep 2021]

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  • Please connect device with serial console cable and rollback to previous firmware version 17.5.12 mr2 then 17.5.12 MR12 upgrade to 17.5.16 MR 16. 

    If Device is in the failsafe mode, you might…

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  • Hi,

    no, because you need to login to roll back to the previous version. Also I don't think you can go from v117.5.12 to v18.0.5. From memory you need to be at least on mr14 or mr15.


    V18.5.x - e3-1225v5 6gb ram with 4 ports - 20w. 
    If a post solves your question use the 'This helped me' link.