zyxel usg20-vpn firmware upgrade path

rv3452
rv3452 Posts: 5
First Comment
edited May 2023 in Security

Hello, I want to ask if there is the best path to upgrade, or can I upgrade directly?

My current version is 4.16 and I need to upgrade to 5.36

I tried to upgrade directly, but my original account and password could not be entered

Can't get in even with the default account and password

I would like to ask everyone who has encountered upgrade problems, thank you

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