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[ktz392837]

I have read a few posts where upgrading the firmware can sometime scramble the Supervisor passwords that may stop access to some menus like TR69 can anyone advise on whether I am safe on updating from a very old firmware to a custom AAK24 firmware and resetting everything to default if there is an option as I will be reconfiguring from scratch?  Thanks

[j0hn]

Updating firmware won't.
Resetting it after might.

[highpriest]

Gone through 5 or 6 different firmware upgrades since I got my 8324 (currently running v28) and the supervisor password hasn't been touched. If you don't already know the supervisor password, I don't know if you can still retrieve it using the dumpmdm trick on later firmware releases (Zyxel may have addressed that loophole). So a full reset might not be a good idea.

[ktz392837]

Thanks I do know the supervisor password it is just the standard fixed one.

Is there a safe way to start configuring from scratch without endangering access?

I will be switching to bridge mode from router mode and want all the settings back to default/cleared.

Thanks

[highpriest]

Thanks I do know the supervisor password it is just the standard fixed one.

Just checked on my modem and the supervisor password is still visible in clear text in the output of dumpmdm. I haven't performed a factory reset though, so unsure if that makes a difference. I also don't have a spare so it is difficult to tell for sure.

Is there a safe way to start configuring from scratch without endangering access?

The safest way would be to not reset the device and go through each menu section and turn things off like I did.

I will be switching to bridge mode from router mode and want all the settings back to default/cleared.

Unless you've done a massive amount of customisation (things like VLANs and so on) it should be fairly easy to set everything back to default. Not very helpful I know, but I'm out of ideas!

[ktz392837]

I risked the firmware upgrade and it did change the supervisor password to a random 8 character string so i just used "echo $(cat varcsamu)” to get it back.  Lucky I guess.

[Alex Atkin UK]

As I understand it once you change the password it shouldn't mess with it, but left default it obviously does.