Web login suddenly stopped working, but can ssh in OK (same password)

kennethrc · 2018-05-15T23:33:51.371Z

I have an AR-750.

I had my device all set up, and it’s been working OK. I had a password on the web login that worked up 'till I’d inserted a Micro-SD card and rebooted. Now I can no longer log into the web interface (I get “Input is wrong” in red). But I can login via ssh using that same password. Apparently no other setting has been changed (it’s still connecting to a nearby WPA2 network, and connecting to my OpenVPN server after that).

Is there a way to clear the web login password via the shell, so I can get back into the web admin interface?

kennethrc · 2018-05-16T00:24:43.218Z

Huh. Now I get “unknow error” in red.

Does having an SD-Card in the slot at boot have any special significance? I wanted to just make it available to share, and right now it’s totally blank (Fat32, 32GB).

alzhao · 2018-05-16T03:15:30.843Z

The SD storage should not affect the UI.

What browser are you using? can you try a different one?

kennethrc · 2018-05-16T03:43:30.990Z

It’s NOT a browser issue. (FWIW, I did try another one, and as expected it made no difference.)

How can I clear the password that the web login uses? I can ssh in just fine.

I think what did it is I’d tried to enable “WAN access”, it was the last thing I’d changed before the reboot … how can I clear that via the shell?

Also, you guys should REALLY stop hiding passwords in the dialog boxes, or at least have a “Show Password” option.

alzhao · 2018-05-16T04:35:57.372Z

We are designing the new UI and there is a show password.

I think it is when you change wan access, there is a password filled automatically in the password box and you updated by accident.

Here is what you can do.
The password is in /etc/config, you will see a long string. It is SHA256 of the password. Search Google and generate a SHA256 hash of a password and change it using ssh.

For example,
The SHA256 of 123456 is 8D969EEF6ECAD3C29A3A629280E686CF0C3F5D5A86AFF3CA12020C923ADC6C92

Change the password to 8D969EEF6ECAD3C29A3A629280E686CF0C3F5D5A86AFF3CA12020C923ADC6C92
and use 123456 to login

kennethrc · 2018-05-16T13:18:11.050Z

Ok, so I found the file /etc/config/glconfig .

I found the password entry under “config service general”, and changed it to your example password. Didn’t work, I still couldn’t login via the web interface.

So maybe it was too small a password, so using this SHA256 generator I’d found online, which generates the same SHA value as your example value for the same input: https://passwordsgenerator.net/sha256-hash-generator/ I tried another password. Still couldn’t log in.

I had to delete the “password” and “code needed” entries in /etc/config/glconfig . That brought be back to the “English/Chinese” dialog when I tried to log in, so I was able to reenter (and confirm) my password there.

I don’t know what happened, but the /etc/config/glconfig file was the key to getting it worked out. Thanks.

alzhao · 2018-05-17T04:13:32.489Z

as long as you solved.

Thanks for updating.