Log in and monitor Balance 30 WAN links

I am trying to remotely log in and monitor the strength of the LTE signal on my Peplink Balance 30.

wget -O log_in_result.html --save-cookies cookies.txt ‘http://10.1.1.1/cgi-bin/MANGA/index.cgi?mode=submit&option=login&username=admin&password=ThePassword

it spits back a page that tells me I need to use a browser with javascript support.
The page I actually want to monitor is the

http://172.16.33.254/cgi-bin/MANGA/wanstatus_v2.cgi?wanlink=3

which will tell me my LTE signal levels, but I can’t use that until I get an auth cookie.

Has anyone else managed to trick the web interface into giving the log in?

Hi,

You may manage your device via InControl2. Please take note 6.1.0 is the minimum firmware version.

I reset my username and password to log in to the Web Admin for my Balance 30 but now I can’t get in using either the old or new credentials. Does anyone now how to resolve this?