GL-X300B Dashboard not available in 'extender' mode

So I put my router into "extender’ mode and sure enough, it grabs an IP from my router…but I am unable to access the dashboard on that new IP. Thus making the device inaccessible. I checked the MAC address of the unit and compared it to that of the IP that’s issued from my router and it’s the correct one, however still not accessible.

Any tips to get back into the device without a factory reset?

10-second hold on the reset button doesn’t do anything either…FML

Are you able to connect to the router’s wifi and are you able to ping the router?

I do not work for and I do not have formal association with GL.iNet

I’d wonder if X300B worked different from Beryl.
Beryl says:
1

GL-inet are no native English speakers, so I expect some inaccuracy in English texts - I read “may not connect” as “cannot connect”.

edit: BTW: 10s may just be too long - try 4 as they say or 5.

Please see this thread, which explains Extender network mode using Layer 3 relay routing:

I do not work for and I do not have formal association with GL.iNet