I just received a GL.iNET GL-MT300N-V2 router and qDslrDashboard isn't detecting it.

I've updated the router to the latest firmware and have installed the ddserver plugin v 0.2-14. It's interesting, the plug-ins screen doesn't give any options for ddserver other than "Uninstall".
I connected my Android phone (Samsung Galaxy S21) to the router's Wi-Fi, told it to stay connected despite the lack of internet, and then launched qDslrDashboard. I try and try, but can't get qDslrDashboard to connect to the server. Just the below messages:
Searching for DDServer
DDserver not found, connecting to IP: 192.168.1.1
List connected DSLR at 192.168.1.1
Any advice?