New FS install on Windows 11 not resolving DNS, giving -205 error on splash screen

[Shae Shadow]

I have the older 6.6.17 release working fine on an older Win 10 PC. I'm setting up a new Win 11 PC, and whether I install 6.6.17 or the new PBR-friendly release that just went out, I cannot log in.

• Attempting to log in will give me an error that DNS cannot be resolved to agni.secondlife.com, etc..
• The Big splash screen in FS itself times out with a "cannot connect" error and a -205 error code.
• Weirdest of all, every time FS gets into this state, my internet connection drops out entirely (in Win 11 - the "not connected to internet" icon).

Note that I can log into secondlife.com, etc. just fine. It's only FS itself that seems borked.
I have tried "allowing" all the firestorm executables, dullahan_host, etc. through my Win 11 firewall and through Malwarebytes, exactly as I've done long ago on my Win 10 PC that's working fine with FS.
I have tried changing my Win11 DNS servers to the Google ones for IPv4 and IPv6.
Absolutely nothing at all seems to work.
Any ideas? Any tips?

[Shae Shadow]

Turns out it was attempting to run FS through a wireless connection. With an ethernet connection everything's fine.