Weather Underground ID failure

I’m unable to associate my sensors with Weather Underground. When I first set them up, the option to register with Weather Underground returned errors, and they’re continuing now when I try to go revise my registration.

Also, the URL for wunderground ingestion appears to be broken: sensors-ingest.wunderground.com is returning a 404

Any luck with this? I’m also trying to add my AQ data to an existing PWS. I can’t actually find any record via Google of sensors-ingest.wunderground.com aside from this community …

The functionality to connect a PurpleAir sensor to an existing Weather Underground account is currently not available. More information is found here: Can I Connect My Sensor to Weather Underground?.