Just a sanity check: Did you turn off WebRTC and forget that you did? If you're using Firefox, setting both of the about:config flags "media.peerconnection.enab

Just a sanity check: Did you turn off WebRTC and forget that you did? If you're using Firefox, setting both of the about:config flags "media.peerconnection.enabled" and "media.navigator.enabled" to false disables WebRTC. UBlock Origin's "Prevent WebRTC from leaking local IP addresses" setting also might interfere even though I don't think it turns WebRTC off. The same applies to Brave's "Disable non-proxied UDP" option for the "WebRTC IP handling policy" setting.