Relentless "Authentication Required" popup


#1

Has anybody else had a problem with a popup constantly appearing saying "“Authentication Required”?
Realm: Proxy Server http://127.0.0.1 (etc), which indicates the local machine. Keeps asking for a Username and Password. On a Mac running Mojave 10.14.6.


#2

Yes! It’s very annoying. And sometimes, it keeps asking me to submit error report.