Did you ever figure this out? After 7 hours and reading stack overflow, I finally got my answer. I happen to have a windows laptop and had PgAdmin installed but our app is linux. I spun my database instance up on docker and couldn't connect to save my life. I was trying to run prisma migrations and trying to connect via DBeaver to no avail. Out of a hunch, I found that if you have PGAdmin installed under windows there's a service that runs in the services snap-in. as soon as I disabled, I was able to connect. I thought for hours and hours I had a password issue b/c of the error message.