IntelliJ IDEA Ultimate 2017.2 keeps asking proxy credentials

Question

I am behind an enterprise firewall, have checked "Auto-detect proxy settings" in System Settings -> HTTP Proxy. I entered the correct credentials and checked "Remember". I know the credentials are correct, as I am able, for example, to download and install plugins.

However, IntelliJ keeps asking me periodically to re-enter the proxy credentials. Why?

Answer 1

Raising a case they said the SSL certificate gets replaced via the proxy.

I was baffled as it works for some people and not others. People sitting next to each other!

Essentially the proxy gets in the way (from all non-JDK reports) and this is why you can't see the Last Seen dates in the site for all licensees.

The KB: https://intellij-support.jetbrains.com/hc/en-us/articles/206544889-SignatureException-Signature-doesn-t-match-or-Signature-length-not-correct-got-256-but-was-expecting-512

Solution:

The only alternative is to use the Offline Activation codes for each user who will need to login to https://JetBrains.com and get their individual Offline Activation code. Then activate the software offline. Help Menu > Register.

Answer 2

For me the solution was changing proxy setting to "No Proxy" from "Auto-detect". Idea retrieves proxy settings anyway from Windows.

Version:2019.3