https failure in IDEA

Any type of https activity (Gradle, plugin installs, etc) fails in IDEA with the error: "Software caused connection abort: connect". My company does use a CA root cert and I have installed it in all jre's (idea's included) and added into IDEA's server certificate in settings. Does not fix the issue. Issue occurs on any network, not just the company network where the root CA cert is necessary.

This renders IDEA unusable as I can't instantiate projects with dependencies on Gradle or any library via https.

IntelliJ IDEA 2017.3.3 (Ultimate Edition)
Build #IU-173.4301.25, built on January 15, 2018
Licensed to Arbitration Forums / Bill Pfeiffer
Subscription is active until July 8, 2018
JRE: 1.8.0_152-release-1024-b11 amd64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Windows 10 10.0