Upgrading to 2020.2 breaks IBM Db2 (JTOpen) connectivity

Yesterday I was able to connect to my IBM Db2 database using the IBM Db2 (JTOpen) driver perfectly fine. Today when I opened PHPStorm, I was prompted to upgrade to 2020.2. Now I can no longer connect to my IBM Db2 database.

After the upgrade, I'm on:

Build #PS-202.6397.115, built on July 29, 2020.
Runtime Version: 11.0.7 + 10-b944.20 amd64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.

The exact error message I'm getting is:
[2020-07-30 09:39:37] [08001][-99999] The application requester cannot establish the connection. (Connection was dropped unexpectedly.).

I can ping the host perfectly fine. However, telnet is disabled on this particular machine, so I can't verify the port is open. However, I'm nearly 100% certain nothing has changed on the server since last night. If the port has been disabled/changed, I would be experiencing a lot more important issues than just my IDE.

Any ideas on how I can rectify this?


Could you please contact us via Help | Contact Support and attach the logs archive using Help > Collect Logs and Diagnostic Data? We would need to take a closer look at this.


Okay, I filled out the "Contact Support" form. Should I provide the link here? 


Thanks! No, we see it: we'll reply you back after we check everything.


Have same issue but in datagrip, any news on this?


As every case could be individual, I would suggest collecting the log files pack and contact the support team directly.


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