Cannot Connect to Internal Server: java.net.BindException: Cannot assign requested address: getsockopt

Symptoms

When attempting to connect to an internal server using IDEA or PyCharm in a VPN-connected environment, users may encounter the following error:

java.net.BindException: Cannot assign requested address: getsockopt

This issue does not appear when connecting to the server using terminal or Visual Studio Code. This bug occurs while connecting to internal servers within a VPN environment.

IDE Version: IDE 2024.3.3

Cause

The issue arises due to the system's inability to connect the requested internet protocol address (could be IPv4 or IPv6).

Resolution

To resolve this issue, users can take the following steps:

1. Add -Djava.net.preferIPv4Stack=true in IDE | Help | Edit Custom VM Options.
2. After completing step 1, restart the IDE.

If the problem still persists, consider changing your VPN settings. For this, you may need to contact your VPN vendor.

Ref: Unable to check for updates (Cannot assign requested address: getsockopt)