Issue with Connection Security Rule and PSK: Unable to Ping or Send Data

Question

Hi everyone,

I'm currently facing an Windows issue with a connection security rule I've set up to authenticate communication between two endpoints using a Pre-Shared Key (PSK). Here’s the setup:

• My Computer: 192.168.81.28
• Other Endpoint: 192.168.81.15

I've configured the connection security rule on both ends to use the same PSK for authentication. However, after applying the rule, I’m unable to ping or send any data between the two endpoints. I’ve double-checked that the rule is active on both machines, but something seems to be blocking the communication. Without enabling the security connection rule, I can ping or transmit data even though I had enabled firewall rules, so that reason could be moved aside

Attached are screenshots of the rules I’ve configured on both systems. Is there anything I might be missing or overlooking that could cause this issue? Any insights or suggestions would be greatly appreciated.

Thanks in advance for your help!