how to unblock the port

This is my Firewall Events. I think I have accidentally blocked the port that I need to have. Once the Comodo learned, how can I unlearn it ?

(:NRD) Any specific file that I can manually edit it to fix this ? (:NRD)

Thank you for your help.

Have a look under System in Firewall/Advanced/Network Security Policy.This is where you will find your application rules.Highlight the offending rule and remove it APPLY to close windows.



Are you on a network? Do you need to use file sharing between those computers?
Information on port 138, and more information here.


Hi and Thank you so much Matty_R & Ragwing for the input

This is really help me out :■■■■