Hello. I installed your firewall, and as soon as that happened, My NAT was closed again. I tried looking at Comodo’s guide, and it didn’t work for me. I have the latest version. Please help me. Thank you!
You mean you need to open a one or more ports in the firewall? Read the following.
To open the port TCP 1723 for example
First step is to determine the MAC or Physical address of you network connector. Go to Start → Run → cmd → enter → a black box will show up and enter the following → ipconfig /all (notice the space before /all) → enter → now look up the Physical address and write it down.
Notice that Physical address = MAC address
Firewall → Advanced → Network Security policy → Global Rules → Add → fill in the following:
Action: Allow
Protocol: TCP
Direction: In
Description: Incoming Port
Source address: Any
Destination Address: Choose MAC address and fill in the found MAC/Physical address
Source Port: Any
Destination Port: 1723
Then push Apply → Now make sure that the new rule is somewhere above the basic block rule(s) as the bottom (the block rules have red icons); you can drag and drop the rules → Ok.
Thanks man, I’ll let you know if that worked out for me 
Didn’t work…
Can you show me screenshots of the firewall logs and Global Rules you are using?
The logs can be found under Firewall → Common Tasks → View Firewall Events.
The Global Rules can be found under Firewall → Advanced → Network Security Policy → Global Rules.
Can you tell me how the rule for incoming traffic is? Report like I did in the above.
I am afraid that I don’t fully understand that question. Sorry about that. O0
Let me rephrase that.
You made a rule for incoming traffic from the XBOX. Can you post the rule you made in the same way I did in my first reply.