The default Global Rules changed from being alerted for incoming traffic on a per case basis to a general block of all incoming traffic (default Stealth).
There are two solutions to this situation:
- Restore the old way by using the Stealth Ports Wizard (Firewall --> Common Tasks) and choosing "Alert me to incoming connections - stealth my ports on a per-case basis" --> Finish (see first image)
You will now be alerted again when there is incoming traffic for the program.
- Try the new way and open the needed ports in Global Rules following:
To open the port 1723 TCP and UDP 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:
Protocol: TCP or UDP
Description: Open ports for p2p program
Source address: Any
Destination Address: Choose MAC address and fill in the found MAC/Physical address
Source Port: Any
Destination Port: 1723 (see image 2)
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 (see image 3).