edge traversal

Edge traversal is a Windows Firewall setting that allows applications to bypass certain network restrictions, often used for peer-to-peer or direct communication. In Windows 7, enabling edge traversal for a program in the Firewall's inbound rules can sometimes resolve issues with COM port visibility in Device Manager. However, users have reported that after a shutdown, the COM ports may disappear again despite the setting being applied. This suggests that edge traversal alone may not permanently fix the problem, and additional troubleshooting steps may be needed to maintain port detection across reboots.