Changing the RDP port in Windows entails altering the port forwarding settings in Netgear as well, as the router won't automatically change the default RDP port to the new number.

Back in September of 2007, someone found that port 32764 was open on a Netgear router and asked on LinuxQuestions.org what the port was used for. No one knew back in 2007.

How to Change My Netgear NAT Settings to Open. Your Netgear router obtains an Internet Protocol, or IP, address from your service provider and assigns all connected devices a separate local address.