Multiple Gateway error message

[bklyn1028]

I have had a static ip address for years. I host games online. My grandson now has a static ip address (he hosts his own games)..My pc is wired, his is wireless - same router.
Port Forward checker said "your port is unreachable" this morning. When I re-configured the static ip address, I now get a "multiple gateway" error message, and the end says do I want to continue. If I say yes, the port is still unreachable. I can get on the net, but can't open any ports. Is there a way to configure 2 pc's with static ip addresses on the same network with one router?

 

[JackMDS]

A specific Port can be opened only toward one IP.

If you need two computers on the same Network using forwarding, you have to be able to change the ports that need to be opened on the second PC. That means changing the working ports in the Software application/server.

As and example, in case of two ftp servers one computer is using the default ports of ftp 21/22 and on the second computer the ftp server is configured to 60000/60001.

 

[bklyn1028]

Each pc uses it's own ports. They do NOT use the same ports.

 

[seepy83]

What's the specific error you receive about multiple gateways? Posting the results of an "ipconfig /all" from the PC that's not working may help diagnose your problem.

 

[bklyn1028]

This is the exact message:
Warning- Multiple default gateways are intended to provide redundancy to a single network(such as an intranet or the internet).
They will not function properly when the gateways are on two separate, disjoint networks (such as one on your intranet and one on the internet).
Do you want to save this configuration?

 

[seepy83]

Do you have multiple gateways configured? On a typical network, you would only have 1 gateway (the IP address for your Router).

Again, copy and pasting the result of "ipconfig /all" from the PC that's not working may help diagnose your problem.

 

[imagoon]

You have multiple nics or multiple default gateways configured on the machine. For the desktop machines, this generally an invalid configuration.