Hello, I just installed a new router and wifi and have started having FP issues. I am having trouble connecting to 70% of players in Medieval siege lobby. I forwarded port 16000 UDP in router and also UnPn option is enabled in the settings.
What else can I do ?

Disable UPnP again and make sure, that your local ip-address matches the ip-address you forwarded in your router. Then reboot your router (simple unplug and replug the power cable) and your problem should be solved.

HI Chris, I disabled UpnP in router still problem persists. Attached is port forwarding snapshot in my router. Please check.

I set my static ip as 192.168.1.150

The problem is the remote host ip-address in your screenshot. The field must be left blank, else it will only accept incoming connections from 192.168.1.150. This won't work. ;-)

Thanks I changed, it works now :-)

Glad to hear you got it fixed. You are welcome.