You are on fibre / cable / dsl? Please make sure you are not using a data connection such as 3G / 4G / 5G.
Furthermore, please double check whether your port forwarding rule points to the local IPv4 address of your computer. If you still cannot get it working, try changing the port to 27000 in both, your router and your Voobly options.
Start > Run > type „cmd“ > click on „Command Prompt“ > type „tracert client.voobly.com“ into the Command Prompt Window and wait for the traceroute to complete.
Then upload a screenshot of the Traceroute result here at the forums (click Reply instead of using Quick Reply).
Then we missed something. Please change the port to 27000 UDP again and show me once again the most recent screenshot of your port forwarding rule and the Voobly options with the updated NAT-T port, as well as the output of Start > Run > type "cmd" and hit Enter > type "ipconfig" into Command Prompt.
I could not play at voobly as it shows fp most of the time. If I play 2v2 game after reconnecting it works but not every time
Furthermore, please double check whether your port forwarding rule points to the local IPv4 address of your computer. If you still cannot get it working, try changing the port to 27000 in both, your router and your Voobly options.
Then upload a screenshot of the Traceroute result here at the forums (click Reply instead of using Quick Reply).