Uplink is not working
We would recommend setting up an Ad Hoc connection. You can find instructions here:
This will help rule out that the wifi is the issue.
Still Doesn't Work?
If you are still having issue it may be your anti-virus or firewall that may be blocking the connection. To test this theory I would recommend disabling both to see if you are able to make a connection. If you are then I would recommend alternating them in an on/off state to figure out which one is causing the issue. Once you have pinpointed the issue you should be able to set up a rule to allow communication between the devices.
If you are able to connect then it has something to do with the wifi router. It may also be possible that your router has 2 WiFi channels with the same name which may be causing the issue. I'd check if your router has both a 2.4 GHz and 5GHz band? If so you may want to try renaming them so you can separately identify them. ie. Wifi 2.4 GHz and Wifi 5GHz
Verify your router allows both TCP and UDP traffic on port 6666.
If you do not have the ability to check your router your IT professional should be able to help you.