First, try these general troubleshooting steps found at the link below:

https://ithelp.glendon.yorku.ca/faq/index.php?action=artikel&cat=26&id=79&artlang=en&highlight=airyorkplus

I've checked and my account works but I  still can't connect on my Windows Device

Potential Problem: I was connected just fine recently but now I can’t connect. / I changed my password recently and now I can’t get internet on AirYorkPLUS 

1. Answer: Try resetting your connection on AirYorkPLUS by deleting and re-adding the network.
   1. To forget the network follow these steps:
      1. Open your Start Menu
      2. Go to Settings, then Network and Internet
      3. Click Wi-Fi in the left sidebar
      4. Click “Manage known networks”
      5. Select “AirYorkPLUS”
      6. Click "Forget"
      7. Exit settings  
   2. Re-select AirYorkPLUS from the available Wi-Fi Networks and use your Passport York credentials to reconnect.

Potential Problem: I tried deleting and re-adding the network but it still won't let me connect

1. Answer: Try deleting the network and re-installing the AirYorkPLUS Setup application before reconnecting
   1. To forget the network follow these steps:
      1. Open your Start Menu
      2. Go to Settings, then Network and Internet
      3. Click Wi-Fi in the left sidebar
      4. Click “Manage known networks”
      5. Select “AirYorkPLUS”
      6. Click "Forget"
      7. Exit settings  
   2. Download and re-install the AirYorkPLUS setup client from Computing’s website to ensure your wi-fi card is properly configured:
      
      http://student.computing.yorku.ca/airyorkplus/
      
      
      
   3. This may give a pop-up in the bottom-right corner of your screen that says:
      "Password required for AirYorkPLUS, Connect?"
      1. Click on the pop-up and when presented with the windows security credentials screen, enter your Passport York credentials to connect to the network.
      2. If this pop-up does not appear or if you don’t click it in time, continue to the next step.
   4. Click the Wi-Fi icon and select “AirYorkPLUS” then enter your Passport York Credentials.
   5. You will likely receive a message saying:
       “Continue Connecting? If you expect to find AirYorkPLUS in this location, go ahead and connect. Otherwise, it may be a different network with the same name.
      1. Click “Connect” 

 If you are still unable to connect, fill out the AirYorkPLUS problem report form found at the following link:
https://www.glendon.yorku.ca/its/ppy/help-resources/forms/glendon-airyorkplus-request/