@Veez I understand you are having issues with getting your Azure Notification Hub back online after your Azure subscription was disabled. I have helped a few customers in the past with similar issues and below are what I would suggest trying.
- Check the Namespace: Ensure that the namespace you’re using is correct and active. You can check the availability of the namespace using the Azure CLI command az notification-hub namespace check-availability.
- Regenerate Keys: Sometimes, regenerating the keys for the namespace authorization rule can help. You can do this with the Azure CLI command az notification-hub namespace authorization-rule regenerate-keys.
- Minor Change to Namespace: Some users have reported that making a minor change to the namespace and then changing it back can help to reset the state of the resource.
- Check for Proxy Issues: If your server is behind a proxy, it might be blocking the connection. You may need to configure your server to bypass the proxy for Azure connections.
- Upgrade the Namespace: Upgrading the namespace to a higher tier and then testing can sometimes resolve issues.
If the above 5 steps do not work, please reply back here so we can assist you further.