What does it mean when it says unable to connect to server?

This error means your device cannot connect to your provider’s mail server. It can be anything from no network, intermittent or unstable network, or even a good internet connection in general but inability to reach your specific provider’s mail server.

Can’t connect to server but have WiFi?

If the Internet works fine on other devices, the problem lies with your device and its WiFi adapter. On the other hand, if the Internet doesn’t work on other devices too, then the problem is most likely with the router or the Internet connection itself. One good way to fix the router is to restart it.

How do I fix server not connecting?

How do I fix the Server not found error in Firefox?
  1. Check your browser and Internet connection.
  2. Consider using a different browser.
  3. Check Firefox proxy settings.
  4. Check Firefox proxy settings.
  5. Disabling DNS Prefetching.
  6. Check your antivirus.
  7. Restart your modem/router.