Network Connectivity
Last updated
Last updated
When activating Zee Drive, when Zee Drive starts up automatically after activation, or during Zee Drive operation, network issues may cause the current operation to fail or lead to failed file uploads and empty folders. These error messages are the most common indicators of network connectivity issues:
The request was aborted: the operation has timed out or simply, The operation has timed out
The remote server returned an error: (403) Forbidden
A connection attempt failed because the connected party did not properly respond
The input data is not a complete block
An existing connection was forcibly closed by the remote host
The remote server returned an error: (407) Proxy Authentication Required
The remote server returned an error: (503) Server Unavailable
No connection could be made because the target machine actively refused it
Or during Zee Drive start-up, the busy indicator continues to spin but Zee Drive never completes starting up
The error messages may appear in the Zee Drive window, or, they may show in the .
The errors can be caused by a proxy, firewall, antivirus, VPN, DNS or ISP blocking or interfering with access to the Zee Drive activation service.
In the case of geolocation blocking ensure access is permitted for Ireland and Netherlands, which is where the Zee Drive activation service is hosted.
For a proxy or firewall, try adding an exception for the HTTP URL (Port 80) that the Zee Drive client communicates to the activation service over:
http://zeedriveniallactivation.cloudapp.net
The above URL is used by Zee Drive during activation, start-up and operation to retrieve subscription configuration information. If Zee Drive cannot access that URL then it will lead to a failed start-up or failed operation.
If you experience network connectivity errors when accessing Zee Drive mapped network drives (leading to empty folders or failed uploads) try adding these URLs as exceptions on your firewall and proxy. These are the URLs that Zee Drive communicates with Microsoft 365, Entra ID and SharePoint Online over. The URLs are all HTTPS (Port 443):
https://login.microsoftonline.com
https://*.sharepoint.com
In the case of the SharePoint URL, the * can be replaced with your SharePoint tenant name e.g.
https://contoso.sharepoint.com and https://contoso-my.sharepoint.com
Check the rules on your firewall IPS as they may be blocking Zee Drive from communicating over the network.
For an anti-virus, try adding an exception for the ZeeDrive.exe executable in the folder:
c:\Program Files\Thinkscape Zee Drive\[version number]\
Try disabling IPv6 in the network adapter properties if you receive the errors The operation has timed out or An existing connection was forcibly closed by the remote host.
Your router may have an out of date or faulty DNS cache. Try restarting your router.
A Wi-Fi connection that takes time to establish when the computer starts up may cause Zee Drive to timeout when starting up. If this occurs, open Zee Drive from the system tray by clicking the blue Z icon then click the blue link on the Zee Drive subscriptions status screen to retry the startup after the Wi-Fi connection has been fully established.
SharePoint Online supports only TLS 1.2 - if the local computer is not configured for TLS 1.2 then SharePoint Online will terminate connections with the error An existing connection was forcibly closed by the remote host.
A faulty memory card reader is attached to the computer. Remove the card reader.
Your DNS server may not be resolving domains to their correct IP addresses. Try updating your WiFi adapter to use a .