Since 203 is often a "Non-Authoritative" error, bypass any VPN or proxy to see if Google Drive works directly on your local network.
Encountering "Error 203" in Google Drive can be a frustrating roadblock, especially when you're in the middle of a workflow. While it isn't the most common error, it typically points to a breakdown in communication between your device and Google's servers.
In most web-based environments, including Google Drive, Error 203 is often tied to the status. This means the request was technically successful, but the information you’re receiving has been modified by an intermediary—like a proxy server or a firewall—instead of coming directly from Google's origin server.
Other software on your computer may be competing for the same memory Drive needs to operate.
