The "Connection with Remote Server failed" error on YouTube might be due to unstable internet connectivity or server issues. Try checking your network connection, restarting your device, or uploading the video at a later time when the servers may be more stable.
You can try checking your internet connection or resetting your router, as a weak connection can cause upload issues. If the problem persists, ensure that your software and drivers are up to date or try uploading from a different browser or device.
Ensure your internet connection is stable. If you're on Wi-Fi, try switching to a wired connection or move closer to the router. Try running a speed test to see if your connection is fast enough for uploading videos.