If you experience the error code S7363-1260-00002E18 while watching on your Mac computer, it typically points to a DRM issue. Follow the troubleshooting steps below to resolve the issue.
Close media players such as YouTube, iTunes, and QuickTime.
In the upper left corner of the screen, select the Apple icon.
Select Force Quit.
Select any media players that are still running and select Force Quit.
Quit Safari, then restart it.
Try Netflix again.