Plex app on IOS won't show Media Player on my laptop



is anyone having the same issue? I can't use my laptop as a player anymore. The laptop is plugged with a VGA cable to my television and Media Player is installed on it (latest version). My iPad is not showing Media Player when I'm on the Plex App. However Firefox on my computer does. Is there a bug or a setting to change? I'm using Plex Server on a Synology and it's up to date.
Thanks for your explanation


Still not working. Does anyone else have the same problem?