Sync items will not transfer
I have a new laptop, which I purchased mainly to watch videos during an upcoming trip overseas. I loaded the Windows Store Plex app, and had no trouble getting connected to my Plex server. Unfortunately though, after repeated attempts I have not been able to sync a single item.
To start with, my server and player apps are all up to date, as best I can tell, and are signed-in to my plex pass account. I can see the server from the laptop just fine. I can stream videos from the server just fine. I can see my entire media library, and set up a sync just fine. I can even see the sync progress as the files are transcoded, but the files do not transfer. The only error message I get is either Unknown Error or Network Error so I have no idea where to start. Considering everything else works, so clearly the network is too.
My setup is fairly simple. My plex server is running on a not that old (i5) PC in the basement running Windows 10. The server was just updated to version 18.104.22.16803. This is my primary plex server, and it is NOT shared outside of my network. I also have a 2nd plex server running on my synology NAS box which I do share externally for family to use. The laptop is running Windows 10 with the windows store app, version 3.2.20-2599c77. Everything is connected to my home network, the servers are hardwired, the laptop is wifi.
Whenever I try to sync everything works up to the point it should transfer the file to the laptop, then nothing happens and I get the vague error message. I have tried both servers with the same results. I have of course tried different videos. My first choice for storage on the laptop was a large SD card, but I have also tried saving to the default location. I have tried setting up the sync from the laptop, and from the server. Also, rather annoyingly the laptop will repeatedly tell me that media is ready to transfer even though it never will. I have tried just about every reasonable iteration, and nothing seems to work.
Please, I need help or advice to figure this out.