SekhenB
Jellyfin
Or just a file share and mount it in Windows as a network drive. Then view the content with VLC.
That’s a horrible installation. Send them the picture and ask them to remedy ASAP.
In the summer, I’m dumping it outside.
In the winter, I’m heating my garage with it.
Has worked great for many years now.
Wireguard doesn’t answer unless you hand shake with a valid package.
There are three 512 bit keys.
And you can put ssh behind it with ssh keys.
The extra later of defence is quite significant.
No “actual user” is blocked by fail2ban. They auth with keys, can’t really fail.
Blocking after three fail is very reasonable and effective. It also keeps the logs noise down.
Don’t use the built in crap.
Get a Raspberry or other tiny computer and set it up as a “smart TV box”.
You say you can’t invest in a solution. But this problem require you to throw money at it to go away.
Check the cables for damages, or tight bends, that could cause a lot of packet loss.