mine haven’t failed but it failed to mount from time to time. if you have production environment to run consider taking a look at backblaze drive failure report.since i have nothing important on the drive i will keep it running until its final day though

i have 4tb version of exos drive and read error rate is going crazy after more than 2 years running 24/7

you may try this: 1/make sure jellyfin is actually running and there is no error in logs and firewall is not blocking inbound connections

2/double check LAN IP/port jellyfin service running on and make sure the device you want to connecting to jellyfin can reach that IP (simple icmp ping is a good start)