Are you running this from a NAS? I am using a drive directly connected by USB but am contemplating NAS although my house is networked with Cat6.I have lotr uhd and I get no stutter using WiFi. I am on .90 beta.
But sometimes my mkvs just freeze up.
I re-ripped LOTR EE UHD with latest version of makemkv and then updated Zidoo as i was running the original fw which was .4 i believe, hence my question as i have skipped a few versions that corrected these types of issues. My other UHDs ran fine on the old firmware just not LOTR.