F4-425 speeds cratered after TOS7 upgrade. Every protocol, anyone else had this issue?
TerraMaster F4-425, upgraded to TOS7 this morning, and ever since, transfer speeds off the NAS have been capped at around 300-500KB/s over both SMB and NFS. This is on a gigabit network that was working completely normally before the upgrade. Two single-disk Btrfs volumes, Seagate IronWolf 12TB drives, no RAID, not using AD or domain, just local users.
I've spent a lot of time trying to isolate this and I'm kind of stuck. The NAS itself is basically idle during a transfer, 1% CPU, 1% load, memory sitting around 21%, so it's not resource starved. Network interface reports a clean 1000Mbps link, standard 1500 MTU, no errors. Traffic Control and Proxy Connection are both completely empty, no rules. No scheduled power on/off tasks either, which I know has caused throughput issues for other people on TOS7.
What's really throwing me is that it's not even protocol specific. SMB, NFS, and just downloading a system report through the regular web interface (so plain HTTP, nothing touching my actual data volumes) are all stuck at the exact same speed. Disk activity during a transfer is choppy, bursty little spikes rather than a steady read too.
Separately, and maybe unrelated, one specific shared folder throws a "failed to get Domain users" error and fails with "Operation Failed!" on any permission change, even with a brand new test user, despite Domain/LDAP being fully disabled. Other shared folders on the same box save permissions fine. Got a support ticket open for both of these, no response yet.
Given it's the same speed across three completely different protocols and the NAS isn't struggling for resources, I'm guessing it's something at the driver or system level rather than anything in the GUI, but I've run out of settings to check. Anyone run into this after a TOS7 upgrade? Did anything actually fix it for you?