Network is all 1 Gbit wired, everything goes through a single router (Archer AX50). Router is connected to my fiberbox, also 1Gbit internet.
Speedtest both on Unraid-box and on computer gives around 1 Gbit. Copying a file from unraid to PC gives good speeds ( https://i.imgur.com/AoatqRH.png )
Copying a file from PC to Unraid via 1 Gbit cable network gives me around 12-18 MB/s.
As you can see from this picture ( https://i.imgur.com/SMBBoUv.png ) while copying i cant see any writes/reads on the cache-drive while copying, although sometimes I see a spike of like 300 MB/s writing for a few seconds.
Settings for the share ( https://i.imgur.com/5UWp13g.png )
This ( https://i.imgur.com/LAMBb4O.png ) shows that the file is actually written to the cache-drive.
It used to work fine until sometime recently, nothing big has changed. I trid copying to unraid through 3 computers, all with the same problem, also through wireless.
Tried upgrading from 6.10.3 to 6.10.5, rolling back. Reboots in between. Took array offline and started it.
Any ideas?
Diagnostic file available as attachment
unraid-diagnostics-20221226-1039.zip