Is there a way I can confirm where the problem is? (sorry still fairly new at this) I just bought these cables and they are all CAT6 from Amazon. My router is a Linksys - AC1200 Dual-Band Wi-Fi Router - Blue. I have no other devices connected to the router except the Pi4 and my Mac. UPDATE: I restar...

Hello! I just set-up OMV on my RPi4 4 GB. I have a 2TB WD Red drive (ext4) in a powered enclosure connected to a USB 3.0 port on the Pi. I am sharing over NFS on my Mac. However, I am getting no more than 9Mbits/sec of read/write over ethernet (not wifi) I tried your method to isolate cpu0 like this...