Many thanks for the input on this - it's certainly given me clues about what to check for. I've checked and none of the cameras are cloned. The 10G NIC is a TP-Link TX401 and I've got hardware offloading enabled on everything. In fact, I've now got two active NICs in there. The 10G is dedicated to N...

A not-so-good news update on this: I decided to turn off Blue Iris and install DW Spectrum, pulling feeds from three cameras. Remaining bandwidth is 1.87Gbps and I can copy files to the server at 220MB/s So this points to some kind of issue with Blue Iris. Maybe a compatibility issue with Windows Se...

I've put another network cable from the switch that hosts the cameras (and other stuff), into a spare NIC in the BI server (in fact I tried two other NICs in it). Also set up traffic segmentation (D-Link switch), to isolate the two camera ports and the other port going to the server. Restarted every...

I've tried downgrading to 5.4.9.18 but had similar results. If anything the remaining bandwidth dropped by about 100Mbit/s. The BI stats show cameras using 720kB/s, which is about 5.6Mbit/s, but I'm seeing bandwidth loss on the 2.5Gbit link of over 300 times that amount. Windows Server Resource Moni...

I have a fairly complicated network setup for a home, but Blue Iris is killing the bandwidth on the 2.5Gbps portion of the network (all wired, no WiFi) BI5 is installed on a server running Windows Server 2022, which has a 10G ASUS NIC running in 2.5G mode. This server is running as a NAS, VM host an...