Setup: So I have a second NIC card in my dedicated BI Win10 PC. The NIC on the motherboard is connected to a switch (sub-net 1) that has access to the router/modem supplied by my internet provider and therefor has access to my home LAN and the internet. The NIC pci card is connected to a POE switch (Sub-net 3) that all of the IP cameras are connected to. This switch is not connected to the router/modem. On a different floor in my house I have another Win10 PC that has dual NICs on the motherboard. One is connected to the switch (sub-net 1) used for the home LAN and connection to the internet. The other NIC is connected to the POE switch (sub-net 3) that is connected to the BI Computer and all of the IP cameras. This allows me to access the IP camera's web page without having to go upstairs and get on the BI computer. I also run UI3 on this computer to view BI. Question: Which NIC is the UI3 connection using? And therefore which sub-net/switch is UI3 using? Is there a way I can figure this out? The reason I ask is that sometimes UI3 really lags, frame rate drops to 1 or 0, and I get the dreaded orange clock in the upper right of the screen. I am wondering if this is because the UI3 connection is fighting for bandwidth with the 18 cameras on the sub-net 3 suppling video at 15 FPS to BI. All switches are gigabit switches.