Hello,
There are 2 different types of CAT5e cable, a patch cable/ straight through and a cross over cable, however it doesn't matter which you use directly between FLX and your PC as the PC will automatically work out what cable is used and adjust to suit the setup (auto-mdix). However for the console and PC to "talk" to each other they will need to be on the same IP range for the Capture CITP protocol to function. For example with a subnet set to 255.255.255.0 they will both need to have an IP address of 192.168.1.xxx. I suggest the "xxx" to be 100 on the PC, and 101 on the console.
Hope that helps,
Edward