keyan17,
I have not set this up with any of the EOS cinema line but I dealt with the issue with my 1DX series bodies which I always connect via ethernet. The Canon instructions are NOT well written and if you are using Windows 10 it seems to create its own issues after updates but there is a work around to it.
If possible, go with an ethernet cable directly into your workstation which avoids the additional complication of dealing with a router. That is what I do with my HP Z840 and Z820 workstations. Once you do this, try using the automatic network configuration in the camera and then launch the Canon utility software on your computer.
The initial setup/configuration is very slow and will appear at times to be stuck but give it time (up to 5 minutes if I remember correctly). It will grab a dynamic address as part of the setup and once it completes write down this address and enter it as a fixed IP address in the camera network setup. This was 1/2 of the trick to getting it to work quickly and reliably with my Win 10 workstations because otherwise connection was very slow every time. The other half of the trick is to set the Canon software to NOT launch automatically but instead you should launch it manually after you start network connect for subsequent uses. After I went to this fixed IP setting and not launching software automatically, the problems that occurred after frequent Win 10 updates went away and the ethernet connection is a pleasure to use.
I often use three DSLR bodies at events (1DX, 1DX 2, and 1DX 3) and I transfer everything via ethernet. Until I figured out the trick of setting a fixed IP address it was a pain every time but now it is a quick and sure connection. And from the time I spent "googling" looking for a solution I figured out that apparently not many people use a direct ethernet connection because I found a lot of people asking questions but not finding solutions.
Good luck!
Rodger
EOS 1DX M3, 1DX M2, 1DX, 5DS R, M6 Mark II, 1D M2, EOS 650 (film), many lenses, XF400 video
