Thanks for your help. I have a working password on the SX88 V2, used among other things for ftp connection with my PC. My PC also connects without problem to my TV. So I don't see an obvious problem on the PC side of the equation.
Returning to the SX88, when I click "OK" on the IP address of my PC it does not expand. Not sure where security could be blocking a pop up.
Curious to know if you are getting the mount set up to work with an SX 88 V2, or another Octagon.