You need to run each port of the VPS to its own jack in the KSU. That means port 1&2 of the TVA go to jack 7&8 of the 824. You cannot split pairs. While admittedly I haven't read this thread in its entirety, I'm almost positive that's your problem.

Like I told you on the other forum....
Although it has physical capacity for more, the TVA50 only supports a maximum of 2 APITS ports. The only way you can use more than 2 is with DPITS (not an option with the 824) or inband. Whether inband would even work for more than 2 ports I don't know. Only time I've tried inband with more is with a TVA on a non-Panasonic KSU.