Good to hear that it's going.
The commands and responses should give details of the data that the mount is sending to SGP and will help to find out what's happening at the time that the meridian flip time changes. It will probably need the csv log and the SGP log for the same sessions.
Yes, WiFi is just another thing to go wrong. Hard wired connections are much more reliable and the simpler the better.
Chris
Just seen the csv log, it's returning Ra, Dec, Alt, Azm, sidereal time and side of pier. Now to see what happens when time changes.
C