I haven't seen this before. Are you still using Cox cable internet? Why one coax also give these numbers "but works", might be due to a shorter coax and having less loss than this one, "but" the numbers show there is another problem, which because of being so close to the cable TV band, kind of suggests that it has something to do with it. Maybe there is still a filter or other component left in the line feeding your condo, or it is still somehow connected to your feed. Either recheck all the coax runs and disconnect everything but this run and see if anything changes, "or" have the tech back out and show him what the SWM does and make him fix it.