It appears that my occasional problems with my PCX2200 involve the RF connector. I've tried changing the cable, but that made no difference.
When the modem starts to act up (massive packet loss when pinging my default gateway), I've discovered that I can reach over and generally mess with that connector, and it will start working ok again. Sometimes, I can "fix" it by unscrewing the connection several turns and just leaving it that way.
If I set up Ping to do 50 or so in succession, I can see it stop losing packets as I unscrew the cable. At other times, I can fix it by screwing the cable back in, at least part of the way. But none of these fixes last very long.
Well I've taken the modem apart (those tamper-proof torx screws were a bitch), and it seems the connector in question is inside a completely-enclosed tuner assembly. The tuner appears to have a snap-on top, but it doesn't want to move, and there appear to be things inside the tuner which are soldered into holes in that top.
Has anyone here ever removed the top from that tuner? Did that turn out to be a destructive disassembly? Does anyone have a dead 2200 he could take apart and tell me how I can get to that connector?