Well, coopshah, you're right: My router does not include wireless connections. The hackers upstairs are getting into my PC somehow while I am not physically connected to the cable modem, and the router has no known wireless capability; neither does the old IBM NetVista. I know: it seems impossible, but it's happening.
Today I've come back to the library again to check this thread and post. The router (purchased a few years ago, used, on Ebay) is a Linksys Broadband Router with 2 phone ports, Model RT31F2 (assuming I read the tiny print correctly).
The PC does not have known bluetooth capability, either, but sometimes when I shut down the system recently, both SDPD & HCID (iirc) shut down -- as seen in the shutdown report messages. So, sometimes I remove the bluetooth directory in /etc/, but that doesn't seem to shut them out, either.
I'm typing this from the library. When I tried earlier (last week)
to get to
http://192.168.1.1, that site would not come up. I haven't turned on this PC at home since then, because I think now they're trying to frame me. (My cable modem was plugged in when I got home Friday afternoon; that's not how I left it.)
Please be careful if you live in an apartment building. There are obviously some hacking capabilities we don't understand yet. If anyone can point me to more services I can shut down, I'd appreciate it.