Mary complained last week that she wasn't able to get onto the Internet from our cable connection. When I came home, I tried it, and it didn't work, nor did any wi-fi connections. Thinking that it was the wi-fi router, I disconnected it and attached the cable directly to the Ethernet card on my desktop, and it worked, until I shut down and started up again, whereupon it didn't work. I found that I was able to get a connection by disconnecting and reconnecting the Ethernet cable from the Ethernet card (such as I did a minute ago). When I try to connect one of my laptops using a wired connection, I get a message that tells me that the connection is incomplete (or something to that effect), ipconfig shows me with no IP address aside from 127.0.0.1, and I can't ping any websites.
Additionally, when I try to connect to certain sites (e.g. the signon page for Amazon.com), I'm getting a "connection refused" message.
Does that sound like a problem with the cable modem?