My computer is about 5 years old and is beginning to show signs of wear. The other day it started to have problems connecting to the Internet. It is connected directly to the router via a cable, although it is not the main connection. (Hope that made sense.)
I would get a message that an a network cable was disconnected, although it was connected. I disconnected and then connected it again and it would work. But it was doing this more and more. I wasn't sure it this was my computer or the cable, so I attached the cable to my laptop, after disconnecting the wireless connection, and it worked fine. That led me to think that the problem was my computer.
But then the wireless connection stopped working as well. I couldn't connect to my network on my cell phone, my tablet, or my laptop. I called my service provider, who told me to unplug both the router and the modem and then plug them back in. That took care of it. I was able to connect again.
However, this continues to happen. My computer keeps periodically alerting me that a local network cable is disconneted, when it's not. At times when I check the network connection on my phone, it will say that my home network is not in range, when of course it is.
There is clearly a problem, but I don't know where it is. I can't afford to buy a whole new system (thanks to ACA, my work hours were just cut in half), so I'd like to pinpoint the problem. I'm thinking it's a router problem, rather than a modem problem. But then it could be the modem. I don't know if my computer could be affecting the router and modem. That would seem odd, but I don't know.
When I see this problem, I check the router and modem. The router will not show that the connections are working -- that is, the lights are not lit up. That's what makes me think it's the router. But then if the modem isn't working, wouldn't that affect the router? The modem lights will be on even when the router lights aren't.
I hope I have provided enough information and that someone can help me figure this out.