When I am unable to use the internet on my computer, it still works on my landlord's computer. Everything works fine on his end. But according to the status icon and window of my wireless card, it's still connected, and I still get signal readings, yet I'm unable to browse or otherwise use the internet at all. And it won't work again until I either restart, or change something.
For example, as I said, it would work for about twenty minutes at a time, then not work, and only start working again after I restarted. Then restarting no longer worked and I had to shut down my firewall and antivirus software. Then it worked for awhile, stopped working, and did not work again when I restarted. So under my configuration options, I set Network SSID to Linksys, and it worked. (It was set to first available access point before. Also, I tried typing in the SSID provided by our ISP, but that didn't work.) Then it stopped working, and worked again after I restarted.
As for our setup, this is how it works: Our ISP is Bell Sympatico. He had internet with them, and I asked if he would share his connection. He called Bell and asked how he could go about this, and they said he would have to upgrade his connection and that they would send us something they called the Wireless Home Networking Modem. It looks like a normal modem, except it has two additional lights, (Wireless and Internet.) three additional ethernet plugs, and an antenna by the power button.
His computer is upstairs, and connected to the modem/router/whatever it is via ethernet. My computer is in the basement, and has a wireless card. (I did all of the setup work for both computers.) As I said, his connection works perfectly, and as the topic title states, mine is obscenely slow and erratic.
And lastly, since I am so stupid and ignorant, please tell me how to share a folder between our two computers, and how, if necessary, to change my wireless channel. (I do see a channel window in my configuration screen, but it's greyed out, so I cannot change it. It's on channel 6.)