Comcast's wireless Internet is by and large, relatively stable, but there may come a time when your equipment becomes out of sync with each other. This results in your wireless Internet connection going out. Whereas your hardwired desktop may be working perfectly well, your laptop will not be able to access the Web. Here's how to easily fix this problem yourself and you'll be surfing the Web in no time--instead of waiting on hold forever.
Instructions
Step 1Turn off all of the computers in your home--laptops, desktops--all of them.

Step 2When all of the computers are completely off, unplug both your cable modem and your wireless router. The wireless router will have an antennae on it and it plugs directly into the modem.

Step 3Allow both pieces of equipment to sit for a few minutes.

Step 4Plug in your cable modem first AND NOTHING ELSE. Wait for all of the modem's lights to come up as it reboots.

Step 5Once your cable modem is back up, plug in your wireless router. Do not turn on the computers yet. Wait for the wireless router's lights to all come back up.

Step 6After the wireless router is back on, then, and only then, should you turn your computers back on. As the laptop starts, it will get a clean IP address and your wireless Internet connection should be re-established.