If your computer or device cannot detect any wireless networks check to confirm that your computer has its wireless capabilities turned on. If your computer is a laptop, you may have a switch on the front or side which can enable or disable this feature.
Restart the modem
Many WiFi issues can be corrected simply by power cycling your Shaw modem.
Unplug the power cable from the back of the WiFi Modem.
Wait 30 seconds.
Reconnect the power cable to the modem.
When your WiFi network appears in the list of available networks on your device, try connecting to it to see if it works.
Every wireless device has a wireless mode that broadcasts or receives a wireless signal, at a certain frequency range, and supports a specified maximum bandwidth (download and upload speeds).
If your device's wireless mode is incompatible with the current wireless mode of your Shaw Wireless Modem, your device may not be able to detect or connect to your wireless network. Refer to the manufacturer's documentation of your device to check which wireless mode your device operates in. To view or change the wireless mode, read How To: Change the Wireless Mode (b/g/n).