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  • Move the computer to within 3-9 feet (1-3 meters) of the wireless router.
  • Make sure the wireless switch is on. It will be either a sliding switch on the left or right side edge of the computer, a key combination or single key. Toggling this switch will turn all the wireless connections (Wi-Fi, Bluetooth and Mobile Broadband) on and off, at the same time. Look for a wireless icon
  • From the Start page, click Desktop.
  • Right-click the network icon the notification area of your taskbar, and then click Troubleshoot problems and follow the instructions.
  • Turn off and then turn on all the devices on the network to synchronize them
  • Make sure the latest driver is installed
  • Make sure the correct network name (SSID) and passphrase or network key (if any) were used to create a profile.
  • Configure the wireless adapter settings for optimal performance
  • Update the computer to the most current BIOS
  • Run the Network Adapter Diagnostics with help of Dell Inspiron 1720 Manual.