Hi,
Do you connect to the internet wireless? If you do there should be a check box under the wireless network name before you connect that should say Connect automatically. Once you've put a check on it click Connect. Reboot your laptop and see if the same problem will persist.If these doesn't work do try these steps.
- Right click on wireless network name and select Properties.
- Put a check on Connect automatically when this network is in range then click OK.
Hopefully this will solve the issue.