carmen95,
How to login to your wireless router and use these Recommended Wireless Router Settings I use channel 11. I would make a new SSID to make connecting easier.
Go to Drivers & Downloads enter your service tag number, then select your operating system. Under Network, download and install the latest drivers.
Try these tweaks....
Start, control panel, device manager. Click on Network and then right click on your wireless adapter, left click properties, power management. Uncheck the box, allow computer to turn off this device to save power.
Click on Advanced. Look for Antenna Diversity. If your adapter has Antenna Diversity, change it from Auto to Aux.
Go to the power options, and changed the Wireless Adapter Setting, from Maximum Power Setting to Maximum Performance.
Rick