Hi florecitaro, If the system is more than 30 feet away from  the router, it could be the distance and interference issue. Check if you could connect to any other available network. Update the latest wireless drivers available at the Dell support site. To know what type of wireless card is installed, click Start and type Device Manager. In Device manager, expand Network adapters. Note the wireless card model.  On the Dell support site, enter the service tag and select the operating system to narrow down the search for the correct drivers. Download and install the wireless drivers based on the wireless card model. If the issue persists after the wireless drivers are updated, run custom scan on the wireless card using PC check up in Dell support center. Do reply with the results.
Hello, i been having troubles with mi wifi conection, i have a dell xps. Worked fine until 15 days ago, the conection suddenly gets slow or dead. Although if conect the computer to the router through the cable works perfect again. Sorry for my english, im not american, hope somebody could help me with this, thanks in advance!
Trouble with my wifi card