Here’s the direct link for downloading Wireless WiFi Network driver files for Dell Inspiron N5050;
Alaternately you can search for R309923 on Dell Support website;
Dell Wireless 1701 802.11 b/g/n Driver
This package provides the Dell Wireless 1701 802.11 b/g/n Driver and is supported on Vostro Notebook 3555 and Inspiron M5110 that are running the following Windows Operating System: Windows 7.
Fixes & Enhancements
Fixes – Not Applicable Enhancements – Improved the WiFi utility function for OOBE
Version 188.8.131.52, A01
05 Mar 2014
File Format: Hard-Drive
File Name: R309923.exe
Download Type: HTTP
File Size: 97.58 MB
This file contains a compressed (or zipped) set of files. Download the file to a folder on your hard drive, and then run (double-click) it to unzip the set of files. Follow the instructions to complete the installation.
Hard Drive Installation (via WinZip) with Setup.exe File for R309923.exe Download 1. Click Download File, to download the file. 2. When the File Download window appears, click Save (Windows XP users will click Save) this program to disk and click OK. The Save In: window appear. 3. From the Save In: field, click the down arrow then click to select Desktop and click Save. The file will download to youdesktop. 4. If the Download Complete window appears, click Close. The file icon appears on youdesktop. Install 1. Double-click the new icon on the desktop labeled R309923.exe. 2. The Self-Extracting window appears and prompts you to extract or unzip to “C:\DELL\DRIVERS\R309923”. Write down this path so the executable (I.e.Setup.exe) file can be found later. 3. The Self-Extractor window appears. 4. Click OK. 5. After completing the file extraction, if the Self-Extractorwindow is still open, close it. 6. Click the Start button and then click Run. 7.Type “C:\DELL\DRIVERS\R309923” in the Open textbox and then click OK. 8. Follow the on-screen installation instructions.