Hi AdityaVikas,

Please share what kind of connection are you using, wireless or wired.

Dell Inspiron 14R 5420 comes with the following Network Cards:

• 1703 WiFi + Bluetooth 4.0 Half Mini Card.
• 1704 WiFi + Bluetooth 4.0 Half Mini Card.
• WLAN 1901 WiFi + Bluetooth 4.0 Half Mini Card.
• Intel® 2230 WiFi + Bluetooth 4.0 Half Mini Card.
• Atheros 8161/8162 Ethernet Card.

You may try the following steps to update the network drivers:

• Restart your system and click on the link: http://dell.to/QjjZDA
• Enter the Service Tag of your system and select the operating system.
• You will find the wireless card and Ethernet Controller drivers under 'Networks'.
• Click on the network driver depending on the wireless or NIC card your system has.
• Click on 'Download File'.
• Select 'For Single File Download via Browser'.
• Click on 'Download Now'.
• Save the driver on your desktop.
• Once the driver is saved on desktop, right click on it and select 'Run as administrator'.
• Install the network driver by following the on screen instructions.

Also please paste a screenshot of the 'Device Manager' with the 'Network Adapters' expanded. Here are the steps to open 'Device Manager':

• Click on 'Start' and right click on 'Computer'.
• Click on 'Manage'.
• Click on 'Device Manager'.

Hope this helps. Please reply if you have any questions.

Check your ethernet cable and jack

Check your ethernet cable and jack

Check your ethernet cable and jack

Hi AdityaVikas,

Glad you were able to isolate the root cause.

Do reach out for any assistance or further queries.