the lan network adapter for dell vostro doesn't work

[modynasr]

my lan network adapter was working proberly but now when i connect the net wire gives me the red x mark on net connection icon and the network doesn't work

 

[BeADev]

1. Download the latest network adapter driver from the manufacturer website and install it in compatible mode. If the issue persists, please temporarily disable the adapter and re-enable it again for a test.

2. Verify relevant service

a. Click "Start", go to run, type "services.msc" (without quotation marks) in the open box and press Enter.
b. Click Continue button to verify the administrator permission.
c. Right click the "Network Location Awareness" service and choose Properties.
d. On General tab click Start.
e. Choose Automatic next to Startup type.
f. Click OK.

3. Restart the computer in Safe Mode with Networking for a test.