Command/Powershell script to reset a network adapter

Question

OS: Vista enterprise

When i switch between my home and office network, i always face issues with getting connected to the network. Almost always I have to use the diagnostic service in 'Network and sharing center' and the problem gets solved when i use the reset network adapter option.

This takes a lot of time (3-4 min) and so i was trying to find either a command or a powershell script/cmdlet which i can use directly to reset the network adapter and save myself these 5 mins every time i have to switch between the networks. Any pointers?

Answer 1

See this article from The Scripting Guys, "How Can I Enable or Disable My Network Adapter?"

Answer 2

You can also try this in a .BAT or .CMD file:

ipconfig /release
ipconfig /renew
arp -d *
nbtstat -R
nbtstat -RR
ipconfig /flushdns
ipconfig /registerdns

These commands should do the same things as the 'Diagnose and Repair' for the network adapter, but is WAY faster!

Let me know if this helps! JFV

Answer 3

You can use WMI from within PowerShell to accomplish this. Assuming there is a network adapter who's device name has Wireless in it, the series of commands might look something like the following:

$adaptor = Get-WmiObject -Class Win32_NetworkAdapter | Where-Object {$_.Name -like "*Wireless*"}
$adaptor.Disable()
$adaptor.Enable()

Remember, if you're running this with Window's Vista, you may need to run the PowerShell as Administrator.

Answer 4

You can also use the Microsoft utility devcon.exe.

First, run devcon listclass net to find your Device ID.

Then use this device ID in this command: devcon restart PCI\VEN_16* (using the '*' wildcard to avoid needing to enter the entire ID string).