Resolutions of losing network after sleep mode

[chicagotech]

1. Re-setup power management. Please refer to this post:

Vista Power Management Issues
http://www.chicagotech.net/vista/vistapower.htm

2. Install Windows Vista update.

Windows Vista Update and download
Based on MS, This update improves the compatibility, reliability, and stability of Windows Vista and includes the following improvements: ...
www.chicagotech.net/netforums/viewtopic.php?t=859

3. Assign static IP instead of using DHCP.

4. Install latest driver for the NIC or firmware for the router.

5. If above don't fix the problem, just use ipconfig /release and then ipconfig /renew command to receive the IP from the DHCP.

[guest]

You may want to check your power settings in the BIOS or reset the
advance power settings through Control Panel. Also, check the power
setting configuration on the NIC through Network Connections to see if
you can prevent the NIC from turning itself off?

[pixelPete]

I had the same issue today - none of the above helped directly. What was happening in my case was that the LAN driver was being dropped upon resume by Vista. The following fix worked for me:

* Open CONTROL PANEL
* Open Device Manager
* See if the LAN Network Adapter appears as a device
* If not, Right Click on your computer name
* Choose "Scan for Hardware Changes"

In my case the LAN device re-appeared but when I performed an IPCONFIG /ALL in a Command Box, the LAN Adapter had not picked up a correct IP address. But doing a IPCONFIG /RENEW fixed that!

Thanks for all who gave the above useful tips to solve this rather silly problem with Vista.

[blin]

Thank you for sharing your experience with us.