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Restart NIC automatically

Posted on 2006-11-07
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Last Modified: 2010-05-18
I have a problem on my email server that I cannot figure out the issue...until I figure out the issue, I have found that restarting the NIC (enable/disable, plug/unplug etc) seems to fix the problem for a half hour or so.  Does anyone know of a way to have Windows scheduler run a script or something that will restart the NIC (or TCP/IP)

Thanks
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Question by:rustyrpage
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by:Jay_Jay70
ID: 17895733
you can use the devcon utility from ms

http://support.microsoft.com/kb/q311272/
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by:rustyrpage
ID: 17895746
I do not want to actually reboot the whole server...just the network interface.  I do not even know what service that is.  I need to be able to do it as a restart so that I do not have to go to the server console to restart.
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by:Jay_Jay70
ID: 17895816
i know, thats why i suggested devcon :) i havent scripted it before, but have noticed mentioned in a couple of threads, thought it might help, its just a command line sub for device manager
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by:rustyrpage
ID: 17895829
I would need an idea of how to do it since I don't see any easy way.
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by:Jay_Jay70
ID: 17895864
aight give me some time and ill see if i can put it in a script for you
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by:jalilthe1
ID: 17897025
Try
The keys in the registry are located in the following location -

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002BE10318}

Under here you will have many other sub-keys for your network adapters (onboard/wireless/bluetooth etc) theyt are named 0000, 0001, 0002 etc

Unfortunately, each NIC will have it's Network Speed and Duple mode referenced in a different way so you will have to chack each model. E.g On a Dell GX260 they are "Duplexmode"="FullDuplex" and "MediaSelect"="100BASETX", other Dell's are "SpeedDuplex"="4".

Most machines will need a reboot to make the change.

Good luck.
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by:MarkusKolbeck
ID: 17897037
you can use the Windows Support Tool devcon (Device Console) to enable or disable devices (such as the NIC).

Example to disable the VMWare NIC:
devcon disable *VMNetAdapter1

you must provide the Hardware-ID which can be found in the device manager (devmgmt.msc) under the properies - details - Hardware-IDs of the network card.

ATB
Markus
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myron-szy earned 500 total points
ID: 17905657
I had this problem with a VIA NIC that is built onto the main board and the NIC only seemed to go deaf and dumb about 7 days after the initial PPTP connection through it.  After about a month of head scratching and going off a hunch I put in a NIC with the RealTek NIC chip on it and since I did that all the connectivity problems are 100% solved.  Disabling and re-enabling the problem NIC, for me, may have restored connectivity but I soon discovered that File and Print services continued to malfunction as well as a few other services after the VIA NIC malfunctioned until I rebooted the server.  For a while I resorted to a schedule and script that rebooted the file server in the very early morning during the weekend.

A process of troubleshooting the problem: try use another NIC to see if the NIC and/or NIC's device driver is at fault or of the fault lies in some other part of the server operating system.

The actual NIC I was having problems with is labeled as:  VIA Rhine II Campotible Fast Etherent Adapter
It's Microsoft's own NIC driver that's controlling this NIC.

For curiosity's sake, try another NIC.
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by:myron-szy
ID: 17939965
Thanks for the the grade A rating.  Which solution did you implement?  A server restart early in the morning or a different NIC?
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Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

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