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Windows 2012 R2 Server VM network dropping

Posted on 2014-01-16
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Last Modified: 2016-11-23
I am having problem with Microsoft 2012 R2 Std Server VM network dropping intermittently. I am actually setting up the server for DR purposes, so it is installed into a DELL notebook with Realtek Gigabit ethernet card.

I tried removing the network adapter and install a legacy network adapter. It solves my problem, however I lost my gigabit connection (its now running 100mbps). Any advise is much appreciated. Would like to know if its because of the network adapter brand causing this?
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Question by:kianh_99
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Expert Comment

by:WayneATaylor
ID: 39795676
I assume you have checked if there is a later version of the driver?

Also, have you tested the network cable as its possible that at 100Mb it works fine, but if there is excess noise or crosstalk etc, then a 1Gb link might not hold up so well and would give you an intermittent connection.

Can you try on a different link, maybe a shorter patch straight into the switch or something?

Wayne
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Accepted Solution

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kianh_99 earned 0 total points
ID: 39807184
The problem is with the network card brand. It is not fully supported for HyperV network emulation. Hence I need to use legacy adapter and lose the gigabit speed. Its best to get intel network adapters for HyperV servers, gets you less compatibility issues. (With VMware ESCi 5.5 as well)
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Author Closing Comment

by:kianh_99
ID: 39817286
No comment from other users. Answer given is non-relevant. I resort to searching from other sites. Will stop subscribing ee as most answers are searchable within top 5 of google answers and most importantly it does not solve the problem. If the solution from google search works, we will not be asking in ee.
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