need help resolving issue with vmware guest server nic becoming unresponsive

I have a 2012 guest server on a VMWare 5.5 host server that works fine, but one nic (E1000) will randomly stop passing traffic; usually after a day or two. Disabling and re-enabling the nic brings it back to life. This only happens on one of the two nics.

The 2nd nic is on a management vlan and does not have a gateway, but always is available.

Any ideas what would cause this and how to fix?
tamray_techAsked:
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ChrisSr. Systems EngineerCommented:
For 2012, E1000 nics are not fully supported on server 2012 because they are legacy..

You should change the nic driver to VMXNET 3 for server 2012 and 2012R2

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1001805

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Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization ConsultantCommented:
Make sure you have VMware Tools installed to support the replacement of the E1000 nic, with the VMXNET3 interface.
MaekelCommented:
Install vmware tools like andrew said from the preview answer and remove e1000 network card after a VM stop then finally add a card from same vSwitch. It should be a vmxnet3 TYPE . PLease DONT USE DEFAULT CARD for this.
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