Solved

Virtual machine keeps losing network connection

Posted on 2014-10-31
4
874 Views
Last Modified: 2014-11-13
I'm running ESXi 5.5 with three VMs on it. Two of the VMs are not actively used but are up and running. The third VM (Windows Server 2012 R2) is currently being used to store data backups, so a fair amount of data is transferred to it daily. For some reason, over the past few weeks, this VM has been losing network connectivity, it seems, typically sometime at night after the backup. The event logs will show errors relating to loss connectivity, but, unless I missed it, nothing noting why it happend.

Repairing the network connection will resolve the issue, but it will happen again a few days later. While the network is down on this VM, I'm still able to access the other two VMs without issue. Any idea what could be causing this?
0
Comment
Question by:ruhkus
  • 2
4 Comments
 
LVL 118

Accepted Solution

by:
Andrew Hancock (VMware vExpert / EE MVE) earned 500 total points
ID: 40416555
Firstly, you are using the VMXNET3 interface and have VMware Tools installed to supported this interface.

The E1000 should just be used for installation, and then replaced with the VMXNET3.
0
 

Author Comment

by:ruhkus
ID: 40419460
I was using the E1000, and I switched it to the VMXNET3 over the weekend, so I'll see if that improves things. All my other servers seemed to run fine with the E1000s, though I see that isn't exactly best practice. Hopefully that's all the issue is.

Thanks.
0
 
LVL 5

Expert Comment

by:Stappmeyer
ID: 40419908
You may want to confirm that the VM hardware version is also correct.  I recently found a VM with hardware version 4 running erratically. I upgraded to version 7 and corrected the issues.
0
 

Author Closing Comment

by:ruhkus
ID: 40440410
It hasn't acted up all of last week, so hopefully that's all it was.

Thanks.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In this article, I will show you HOW TO: Install VMware Tools for Windows on a VMware Windows virtual machine on a VMware vSphere Hypervisor 6.5 (ESXi 6.5) Host Server, using the VMware Host Client. The virtual machine has Windows Server 2016 instal…
In this article, I am going to show you how to simulate a multi-site Lab environment on a single Hyper-V host. I use this method successfully in my own lab to simulate three fully routed global AD Sites on a Windows 10 Hyper-V host.
Advanced tutorial on how to run the esxtop command to capture a batch file in csv format in order to export the file and use it for performance analysis. He demonstrates how to download the file using a vSphere web client (or vSphere client) and exp…
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.

919 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

16 Experts available now in Live!

Get 1:1 Help Now