Solved

Virtual machine keeps losing network connection

Posted on 2014-10-31
4
969 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 119

Accepted Solution

by:
Andrew Hancock (VMware vExpert / EE MVE^2) 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

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

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

Suggested Solutions

When you try to share a printer , you may receive one of the following error messages. Error message when you use the Add Printer Wizard to share a printer: Windows could not share your printer. Operation could not be completed (Error 0x000006…
In this article we will learn how to backup a VMware farm using Nakivo Backup & Replication. In this tutorial we will install the software on a Windows 2012 R2 Server.
Viewers will learn how to connect to a wireless network using the network security key. They will also learn how to access the IP address and DNS server for connections that must be done manually. After setting up a router, find the network security…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

830 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