ESXi 4.1 looses connectivity intermittently

Posted on 2011-02-22
Last Modified: 2012-11-20
we have 2 esxi 4.1 hosts running which loose connectivity intermittently when connected with various clients - vsphere client, FastSCP or VM Explorer. This prevents us to back up VMs.

From vsphere client we get the following message:
The request failed becuase the server '' closed the connection. (The underlying connection was closed: A connection that was expected to be kept alive was closed by the server.)
Error Stack
Call "PropertyCollector.CreateFilter" for object "ha-property-collector" on ESXi "" failed.

The problem disappears if we shut down one host, we can backup VMs with trilead or FastSCP without issues.

Any insight will be appreciated.
Question by:egourmet
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 2
  • 2
LVL 28

Expert Comment

ID: 34955569
You might start with - my solution there pointed to some different places to look to diagnose. Even though I was credited with the solution the asker didn't post exactly what he found.

Anyway - recommendations would be the same here.
LVL 16

Expert Comment

ID: 34956263
are you using VLAN's for the management console connections?

Author Comment

ID: 34962400
I had read that post before posting mine. We use unmanaged switches, nothing out of the ordinary there. How do i get to /var/log on the esxi host?

@ danm66,
We did not set up VLAN on the hosts. the management network is on the same vSwitch as some VMs.

what puzzles me is that it works flawlessly with only 1 host on the LAN but the hosts starts dropping their connection when the second one is on.
Save the day with this special offer from ATEN!

Save 30% on the CV211 using promo code EXPERTS30 now through April 30th. The ATEN CV211 connects a laptop directly to any server allowing you instant access to perform data maintenance and local operations, for quick troubleshooting, updating, service and repair.

LVL 16

Accepted Solution

danm66 earned 250 total points
ID: 34962877 will show you how to get into the console so you can access /var/log .  Most people use the 'less' command to browse a log file in the console.  'less messages' then use vi-style commands to navigate and search the file.

To copy a log file from the system you can either use something like WinSCP to connect to the host and pull files off, generate a log bundle to your PC and extract the files there or copy the file over to a datastore (/vmfs/volumes/datastorename) and then use the datastore browser to download the file.

The reason I ask about VLAN's is that it sounds like there is some kind of network conflict or path looping going on.  

while you are in the console, run 'esxtop' hit 'n' to switch to the network view and see if there are any dropped packets.  You may need to let it run for awhile and then check back every min or so.
LVL 28

Expert Comment

ID: 34966528
Have you double and triple checked you don't have the same IP configured anywhere on both hosts? It is interesting that all works with one host down. This definately indicates some kind of conflict.

Can you post the Network Configuration screenshots from each host?
LVL 16

Expert Comment

ID: 34974722
did you find the cause?  Inquiring minds want to know what you found.  :)

Author Comment

ID: 34980514
We moved the second host to a different location/LAN so we do not have the issue. Thank you for the comments.
it still puzzles me though. I will look at the logs when i get a chance and see if i can find the cause.

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

This article will show you how to create an ISO CD-ROM/DVD-ROM image (*.iso), and MD5 checksum signature, for use with VMware vSphere Hypervisor 6.5 (ESXi 6.5). It's a good idea to compare checksums, because many installations fail because of a corr…
In this article, I show you step by step with screenshots to assist you - HOW TO: Deploy and Install the VMware vCenter Server Appliance 6.5 (VCSA 6.5), with some helpful tips along the way.
Teach the user how to configure vSphere Replication and how to protect and recover VMs Open vSphere Web Client: Verify vsphere Replication is enabled: Enable vSphere Replication for a virtual machine: Verify replicated VM is created: Recover replica…
This Micro Tutorial steps you through the configuration steps to configure your ESXi host Management Network settings and test the management network, ensure the host is recognized by the DNS Server, configure a new password, and the troubleshooting…

707 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