Network connection lost to ESXi 4.1

Similar Questions

• "Network connectivity lost" alert - how to find which NIC is it?

  Hi, we cluster with VCenter 5.5 HA and 2 X ESXi servers.

  Each host has 4 NIC

  One of the host's alert 'Network connectivity lost' that was triggered 02:00 in the morning. Is to verify that NIC is this anyway?

  The events tab says know as NIC.

  Any help would be appreciated, thanks.

  You should see some sort of event in the user interface and the vmkernal.log and vobd.log.

  
  

  VMkernel.log

  ~ #vmkernel.log | grep "link down"

  2014-11 - T 05, 20: 17:20.770Z cpu0:33263) netsched: NetSchedMClkNotify:2329: vmnic1: link down notification

  ~ #vmkernel.log | grep 'link up'

  2014-11 - T 05, 20: 17:33.314Z cpu0:33265) netsched: NetSchedMClkNotify:2321: vmnic1: link notification

  2014-11 - T 05, 20: 17:33.656Z cpu1:33411) netsched: NetSchedMClkWatchdogSysWorld:3786: vmnic1: bind an event received, device operating at 1000 Mbps for the adjustment of the depth of queue to 8646 bytes with bytes 131 expected / us

  2014-11 - T 05, 20: 17:33.735Z cpu1:32808) netsched: NetSchedMClkNotify:2321: vmnic1: link notification

  2014-11 - T 05, 20: 17:33.736Z cpu0:36689) netsched: NetSchedMClkWatchdogSysWorld:3786: vmnic1: bind an event received, device operating at 1000 Mbps for the adjustment of the depth of queue to 8646 bytes with bytes 131 expected / us

  ~ #

  ~ #vmkernel.log | grep "NIC link is Down"

  2014-11 - T 05, 20: 21:25.915Z cpu0:33267)<6>e1000: vmnic5: e1000_watchdog_task: NIC link is

  ~ #vmkernel.log | grep "NIC link is Up"

  2014-11 - T 05, 20: 21:41.660Z cpu1:33268)<6>e1000: vmnic5: e1000_watchdog_task: NIC link is up 1000 Mbps Full Duplex, flow control: no

  vobd.log

  Just did a test for you.

  ~ # tailvobd.log

  2014-11 - T 05, 20: 17:33.418Z: [netCorrelator] 620684191us: [vob.net.dvport.uplink.transition.up] Uplink: vmnic1 is in place. Affected dvPort: 5/a6 eb 07 50 28 7 b c8 5 a - a0 a6 99 e8 ad b 8, 95 6. 1 uplinks to the top

  2014-11 - T 05, 20: 17:33.418Z: [netCorrelator] 620684194us: [vob.net.dvport.uplink.transition.up] Uplink: vmnic1 is in place. Affected dvPort: 5/a6 eb 07 50 28 7 b c8 5 a - a0 a6 99 e8 ad b 8, 95 6. 1 uplinks to the top

  2014-11 - T 05, 20: 17:35.000Z: [netCorrelator] 622285373us: [esx.clear.net.dvport.connectivity.restored] network connectivity restored on DVPorts: ' 5/a6 eb 07 50 28 7 b c8 5 a - a0 a6 99 e8 ad 8 6th b 95', ' 5/a6 eb 07 50 28 7 b c8 5 a - a0 a6 99 e8 ad b 8, 95 6. Vmnic1 physical NIC is in place

  2014-11 - T 05, 20: 17:35.000Z: [netCorrelator] 622285495us: [esx.clear.net.dvport.redundancy.restored] redundancy Uplink restored on DVPorts: ' 5/a6 eb 07 50 28 7 b c8 5 a - a0 a6 99 e8 ad 8 6th b 95', ' 5/a6 eb 07 50 28 7 b c8 5 a - a0 a6 99 e8 ad 8 6th b 95', ' 5/a6 eb 07 50 28 7 b c8 5 a - a0 a6 99 e8 ad b 8, 95 6. Vmnic1 physical NIC is in place

  2014-11 - T 05, 20: 21:26.094Z: [netCorrelator] 853350673us: [vob.net.vmnic.linkstate.down] vmnic linkstate down vmnic5

  2014-11 - T 05, 20: 21:27.001Z: [netCorrelator] 854286718us: [esx.problem.net.vmnic.linkstate.down] vmnic5 of the physical NIC linkstate is down

  2014-11 - T 05, 20: 21:42.149Z: [netCorrelator] 869405317us: [vob.net.vmnic.linkstate.up] vmnic linkstate upward vmnic5

  2014-11 - T 05, 20: 21:43.002Z: [netCorrelator] 870287321us: [esx.clear.net.vmnic.linkstate.up] vmnic5 of the physical NIC linkstate is in place

  2014-11 - T 05, 20: 24:38.723Z: [netCorrelator] 1045972218us: [vob.net.vmnic.linkstate.down] vmnic linkstate down vmnic5

  2014-11 - T 05, 20: 24:39.000Z: [netCorrelator] 1046284854us: [esx.problem.net.vmnic.linkstate.down] vmnic5 of the physical NIC linkstate is down

  2014-11 - T 05, 20: 24:42.230Z: [netCorrelator] 1049478491us: [vob.net.vmnic.linkstate.up] vmnic linkstate upward vmnic5

  2014-11 - T 05, 20: 24:43.001Z: [netCorrelator] 1050286523us: [esx.clear.net.vmnic.linkstate.up] vmnic5 of the physical NIC linkstate is in place

  * Reminder to implement Syslog.global.logHost (software) advanced creation collection newspaper and magazine.

• Apple Store is not up-to-day - network connection lost

  Hello

  I have a MacBook Pro with OS X El Capitan installed and allows you to connect to the Bank of the United States, where I bought the laptop. I moved to the New Zealand a few months ago and changed the NZ store, and for the last two weeks that I'm not able to update the software through the Apple Store, I always get the message "the network connection has been lost", even if the network is OK:

  

  My account is active, no problem. I even "bought" a free app just in case and it's all good - I could add to my list of software and download it.

  Any thoughts on how to proceed?

  Thank you

  Fabio

  More info: I already followed the instructions to "If you can not connect to the iTunes Store - Apple Support.", everything is OK - no firewall issues, DNS or key ring...

• Satellite Pro U400 - network connection lost after suspend

  I have a Toshiba Dynadock. My network is connect directly in dynadock.

  When suspend my Satellite Pro U400 and after reboot to continue working I lost my network connection. Then I shut down my computer and disconnect/connect Dynadock I can continue working.

  What is the problem?
  Dynadock software version is 2.0

  Hello

  I see that you have switched from Vista to XP.

  First of all I recommend you update the BIOS.
  As I m not wrong on the European driver Toshiba page, you should find a newer version of the BIOS.

  You will need to upgrade Win XP to the last State.
  The XP must be up-to-date and all service packs, hotfixes and patches MS must be installed in your laptop.

  Access the Device Manager, and then score in each USB hub root, you must disable the option called allow the computer to turn off this device to save power
  You can find this option in the properties-> tab power management

• network connection lost alarm

  Hello

  alarm sails host shows "Lost network connectivity" and "Network of uplink redundancy lost" errors in vCenter red Rectangle symbol and came on the host, but all VM and servises performs very well what was the reason for this alarm and what is the solution for this.

  In this case it could have been a temporary problem with the network, which is already solved. To get rid of the alarm message, you will need recognize/reset the alarm.

  André

• A previous network connection lost

  My ethernet network consist of:

  -2 workstations Windows 7 cables

  -1 Windows 7 WiFi laptop computer

  -1 office wired Windows XP

  - and a HP C309a printer cable

  Everything seemed to be initially connected to the network working group when switched on via a router Airport Extreme with Internet access via a modem Telco.  Once the modem has failed, a Telco modem/router was provided as a replacement.

  Since then, one of the Windows 7 desktop computers is no longer connects with the WORKING group.  Initially, the cable has proved defective when the Internet and HP printer could not be connected through the router.  A new connection of cable to the Telco router has restored the Internet but still cannot detect the HP printer even through its IP address.  I confirmed that the Office XP always connects to the printer via the router so that all interconnection cables seem to be OK.  After checking that the WORKING group and the permissions settings appear to be the same, and reinstall the printer drivers and software for this office, there is still no connection with the WORKING group or the printer.

  In summer, all other workgroup devices connect through the router and the Internet, but 1 desktop computer only connects to the Internet.  I noted that the network connection for this desktop watch network 6, while others show network 4.  Maybe that's the problem.

  I need help to reset the settings of office 1 network WORKING group to be compatible with the rest of the devices.

  In computer networks, Teredo is a transition technology that gives full IPv6 connectivity for IPv6 compatible hosts serveInternet IPv4, but have no native connection to an IPv6 network.

  http://en.Wikipedia.org/wiki/Teredo_tunneling

  Overview of Teredo

  https://TechNet.Microsoft.com/en-us/network/cc917486.aspx

  Did you see a yellow triangle next to Teredo Tunneling?

  Try the following:

  1. Open command prompt with credentials for administrator (find CMD and right click - Run as administrator).
  2. Enter the netsh environment. Type "netsh" and ENTER.
  3. "int teredo" and ENTER
  4 ' set disabled state' and ENTER.
  5. open the Device Manager and uninstall "Teredo Tunneling pseudo-interface".
  6. open the command prompt with administrator credentials once more.
  7 netsh + ENTER.
  8. "int ipv6" + ENTRY
  9 ' set teredo client' + ENTRY
  10. open the Device Manager and the analysis of new hardware.
  11. Select 'Show hidden devices' in the view menu. You will see while it is present without errors

  See response to HairyFool:

  http://answers.Microsoft.com/en-us/Windows/Forum/Windows_7-networking/how-to-share-a-Internet-connection-between/b2e54f85-0bca-47CA-9195-5b26fbcee185

• Network connectivity lost every 24 hours after the migration of DVS

  Hello community...  Well, I'm puzzled again.  I am running a vSphere 5.5 U3 environment with the latest patch.  I'm going through certification VCP - VTC prep and decided to migrate my (lab at home) environment of standard virtual switches to virtual switches distributed as I have not had a lot of experience with them so far.  Migration seems to be okay.  Before migrating, I used three different 1 Gbit/s links a group of hash LACP-IP on my standard vSwitch.  I have several VLANs for different laboratory networks.  One is specifically used as a DMZ for the WAN to my ISP connectivity.  I created a virtual machine for use as a firewall with multiple network cards, which one is connected to this VLAN WAN.  On the standard vSwitch seemed to work exactly as expected.  For some reason any after moving to a DVS, the firewall VM needs to be recharged all morning before the full network connectivity is restored.  It's a strange problem.  I tried to re - create the virtual machine and play with the security settings of DvPortgroup, but the problem persists.  Anyone out there have any ideas as to what could cause this?

  Oh, a little more in detail...  I moved from hash balancing LACP/IP road based on the physical NIC load with the migration to DVS.  Remove groups from the aggregation of connection of the switch too.

  Well, change of load balancing policy and upgrade the DvSwitch to version 6 did not help.  However, I stopped the machine virtual and added 4 E1000 NIC as a test.  I've reconfigured the firewall VM to use the new cards instead of the VMXNET3.  Load Balancing has changed back to "load depending on the physical NETWORK card" and always use VGT to separate traffic.  From now on, he went the longest without experiencing the issue so far.  About 16 hours so far without having to restart the virtual machine.  Will keep posted guys.

• Network connection lost after standby on Satellite P200

  Hello

  Laptop Satellite P200
  OS VISTA 32

  When I stop to work with the laptop, I usually close monitor and when next time open computer laptop lost WIRELESS card.

  Then I have to renew the configuration IP and internet begin to work.
  Anyone know why and how to avoid it?
  End I want to continue using boot options.

  TNX for any idea

  Sandi

  Hello

  In your case, I recommend updating BIOS and to enable the option to Wake up on LAN in the BIOS and Vista.

  In Vista, you can enable it in Device Manager-> properties-> Advanced tab LAN card

  In addition, an update of the LAN driver would be desirable.

• Scanning network connection lost

  I use Windows 7 with Officejet Pro 8600, recently I tried scanning, but the error message says that I have no connection. I checked all the cables, tried to get my pc and printer and the router market works and worked by the doctor of printing & scanning HP. The doctor fixed the problem of scanning if I use the screen on the printer, but if I try to use my PC software it always says no connection. Doctor is not helping here. Can anyone help?

  Hi GS64 and welcome to the forums of HP!

  I see that you are facing problems of scan software.  I would like to help!

  I would say uninstalling the software of the printer.

  Once it is uninstalled, I suggest you put your system in clean boot mode in the configuration of Microsoft.  You can do this by following this document: How to perform a clean boot in Windows.

  Once the computer is in clean boot mode, I would suggest to reinstall the HP printer install wizard for Windows.

  Good luck and please let me know the results of your troubleshooting operations. Thanks for posting on the HP Forums!

• Uplink Network \Network connectivity redundancy lost lost

  Hello

  I have hp servers and they down due to electrical problem, and after that they up, I got these

  (redundancy uplink of lost network connectivity lost \Network)

  and I have on each server 1 standerd switch 8 vmnic 4 wrkking and 4 pending and I checked all, but I have not found any problem on any

  so please can anyone advice what is the problem

  Thnx for your support

  Hello

  Try alarm reset to green...

  Thank you

  SA

• ESXi 4.1.0 lost network connectivity?

  For the last 5 days 3 out of 4 of our server show an alarm of "lost network connectivity.  The weird thing is that we have a connectivity total all servers and all virtual servers.  All the lights flash on each swith, port, nic, and everything you can think of.   All the settings on vSwithes are the same with no red x I ran the command esxcfg-NICS-1 and # ethtool - s vmnicX without any problem.  Any ideas?

  There can be question of alarm so... can reset you the alarm and then check.

• Troubleshooting ESX 4.1 "lost network connectivity.

  Hi people,

  I made a change in a vSS in the detection of failover network status 'link' to 'Beacon probing.

  Now a have an active alarm with Red State: "Lost network connectivity", but the message in the events of the host does not show that active vmnic of my rising has the problem.

  Sound it no way of knowing which physical interface have this configuration problem?

  Thank you

  ------

  Cabral Wellington

  In addition, if you wish to arrive linkstate changes in your host you can ssh to the desired host (or via the console of the ILO, etc.) and simply grep for 'link' (provides most of output) or "linkstate" (provides a minimal output, only showing the ascent/descent of the events).

  Syntax of the command (depending on the version of ESXi host that you may need to tweak it a bit)

  ESXi 4.x

  cat /var/log/messages | grep -i link
  

  -or-

  ESXi 5.x

  cat /var/log/vmkernel.log | grep -i link
  

  Here are some example output captured everything by making the maintenance of networks:

  ~ # tail -fv /var/log/messages | grep -i link
  Jul 26 16:34:43 shell[372172]: tail -fv /var/log/messages | grep -i link
  Jul 26 16:35:52 vmkernel: 1:00:26:20.001 cpu13:4462)<3>qlge 0000:08:00.1: ql_link_down: vmnic5: Link Down.
  Jul 26 16:35:52 vobd: Jul 26 16:35:52.540: 87980025771us: [vob.net.vmnic.linkstate.down] vmnic vmnic5 linkstate down.
  Jul 26 16:35:52 vmkernel: 1:00:26:20.057 cpu15:4947)sfqosq: del pc member - q_ulink is already NULL, return
  Jul 26 16:35:52 vmkernel: 1:00:26:20.057 cpu15:4947)sfqosq: del pc member - q_ulink is already NULL, return
  Jul 26 16:35:53 vobd: Jul 26 16:35:53.542: 87981034666us: [esx.problem.net.vmnic.linkstate.down] Physical NIC vmnic5 linkstate is down.
  Jul 26 16:38:14 vmkernel: 1:00:28:41.743 cpu8:4455)<3>qlge 0000:08:00.1: ql_link_up: vmnic5: Link Up.
  Jul 26 16:38:14 vobd: Jul 26 16:38:14.432: 88121917666us: [vob.net.vmnic.linkstate.up] vmnic vmnic5 linkstate up.
  Jul 26 16:38:15 vobd: Jul 26 16:38:15.434: 88122926678us: [esx.clear.net.vmnic.linkstate.up] Physical NIC vmnic5 linkstate is up.
  Jul 26 16:39:57 vmkernel: 1:00:30:25.243 cpu0:4947)sfqosq: del pc member - q_ulink is already NULL, return
  Jul 26 16:39:58 vmkernel: 1:00:30:25.541 cpu2:4443)<3>qlge 0000:11:00.1: ql_link_down: vmnic7: Link Down.
  Jul 26 16:39:58 vobd: Jul 26 16:39:58.224: 88225709691us: [vob.net.vmnic.linkstate.down] vmnic vmnic7 linkstate down.
  Jul 26 16:39:59 vobd: Jul 26 16:39:59.226: 88226718868us: [esx.problem.net.vmnic.linkstate.down] Physical NIC vmnic7 linkstate is down.
  Jul 26 16:40:58 vmkernel: 1:00:31:26.091 cpu13:4459)<3>qlge 0000:11:00.1: ql_link_up: vmnic7: Link Up.
  Jul 26 16:40:58 vobd: Jul 26 16:40:58.890: 88286375827us: [vob.net.vmnic.linkstate.up] vmnic vmnic7 linkstate up.
  Jul 26 16:40:59 vobd: Jul 26 16:40:59.892: 88287384684us: [esx.clear.net.vmnic.linkstate.up] Physical NIC vmnic7 linkstate is up.
  

  Note: The example above uses the tail command to follow (-f) mode to observe the desired forensics in real-time (i.e. during your change).  Otherwise, to review historical linkstate changes that have already occurred, and then use the command cat first noted at the top of the pole.

• App Store network connection has been lost because

  MacBook air early 2015 El Capitan 10.11.6

  Regardless of the service providers network, firewall is turned off, I get "we couldn't complete your purchase. Network connection has been lost"message when I try to install any app from App Store.

  Any help appreciated.

  Try resetting the App Store and the deletion of Cookies.

  Reset       Taken from old Toad

• When I'm trying to connect to itunes, I get a message on my computer that says, we can complete your itunes application.  The network connection is lost.

  When I'm trying to connect to itunes, I get a message on my computer that says, we can complete your itunes application.  The network connection is lost.

  Try If you can not connect to the iTunes Store - Apple Support.

  TT2

• iPod touch will not got to some Web sites - "Safari cannot open the page because the network connection has been lost."

  Safari refuses to go to certain websites (facebook.com, youtube.com) on my iPod Touch and instead displays this error:

  S afari cannot open the page because the network connection has been lost.

  The bubble at the top where I typed in the URL doesn't change, it always says "facebook.com" or something else.

  No matter where I am, so it won't get fixed by resetting my home Wi - Fi router. Other sites load fine. I have reset the iPod, too, by pressing the sleep button and one on the front (whatever it's called) until I see the apple logo. I also did 'Story clear and data Web site' in the Safari settings.

  I searched the web and found a number of threads that start with similar complaints, but I can't find one where the problem has been resolved in fact.

  Thank you!

  Not "no matter where I am," means, it happens with all networks?

  If so:

  Try:

  -Reset the device iOS. Nothing will be lost

  Device iOS Reset: Hold down the On / Off button and the Home button at the same time for to

  ten seconds, until the Apple logo appears.

  -Reset all settings

  Go to settings > general > Reset and tap reset all settings.

  All your preferences and settings are reset. Information (such as your contacts and calendars) and media (such as songs and videos) are not affected.

  -Restore from backup. See:

  Restore your device from an iCloud or iTunes backup - Apple Support

  -Restore factory settings/new iOS device.

  If still problem, make an appointment at an Apple store Genius Bar because it appears that you have a hardware problem.

  Shop Apple Store - Genius Bar