ESXi 4.1 lost any network connection

Similar Questions

• Updated IE7 to IE8 and lost my network connection, get the error "network cable is unplugged" which is not

  After upgrade, network display icon with a red X through it indicating "network cable is unplugged" - which is not.  System Restore gave me back IE7, but without two of the toolbars (I've since found the fix for this - but too late).  Tried a system restore and now completely lost internet connection - IE will not launch.  Always get the message "network cable is unplugged".   I have reset the modem, but nothing works... should I ask Microsoft, HP, or my service provider (Rogers)?

  Thank you

  Christine

  Hello MsC_99

  Check the modem on the back of the system where the cable ether net branch. Think you that shed light on this subject? If this is not the case then you may have a problem with the NIC or ether net cable may have problems. If you do this then try uninstalling and reinstaling the NIC in Device Manager. If you don't see the network adapter in Device Manager then try booing the system BIOS and make sure that he is seen here. Let me know what you find. Thank you.

• Satellite C650D lost ALL network connectivity

  Hi all

  My C650D is a little over a year old and yesterday lost the wifi and LAN connectivity. Even my modem high speed USB does not work! Flash drives plugged into the USB port still work, but Wireless does not work. I tried a wired LAN our broadband router connection, but who does not record either.

  I downloaded all the LAN and the adapter wireless and installed in accordance with instructions drivers - once again, nothing. I scanned my computer with AVG to date, and nothing appeared which would explain it.

  It's frustrating MEGA and I just can't cope. The day before, I noticed wake up the computer from sleep mode, I had limited connectivity wifi (no internet) and had to do a system restore to fix. The funny thing was, I noticed that, after the computer since a year, it there was only a single restore date, and which was the day before. I thought that the VIRUS!, hence the AVG scan, but as I said, nothing showed up.

  Clues?

  Hello

  Have you checked your router or modem for certain shortcomings because it s really strange that WLan and Lan stopped working at the same time.

• Help! Suddenly, I lost my network connection on VMWare Appliance

  Hello

  I have a Windows 2003 machine in function which I used for a while on my VMWare Player 2.5.3 - 185404

  Today, I realized that my machine is not able to connect to the network. When I go to Device Manager I see the following error message

  http://farm3.static.flickr.com/2457/3931458799_e70e7e98eb_o.jpg

  This device worked perfectly until a few hours ago. Can you please let me know how can I fix.

  -Check the event log and see if the unit threw a mistake somewhere...

  "- You can also you can stop the virtual machine and add"ethernet0.virtualDev ="e1000" ' to the. VMX file - allows you to convert the virtual Ethernet driver to use Intel Gigabit vnet, but you will need to install the driver for it.

  ./. If you liked my answer, remember to apply useful/correct points. TIA

• 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

• HP Pavilion HPE h8-1111: Deffective Network Connection (802.11n WLAN Broadcom adapter) - defective or software hardware

  I lost my network connection and I don't know where to go to fix it. If anyone has an idea where ho to continue, I have tried so many stage already that I am at a loss... Help

  My computer semi regularly acted by the loss of my internet on a whim. Basically, it can detect WIFI, no problem, shows the strongest signal for her also. just tells me that it cannot connect to WIFI when I try (even if he can ask me the password and can tell if I use one bad)

  I can't reprocude the question

  No significant changes to my computer because the issues started happening.

  Simple steps:

  -Recovery (before the first event) system does not alter

  -Router and modem are not the issue

  -Could you find not updated driver anywhere (even though this does not mean that they do not exist, but having only no internet with the pc makes it particularly tricky - also HP does not provide the )

  -Power management wasn't the question

  -J' tried forget network the many times this problem has occurred. He has not fixed it.

  Additional troubleshooting showed:

  -Reset the Winsock Catalog did not resolve the question more than once (emplying he did the first time I did).

  -Reset of TCP/IP, that does not solve the issue more far.

  My WIRELESS card is a Broadcom 802.11n

  Finally, the only thing that I can see (although I can easily miss something obvious) is my reinstallation of an old printer inkjet EPSON Workforce 545, which I am connected to my WIFI and my PC via USB (why I used wifi since I got cable?...) I do not know) a few days later, people who use the same network reported the act more as usual but I have not noticed anything on my end.

  -J' have been disconnected from the network to the printer and stopped using it.

  -J' found evidence of his feature wirless allgedly interfere with other devices here (search for entitled Review "bought two units for corn or work")

  http://www.CNET.com/products/Epson-workforce-545/user-reviews/

  -Usage guide also mentioned the possibility of non-zero of the interferingwith printer wireless (end of p.328) other devices:

  chrome-extension://oemmndcbldboiebfnladdacbdfmadadm/https://files.support.epson.com/pdf/wf545_/wf545_ug.pdf

  Edit 12/04/2016

  I ended up having to do a factory reset on my computer for unrelated reasons. To reconnect the original WLAN card, I don't have to use the USB adapter that I bought to solve my problem.

  Factory reset works if fails everything else! Solution without after all!

  Hiya

  Well I'm really ideas, I have revised the HOW2 and he is shown below, just in case it helps.

  

• "Unknown error" whenever I try to access the properties of the network connection

  Hi all

  whenever I try to access the properties of a network connection (e.g. via right click on 'Network'-> properties-> right click on a connection-> properties), type of connection according to what is, I get a message "Unknown error" box and I can't move forward.

  As a result, any setting of any network connection is not editable, more. For example, I wanted to force the IP of the local network of "assigned to DHCP" to "static" with an address fixed IP, but I can't.

  Another weird thing is that I even can't delete one of the existing network connections, even if there are a couple that are not in use for a long time...

  It should be noted that, apart from that, the network of connections work.

  What can cause this behavior, and that might be the way to solve the problem?

  I want to upgrade the system to SP3 but I am reluctant to take the plunge with such an "alive"... error
  As you may have already guessed, the system is running XP SP2.

  Thanks in advance,

  Concerning

  Yes, I am facing the same problem too. The error message says "an unexpected error has occurred." This problem started out with me a few weeks back and I was under the assumption that it was due to a virus attack. But even after a thorough cleaning session problem continues to exist.

  The problem - as mentioned above by the Bell, we can neither open the properties of a connection (i.e. Dial-up/LAN/WLAN), or remove or add a new connection. If you try to open the connection properties, all you get is the message "an unexpected error has occurred" and if you try to delete or add a connection - the system does not respond!

  Surely, this link worked for me. I hope it works for you Bell. Check it out.

  http://wdbuc.com/blog/2010/02/03/an-unexpected-error-occurred-when-you-right-click-on-a-network-connection-in-Windows-XP/

• 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.

• "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.

• 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

• 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...

• Questions of ESXi 5.1 ISCSI--&gt; cannot establish a network connection (continued)

  Hello world

  I had a problem there not too long ago (thread link below) where my ESXi hosts could not establish a connection with an IBM DS3500 on start up and "rescan", however their connectivity worked correctly without any problem after commissioning and when a "rescan" finished. We determined that the most likely cause was the unit IBM itself. However, I wasn't completely satisfied.

  In order to deepen the question and dismiss my guests being the problem, I created a unit ISCSI myself with two new hosts of ESXi 5.1 (version 1157734).

  ESXi signals that it cannot connect to the initiator ISCSI (network error) - but it can run virtual machines and browse data stores?

  The configuration is the following:

  Test environment:

  2 x ESXi 1157734 hosts

  1 x server Freenas ISCSI (ZFS R10)

  At the start of my ESXi hosts in the test environment, download the same error as our production environment. They also put on the same error message (in the event log) when I "rescan" map of the ISCSI software. However, once the scan is finished, I can't see any error message and everything continues as it should (Round robin, active active). I can get a brilliant flow also. It's as if the errors are almost... false positives?

  Example of the error message (test environment):

  Connection to the iSCSI target

  IQN.2011 - 03.org.example.istgt:iscsi on vmhba35

  @ vmk2 has failed. The iSCSI initiator couldn't

  establish a network connection to the target.

  error

  17/10/2013-08:33:35

  ESXi hosts are configured as follows:

  Test environment:

  • (ESXi hosts) Two network cards for ISCSI, one for VM traffic
    • NIC1: 10.20.20.2/24, NIC2: 10.30.30.2/24
  • (Freenas) Two network cards installed on the ISCSI device (dedicated to ISCSI traffic)
    • NIC1: 10.20.20.1/24, NIC2: 10.30.30.1/24
  • ESXi is set to round robin, which works properly (I can max on both ports at the same time)
  • Two VMKs are related to the ISCSI Software initiator and defined to dynamically discover the two ISCSI addresses
  • Unity of ISCSI and the hosts are not on the VLAN, the switch is dedicated to ISCSI traffic (However in the production, the two networks are separated by VLAN.) I removed the in the test environment to simplify everything)
  • The vSwitches (who hold a single VMK for ISCSI) are fixed:
    • "Promiscuous" mode: reject
    • Change of MAC address: accept
    • Forged passes: accept
    • The traffic shaping: disabled
    • No NIC teaming (obviously)
    • Each VMK inherits the settings of these

  Quick points:

  • My hosts use VMware approved NIC in my test environment. My production environment runs on full VMware hardware approved
  • Can I use ping of vmk join each each VMK ISCSI initiator
  • I can use the nc-z target_ip 3260 command to check connectivity to the port
  • The ISCSI test has two network adapters, each on 1 Gbps ports
    • I can get around 800mbps per port when copying lots of files (both ports are active)
    • I see no error in copying a large number of virtual machines around, or backup files
  • I only see errors on start up and "rescan".
  • I have two network adapters on each host ESXi dedicated for ISCSI. Each NETWORK card has a single VMK. A single mapped port on ISCSI, the other is mapped to port B (I used to have two VMKs by nic, but I removed that in order to simplify everything)
  • I have updated the firmware on our switch of production. No results
  • I've used 4 different switches in order to avoid a network problem. No results
  • I tested ESXi versions 5.0, 5.1 (799733 & 1157734), all have the same mistakes
  • The ISCSI ports are on different networks according to the VMware (I was told not to put on the same network VMKs)

  Any ideas? It's starting to drive me up the wall. Any help would be greatly appreciated

  I've seen several times in recent months and was beginning to think it is specific to the HP P2000 units because it's the only time wherever I saw him! I now believe that ESX/iSCSI rather than issues of driver or table.

  On my last install, I found that errors occur as soon as the table is connected, i.e. before any storage is displayed.

  Single host ESX, no guests. 2 Intel adapters to 2 HP past by dedicated HP P2000 1 GB table with all 8 wired ports.

  All roads are good, all lights are in the State expected.

  It did not affect the use of the storage in question to any site, so there has been no need / a momentum of any further investigation.

  B! 886y annoying however!

• 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.

• No network connection between the virtual machines on different hosts ESXi

  I have several 5.0 ESXi hosts in a cluster managed by vCenter Server 5 and I have network problems:

  1. [Host A] running a virtual machine can ping any other computer virtual running on the [host A] great!
  2. A virtual machine running on host [B] can ping any other virtual machine running on [B] home - very well!
  3. [host A] (from the ESXi console) can ping any virtual machine running on [B] home - even better!
  4. [B] home (from the ESXi console) can ping any virtual machine running [host A] - beautiful set!
  5. A virtual machine running [host A] can not ping any virtual computer running on host [B] and vice versa - bad, very bad!

  So basically the problem is that the virtual machines can communicate on hosts. It is a major problem that I need to fix, for obvious reasons.

  Networking on all hosts is configured exactly the same way: a unique and standard vSwitch with a pair of gigabit network cards grouped, vmkernels configured for the vMotion, NFS and network management and a group of ports configured for the VIRTUAL local area network used by the VMs. (vMotion works fine on hosts, storage vMotion works very well too.) All virtual machines are servers Windows (2003 and 2008).

  Reason #3 and #4 above, my assumption is that #5 must be the result of an ESXi/vCenter configuration issue and not a problem with the switches of material upstream. Is this a reasonable assumption?

  Whatever it is, can anyone offer suggestions on how can I fix? It is quite annoying as I'm pretty sure that these hosts are configured in the same manner as those of our production cluster, which does not at all these problems!

  Thanks in advance for any help you guys can provide.

  To be honest, it looks like a problem with your physical network-

  How is the physical network configured - are NIC connects it to the same physical switches? Are the virtual machines on the same subnet? If this is not the case, they are able to ping the gateway sbnet? Can you piing host IP address from the virtual machines?

  I also moved it to a forum more approiate.

• 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