Network problems suddenly with a NASNetwork, troubleshooting

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• ESXi network problem

  I have a strange problem of networking with ESXi, my infrastructure is described below:

  I'm under vCenter 5.5 on a VCSA (5.5.0 update 2d, Build 2442330). The environment is a mixture of ESXi 5.1 (especially U2) and 5.5U1a. We have 1 primary site with 5 sites all remote connected via GRE VPN tunnels, The VCSA is in the main site, each remote site has at least 1 ESXi server managed by the VCSA. Each remote site has independent internet so for each site, the basic router (which ends the GRE VPN) routes inside networks (essentially 10.0.0.0/8) through the tunnel and has a default route to the local firewall. ESXi boxes that are not configured with the router as the default gateway, none of the custom static routes have been added to ESXi.

  Two of my remote sites (a site has two servers ESXi, the other has a site) ESXi servers keep losing contact with vCenter. Nothing else on these networks is never a problem to talk to the main site, including talking to the VCSA. Three servers are different versions of 5.1. Here's what I've done for troubleshooting:

  1. ESXi can ping on virtually any host through the tunnel to the main site with the exception of the VCSA.
  2. I isolated my network management in ESXi to a physical NETWORK card and made a SPAN on the switch port, a capture of packets revealed that when the rattling of the VCSA ESXi put the packet on the wire with a destination MAC of the firewall. For all the other hosts on the main site of subnet ESXi sends the packet with a destination MAC address of the core router. Packet capture on ESXi itself (using tcpdump-uw) shows the same thing.
  3. The ARP tables on all hosts show correct MAC addresses for the router base and the firewall.
  4. Make a "vmkping - I vmk0 - N < core router > < VCSA >" succeeds (destination MAC is correct in this case).
  5. Add a static route to ESXi to the address of the VCSA force it to the top of base does not work, ESXi continues to send the packet to the Mac static routes these firewall have been removed after the failed test of workaround.
  6. Restart the host will solve the problem for a short time.

  Some info:

  These three server 1 is an IBM x 3300 M4 using Intel I350 GB network cards, the other two are R620s from Dell. The R620s each have 1 4-port Broadcom BCM5720-1 4 Intel 82580 ports. IPv6 has been disabled on all three hosts. Right now vmk0 is linked to an Intel NETWORK card on three servers, but barely I started to watch it, so I don't know if we saw the problem with vmk0 with a Broadcom.

  The Dells are inherited, so we have not done installs it but I reinstalled one of them yesterday (it was 5.1 U2 I reinstalled 5.1 U3) at the request of support for VMware. Support noted that the firmware and drivers were outdated and did not meet the HCL for those who have been updated when I reinstalled.

  IBM has been purchased and installed by our care last summer, firmware and drivers correspond to this LIST with the exception of the version of the BIOS that is a future release (it corresponds to the HCL for 5.5).

  I have a pension case, SR 15633456803. Initially, they tried to blame the network. Although it is clear to me that this is not a network problem, I put a case of Cisco in any way. Cisco has quickly threw the evidence I had gathered and made the same determination. The only way that this could be a network problem is with ProxyARP. ProxyARP is disabled on my firewalls, ESXi has correct ARP tables and when you talk to anything on the main network, in addition to the VCSA it sends the packet to the MAC address so clearly not a question of ProxyARP. At this point VMware said essentially that they are running out of ideas. I hope my reinstalled host stay online for more than a week, then I'll reinstall the other two hosts and call it a day if all goes well, but I'm preparing for the possibility that may not happen.

  We never seen anything like this or have any ideas?

  I understand the problem, ESXi does not correctly release the generated ICMP redirects. You can force the issue by restarting the vmk0 interface (or any port of kernel VM is your management interface) VMware KB: Internet control management protocol redirects, because a permanent fix I will disable ICMP redirects on my routers.

• Problems with the windows troubleshooting utility. Error code: 0 x 80070002

  Original title:

  Problems with the windows troubleshooting tool

  Whenever I run the Troubleshooting Guide for things like a problem of wireless network I get this error

  An error occurred during troubleshooting:
  An unexpected error has occurred. The Troubleshooting Wizard can not continue.
  Identifier of the package: PeformanceDiagnostic
  Path: No Local package
  Error code: 0 x 80070002
  Source: engine
  User: SCOTTSLAPTOP\Scott
  Background: high

  Hello

  1. the problem occurs with all the troubleshooters you trying to run?
  2. why you try to run the troubleshooter?

  3. Since when are you facing this problem?

  Note:
  You can back up data to an external hard drive and no CD. It is essential to back up data even if you do an inplace upgrade.

  You can try to do an inplace upgrade and check if this gives a probable solution.
  Check the following link to see how to perform an inplace upgrade.
  http://support.Microsoft.com/kb/2255099

  I hope this helps.

• Your server suddenly put an end to the connection. The possible causes for this include server problems, network problems, or a long period of inactivity.

  Your server suddenly put an end to the connection. The possible causes for this include server problems, network problems, or a long period of inactivity. Topic "business profile]', account:"pop.bizmail.yahoo.com", server:"smtp.bizmail.yahoo.com"', Protocol: SMTP, server response: ' 451 see http://pobox.com/~djb/docs/smtplf.html. ', Port: 25, secure (SSL): no, Server error: 451, error number: 0x800CCC0F"

  Your server suddenly put an end to the connection. The possible causes for this include server problems, network problems, or a long period of inactivity. Topic "business profile]', account:"pop.bizmail.yahoo.com", server:"smtp.bizmail.yahoo.com"', Protocol: SMTP, server response: ' 451 see http://pobox.com/~djb/docs/smtplf.html. ', Port: 25, secure (SSL): no, Server error: 451, error number: 0x800CCC0F"

  You must make a few changes, not only on outgoing parameters, your incoming parameters also need changes.

  Open your e-mail program > tools > accounts > your bizmail account > properties > servers, under outgoing mail server, check "this server requires authentication" > apply > advanced, under outgoing (SMTP) mail change to 465 not 25. Put a check mark on "this server requires a secure connection (SSL)" > under incoming (POP3) mail, change it to 995 no 110. Put a check mark on "this server requires a secure connection (SSL)" > OK

  t-4-2

• Unable to connect to Wi - Fi network - 'problem with wireless adapter or access point '.

  When I try to connect to the network Wi - Fi Home I get error like:- Windows cannot connect.

  When I click on solve problems I see error below :-'problem with wireless adapter or access point '.

  We reinstalled OS

  We rested the router

  We are able to connect to Wi - Fi in other laptops, notebook and mobile

  We have updated all the drivers of network also.

  Please help me solve the problem.

  Hi Niranjan,

  Thank you for your support. In fact, the problem is with the Router Configuration, because with any other router device, we are able to connect to Wi - Fi in the laptop.

  Thank you

• Network problem between Windows 7 laptop with the Windows XP desktop computer via Linksys WRT54 router.

  Original title: network problem!

  How can I get my laptop with Windows 7 Home Edition to connect to my desktop with Windows XP on it. I have a router Linksys WRT54 plugged directly to the desktop via ethernet and my laptop has an excellent signal but I can't access programs or the printer with it. I know the 'host group' on 7 but XP isn't that. Are there alternative than to put 7 on my desktop? Any suggestions?

  Thank you!

  Hello

  Thanks for posting your query in Microsoft Community and we give the opportunity to help you.

  According the description of the problem face you connection problems in Windows 7 laptop with the Windows XP desktop computer via Linksys WRT54 router.

  Residential group option is available on Windows 7 and Windows 8 operating systems. However, you can see the following article for more information on the connection of Windows 7 and Windows XP computers:

  Networking of computers running different versions of Windows

  http://Windows.Microsoft.com/en-in/Windows7/networking-home-computers-running-different-versions-of-Windows

  Hope this information helps. For any other corresponding Windows help, do not hesitate to contact us and we will be happy to help you.

• Outlook Express 6: your server has unexpectedly ended the connection. The potential causes for this include server problems, network problems, or a long period of inactivity. Error number: 0x800ccc0f

  Original title: Windows XP and Outlook Express 6

  I have a new computer with outlook express and went through the set up instructions.  When I tried to send a test email, I got this error message:

  "Your server has terminated suddenly the connection. The possible causes for this include server problems, network problems, or a long period of inactivity. Account: 'pop.mail.yahoo.com', server: 'pop.mail.yahoo.com', Protocol: POP3, Port: 110, secure (SSL): Yes, error number: 0x800CCC0F. »

  How can I fix this error message and have e-mail sent via Outlook?

  Hi Jeanette Logan,
   
  Here is an article that addresses this issue. Follow the steps listed in the article for this problem:
   
  Troubleshooting error messages that you receive when you try to send and receive e-mail in Outlook and Outlook Express

• HP Pavilion Notebook-15-p108tx: problem connecting with specific programs

  Hi, I had problems connecting with specific programs recently. I'm still able to communicate online through web browsers. Mozilla Firefox works fine, but Google Chrome still has some problems loading of specific pages or they don't load at all. The main programs I am having difficulties with are mainly games platform programs like Steam, Battle.net, and League of Legends, and I'm unable to go online or to connect to their servers.

  I never had no problem connecting like these last two years that I've owned my laptop, until recently. I think it was the 6th or 7th of may these problems started.

  I updated my drivers and was constantly check to download the most recent. I don't know if it's my internet provider, but I was also constantly check the State of the network to ensure that the services are very good.

  If anyone else has this problem and if there are any suggestions that you think could help solve this problem, it would be appreciated.

  Thank you

  Jasper

  Hi Jasper,.

  Thank you for the update. I think that your computer have a rootkit infection. Most of them were inside of the Chrome Extensions.

  Here's what you need to do.

  Open chrome

  Click on the Menu bar in the upper right

  Click more tools

  Click Extensions

  Please search for suspicious extensions that does not belong to the computer, especially ads. Once you identified, simply click the trash can icon then Chrome close then reopen it again to see if you can connect to your desired game. If this isn't the case, then proceed as follows.

  Manual removal of suspicious files (if you are uncomfortable with it. If this is not the case, then run System Restore from safe mode with command prompt)

  Manual removal (I miss the old days of MS virus removal )

  Go to RUN type %temp% , and then delete all folders by pressing SHIFT + DELETE

  Go to Control Panel and then locate all the apps that you think a form of ads

  Go to safe mode with network. Run Malwarebytes in that State

  Then run Tweaking tool to fix everything that has changed since your computer

  http://www.Tweaking.com/files/setups/Tweaking.com_windows_repair_aio_setup.exe

  If your not comfortable with the troubleshooting steps may perform the system restore on the day, it was working fine.

• Wireless network is displayed with a cross and will not let me connect saying the settings for this network do not match the requirements of the networs and it is a hidden network how to make it visible again?

  hardware device

  my wireless network is displayed with a cross and will not let me connect saying settings for this network do not match the requirements of the networs and it is a hidden network how to make it visible again :(

  Hello

  What operating system installed on the computer?

  Note: Look for errors in the network card device manager.

  Method 1: Follow the article mentioned below, if you are using Windows 7 operating system.

  Using the troubleshooter from network in Windows 7

  http://Windows.Microsoft.com/en-us/Windows7/using-the-network-troubleshooter-in-Windows-7

  Method 2:

  He looks at the IP address and other parameters are not set correctly, I suggest you contact your Internet service provider or provider router wireless to help on this.

  For more information, follow the below mentioned article:

  Set up a wireless router:

  http://Windows.Microsoft.com/en-us/Windows7/set-up-a-wireless-router

  Follow the below mentioned articles and see if they help you:

  Set up a wireless network:

  http://Windows.Microsoft.com/en-us/Windows7/setting-up-a-wireless-network

  Wi - Fi and in Windows network connection issues:

  http://Windows.Microsoft.com/en-us/Windows/help/wired-and-wireless-network-connection-problems-in-Windows

  Wireless network card: frequently asked questions:

  http://Windows.Microsoft.com/en-us/Windows7/wireless-networking-frequently-asked-questions

• Cannot download the software due to a network problem

  Hi all I'm on MacBook Pro (retina, 15 inches, end of 2013).
  I try to install Windows 10 with the version downloaded from the Microsoft Web site.
  I finished uploaded and am trying to use Boot Camp to install Windows 10.
  However, I faced a question and it is that he "cannot download the software due to a network problem".
  I'm stuck here for an hour and I can't find a solution.
  I did all right until now by the following online tutorial but it prevents me to continue.
  Any help will be appreciated.
  Thank you.

  It is a very common problem. To fix this, first try to start your Mac in safe mode by following these steps-> safe mode try if your Mac does not commissioning - Apple Support

  Then, restart your Mac as usual and try to download the Windows support software again.

• A network that extends with AirPort Extreme is causing Internet failure.

  A network that extends with AirPort Extreme is causing Internet failure.  When I unplug the extreme internet works fine.  What is the problem?  The extreme old used to be the main, but I reset when I bought the new Time Capsule.  Time Capsule is now the principal.  We had extensive network in the House for over a year with no problems until I put the Capsule in the mixture.  Why they arrive as well as the other?

  Is AirPort Extreme 'extension' of the network by wireless connection to the Capsule of time... or... AirPort Extreme connects to time Capsule using an Ethernet cable connection?

• HP Officejet 6700: HP Officejet 6700 Premium all in one network problems

  Printer = printer HP e-all-in-one Officejet 6700 Premium
  Model = H711n
  Number of product = CN538A
  Firmware version = MPM5CN1450AR
  Location = Ireland
  Printed pages total: 152
  Scanned pages: 58

  Other details available on request...

  I've had this printer for several months now, I have had no problem connecting to my wireless network and connect computers, telephones and other equipment to this.

  A few days earlier, when starting the printer display flashes with the useless error message, error in the printer, turn the printer off and back on.

  I have power cycled as requested and received the same message, over the power of the cycle he mentions turning off the power button and no DISCONNECT of the sector. Until then I had never disconnected from the sector. After that I have several attempts to power cycle the printer is off and removed the sector, has waited half an hour and powered on again once.

  Still stuck in a loop. He also briefly flashed a blue screen with the error B81431CB. So brief that it is almost useless. I had the boot sequence video and pause playback to read error!

  After some research, I decided that she was experiencing problems connecting to the WIFI network. So, I turned the wifi on the router and the printer network started as usual. Internal menus are now available and I can print status and so forth, so at this point I can exclude defects of ink or mechanism.

  I went in on the printer network settings and reset the network. I'll also through the printer to factory default settings. I have reactivated the WIFI network to the router then went to install the printer again. Digitized for wifi networks and found mine. Entered the password for wifi and the printer could not connect. Everything is good, correct ssid, signal. Report shows wifi password is incorrect.

  I have try several times to connect wifi password is certainly correct, but the printer refuses to recognize the correct password. I tried a different router, the same result. Says incorrect password. Also I tried WPS and a PIN, said still fails to connect.

  At this point, I have disabled all security on the wifi network. Bingo, printer connects to the network, but starts with the loop of error mentioned at the start of the tour and turn it back on. This above has been tried several times, the factory reset, everything ok, turn off the wifi security, the printer connects and goes in a loop.

  So, at this point wifi is confirmed to be defective. I decide to directly connect a LAN cable. Once the LAN cable is connected, a few seconds later the printer detects the network and goes back into its loop error. It will not just connect to a network via wifi or LAN. He previously worked on the network, and nothing has changed on the network, not new parameters or no new devices.

  I connected a laptop to the printer via USB and that seems to work ok, but a USB connection is not ideal and defeated the convenience of a wireless printer. I also tried to reflash the printer in case there is a corruption of the firmware, but the utility detects that the latest firmware is installed and that it is not engaged.

  Now...?

  OK I managed to make it work and I will try to explain the steps of my best.

  As mentioned previously, I tried another router, I tried the wiring, and I tried to reset the router and the printer. Nothing seemed to work.

  Out of curiosity I just put my phone in a WIFI AP. Tried connecting the printer and it worked. The printer connected to the WIFI phones.

  So I know that the printer works on at least one access point.

  Thus, in the settings of the router and firewall. The only thing enabled in the firewall have been

  IPv4 firewall protection

• Cannot install updates due to temporary network problems

  Hi need help please teporary network problems are interfering with windows update

  Read this: http://social.answers.microsoft.com/Forums/en-US/vistawu/thread/1467f44b-ee27-4f7d-98d7-f1c4b35b3395

  Help us help you.

  Is this relevant: you may encounter temporary connection related errors when you use Windows Update or Microsoft Update to install updates
  http://support.Microsoft.com/kb/836941

  Harold Horne / TaurArian [MVP] 2005-2011. The information has been provided * being * with no guarantee or warranty.

• Solitare opens suddenly, with cards staked in a stack to the top left corner. I was not able to detach them to play a game. Help!

  Solitare opens suddenly, with cards staked in a stack to the top left corner.  I was not able to detach them to play a game.  Help!

  Hi Perren7,

  Use the (SFC.exe) System File Checker tool to determine which file is causing the problem and then replace the file. To do this, follow these steps:

  1. open an elevated command prompt. To do this, click Start, click programs, accessories principally made, right-click Guest, and then click Run as administrator. If you are prompted for an administrator password or a confirmation, type the password, or click on allow.

  2. type the following command and press ENTER:

  sfc/scannow

  3. the sfc/scannow command. analyzes all protected system files and replaces incorrect versions with appropriate Microsoft versions.

  How to use the System File Checker tool to fix the system files missing or corrupted on Windows Vista or Windows 7

  http://support.Microsoft.com/kb/929833

  If that is not enough then try to create a new user account and check what is happening. To create a new user account

  1. to open user accounts, click the Start button, select Control Panel, click user accounts and parental control, and then click user accounts.

  2. click on manage another account. If you are prompted for an administrator password or a confirmation, type the password or provide confirmation.

  3. click on create a new account.

  4. type the name you want to assign to the user account, click an account type, and then click on create an account.

  If the new user account works fine then the old account has been corrupted, you can follow the link given below to fix the corrupted user profile.

  Difficulty of a corrupted user profile

  http://Windows.Microsoft.com/en-us/Windows7/fix-a-corrupted-user-profile

  Hope this information is useful.

  Amrita M

  Microsoft Answers Support Engineer
  Visit our Microsoft answers feedback Forum and let us know what you think.

• Go off & on several times before the monitor turns on. Comp seems to start OK but the problem is with the screen.

  Original title: XP start help please...

  ... are to be turned off & on several times before monitor lights. Comp seems to start OK but the problem is with the screen. Do I have to make a boot disk & if so - HOW?

  Hello

  ·         What is the brand and model of the computer?

  ·         You get the error message?

  ·         Did you check the connection of the cable to the monitor?

  ·         Have you tried to update to the latest graphics card and motherboard chipset drivers?

  First, try to connect your monitor to a well known PC, maybe the old laptop that you use now. If the monitor works, the problem is with the video card in your PC. If the monitor does not light, the monitor. It is usually cheaper to buy a new monitor that in order to be an old repaired, unless the monitor is still under warranty.

  Try connecting a monitor well known to your PC. If the monitor works, your old monitor is fried and needs to be replaced.

  If your monitor works when connected to another PC, the problem could be your video card. First, and then you turn on your PC, the power and cooling case fans run they. If they do not, it could be the power supply.

  Then, open the computer case. Before you do anything inside, unplug the power supply.

  IMPORTANT! Touch any metal part of the computer case to connect to the PC. A single static spark can destroy computer circuits.

  If the video card is the type of card that plugs into a slot on the motherboard, remove the screws or attached at the top of the card, remove the card, to manipulate the card by the edges to avoid disturbing the circuits on the card, carefully and re - install the card. Sometimes simply reinstalling the card corrects the problem.

  If this does not work, replace the video card with a card of similar type. Perhaps now is the right time for an update of video card.

  If the video card is integrated into the motherboard, you can install a new card in one of the PCI slots on the motherboard. When the PC starts for the first time, go into the bios and disable the onboard video.

  Resources for troubleshooting problems in Windows XP

  http://support.Microsoft.com/kb/307960