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Delayed Network connection

Discussion in 'Networking (Hardware & Software)' started by HappyAndy, 2006/09/16.

  1. 2006/09/16
    HappyAndy

    HappyAndy Inactive Thread Starter

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    I connect to the internet through a Speedtouch 580 Router. This is hard wired via a 5 Cat cable (standard network stuff) to the PC. I also have a laptop which links to the Internet via wireless. Running XP Home. Use BT Yahoo Internet services.

    A problem has recently occurred where it takes the PC 15 minutes to view anything connected to the network/internet. And when I say 15 minutes I mean 15 minutes not 14 mins 30 secs but exactly 15 mins. Every time I log on, there is this delay.

    I ran the Network Diagnostic tool for Windows XP, it says checking connectivity, and then fails. After the 15 minutes, it finds no problems.

    During the 15 Mins

    I CAN ping external IP addresses... This baffles me

    I cannot open Network connections or any program that links to the internet, i.e Internet Explorer, Norton Internet Security

    After the 15 Mins, all the programs try to start. Most succeed.

    I have uninstalled the Norton Internet Security, Windows firewall is disabled (Norton covers that normally), I have replaced the network card.

    Oh ! and the laptop, wirelessly, connects everytime in seconds.

    The only thing I have not managed to do is prevent BT wireless Connection Manager from loading. Why it loads first everytime I do not know. This also cannot be exited until after the 15 mins has elapsed.

    Does any one have any ideas as to what is blocking this.

    Thoughts appreciated
     
  2. 2006/09/16
    Bill Castner

    Bill Castner Inactive

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    If XP Pro with Service Pack 2 installed:

    Start, Run, netsh winsock reset.

    Wait for the prompt to restart your computer. Restart your computer.
    Test.

    If not using XP Service Pack 2, download, unzip to a new folder and run WinsockFix:

    http://www.tacktech.com/pub/winsockfix/WinsockFix.zip

    Restart and test.
     

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  4. 2006/09/17
    bilbus

    bilbus Inactive

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    netbios take 15 min for anoucements to be sent out.

    how about dns names .. is this on a dns network?
     
  5. 2006/09/17
    Bill Castner

    Bill Castner Inactive

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    Are you referring to the time it takes for new elections to sort themselves after starting the Computer Browser service, and the new service wins the election as Master Browser?

    "After you install this service, allow up to 15 minutes for the server to appear in the browse list. To refresh the current browse list, click Refresh on the View menu. "

    http://support.microsoft.com/kb/q134304/

    The NetBT broadcasts are done immediately by the client, not after fifteen minutes. Microsoft notes that in a complex setting with multiple end points the new redirector for XP Service Pack 2 can take up to fifteen minutes to create a new Browser Master listing.

    This has nothing to do with Netbios broadcast intervals by the client. It has to do with throttles placed on the Master Browser to avoid unecessary elections and unecessary broadcast traffic. The client should appear immediately on the client machine and in remote workstations, although if Network Places is open a Refresh would be needed.
     
  6. 2006/09/18
    ReggieB

    ReggieB Inactive Alumni

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    Can you ping by name rather than IP address during the 15 minutes? For example:

    ping www.windowsbbs.com
     
  7. 2006/09/18
    HappyAndy

    HappyAndy Inactive Thread Starter

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    Bill - Tried the netsh winsock reset. Whilst it ran its course, the problem still remained. Yes I have got Service Pack 2

    Bilbus - Not fully understanding terminology. This is a simple Computer to ADSL Router set up. Running XP Home, so I am guessing Domain Names are used somewhere but whether it is classed as a DNS Network, I would not know.

    Reggie B - Yes I can ping Google.co.uk and Yahoo.co.uk using their names after the ping command during the 15 mins. Likewise when using their numbers (IP Address). Some names don't work like microsoft.com but I guess that is down to them rather than my machine

    Thanks to all above for your contributions

    Meanwhile I have swapped the CAT5 cables, and the port (where I plug the cable in !!) used in the router.

    I also noted that whilst I can select Network Connections and it thinks about it for a while with the hour glass then disppears, if I then open up another program (say Program X), after the 15 mins the Network connections appears on the task bar before Program X.

    It seems to know the request has been made and where it sits in priority.

    Still wondering on cause...

    Regards
     
  8. 2006/09/19
    ReggieB

    ReggieB Inactive Alumni

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    If you can ping by name during the 15 minutes, this isn't a name resolution problem. I think the problem lies within your PC rather than on the network. However, one last test to confirm this:

    During the 15 minutes, go to the command prompt and try telneting to port 80 of an internet web site. For example:

    telnet www.google.com 80

    If this works you will get a blank screen. Type quit to exit, or wait for it to time out. If it fails you will get an error message telling you that telnet was unable to connect.

    This test will tell you that you can communicate to an internet site via port 80, and therefore this is unlikely to be a firewall issue. If the test succeeds I think we've narrowed down the problem to being a program or system within you PC causing the problem.

    I wonder if this is a problem with Internet Explorer or the systems related to IE. I expect the Symantec software may well share some of IE connection systems. Therefore, it might be worth seeing if you can get a connection with another Internet utility like Firefox. That might narrow the problem further.
     
  9. 2006/09/19
    Bill Castner

    Bill Castner Inactive

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    I am wondering if you are not seeing the results of high CPU usage, perahps by SVCHOST at startup.

    This can be due to Windows Update; any corruption in the EDB database can lead to approximately fifteen or so minutes of Windows Update scanning at 70% CPU or higher utilization. Test by disabling the Windows Update service for a day or so to see if there is a difference at startup. If so, Microsoft PSS has an unpublished KB Hotfix for this issue. Tell them you need KB919537 Hotfix. This is not a complete solution in some cases, but the issue with SVCHOST is a work in process at Microsoft.

    Another possibility is that your Antivirus or Anti-malware program is having some issues obtaining updates at start. Windows Defender, for example, can push ntoskrnl.dll to CPU utilization of 80% or more if there is an issue accessing its definition servers. Test by disabling the AV or Anti-malware update service for a day or so to see if it makes a difference.
     
  10. 2006/09/20
    ReggieB

    ReggieB Inactive Alumni

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    That's a good point. You should be able to detect the problem in Task Manager without disabling services.

    To open task manager go to run and enter:
    Code:
    taskmgr
    Then go to the Processes tab. This shows all running processes. If Bill is on to the problem (and the symptoms match this diagnosis), you should be able to detect the problem via this window.

    Firstly CPU usage (at the bottom of the screen - or on the Performance tab) will be very high (above 50%) and drop after the 15 minutes is over.

    The CPU column shows CPU activity for each process. So secondly you should see a particular process (other than the system idle process) regularly clocking high numbers in the CPU column. There is a good chance that the process name will lead you to the application that is causing the problem. If you don't recognise the process name, a google search will usually return enough information for you to work it out - or post it back here.
     
  11. 2006/09/20
    Bill Castner

    Bill Castner Inactive

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    Not if the CPU usage under Task Manager reports genericly that the process is SVCHOST or NTOSKRNL.DLL or similar.

    I am suggesting disabling the updates Service, and not the active scanning agents.

    Your comments are not responsive to the diagnostic steps suggested to the original poster.
     
  12. 2006/09/21
    ReggieB

    ReggieB Inactive Alumni

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    Yes, I agree that there is a reasonable chance that the task will be SVCHOST or NTOSKRNL.DLL. I was suggesting checking task manager before disabling services rather than instead of.
     
  13. 2006/09/21
    HappyAndy

    HappyAndy Inactive Thread Starter

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    Bill , Reggie Thanks for thoughts

    I can Telnet Google during the 15 minutes wait

    I have turned off both Microsoft Automatic updates and Symantec LiveUpdate as suggested. The initial reboot of the computer, turning off MS Update first and then both MS and Live Update showed no signs of a reduction in the 15 minute wait.

    Bill, you suggested that I leave it like that for a couple of days to see if it rights itself. I am assuming that the reboot will not immediately resolve the issue. This I will continue trying.

    I can access Task Manager by pressing Ctrl-Alt Del during the 15 minutes.

    SVCHost appeared 5 times with various "k's" used by each. I seem to remember searching on Google, in the early days, to find that multiple entries of this is not unusual. I noted that the Username was not shown during the 15 mins but shows up afterwards. 3 Operated by the SYSTEM , 1 by NETWORK SERVICE and 1 by LOCAL SERVICE

    Can I end these SVCHost processes without disasterous results ?

    Can I run a check to see if the EDB database is corrupt (I do not know what this is however)

    I also noted that CPU usage is only shown as 1-4% during the 15 mins unless I obviously undertake other tasks.

    I have stared for hours (made up of 15 min blocks) looking at the "Processes" page of Task manager and run google checks on all obvious names. YOP.exe etc. They all do not use much CPU Usage at all, often with Idle on 99%

    I will wait a few days on the auto updates and report back

    Thanks again
     
  14. 2006/09/22
    ReggieB

    ReggieB Inactive Alumni

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    When you "uninstalled the Norton Internet Security" did you uninstall Symantec Update?

    Have you tried installing Firefox to see if that works OK during the 15 minutes?
     
  15. 2006/09/28
    HappyAndy

    HappyAndy Inactive Thread Starter

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    Reggie

    Just installed Firefox... It works within the 15 mins. Immediately actually.

    Internet Explorer and Network connections still do not open so the problem exists although there is a way around it to get on the internet.

    So what does this actually mean ? The pinging proved that the outside world could be seen. Firefox works, IE etc does not. There is a conflict somewhere

    I am going to start to uninstall various software again and see if this clears the 15 min wait. In answer to your previous question, I did uninstall Symantec updat e and it currently remain switched off from updates per Bills suggestion.

    Report back later
     
  16. 2006/09/28
    ReggieB

    ReggieB Inactive Alumni

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    OK. I think we've narrowed the problem down to IE and its associated systems. Unfortunately they are used by a number of other applications. For example, Outlook will use the same system.

    I think that it is possible that a patch or IE update would fix the problem, but if you are already up to date, that's not much help.

    So I would next look at you IE settings to see if there is something misconfigured there (or pointing at an incorrect URL). These can be accessed from "Internet Option" on the Tools menu in IE.
    • Check that you haven't got an address set in the Proxy settings. Go to the connections tab and click on the "LAN Settings..." button. Remove any ticks from the tick boxes "Automatically detect settings ", "Use automatic configuration scritp ", and "User a proxy server for your LAN..... ".
    • On the connection tab, select "Never dial a connection" rather than "Dial when a network connection is not present ".
    • Go to the security tab and for both "Trusted sites" and "Restricted sites ", click on the "Sites" button and make sure that the addresses listed (if any) are correct.
    See how you get on with those settings.

    I wonder if you will find an incorrect proxy setting. It wouldn't surprise to change a proxy address without notice.
     

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