Urgent Network Issues

Discussion in 'Wireless Networking' started by Don, Mar 4, 2010.

  1. Don

    Don Guest

    Hello, around last month we started to lose lan connections to our NAS.
    We wanted to replace it anyways since it was old and did not have
    encryption.

    So we moved the data to the boses machine and we have still experienced
    lan drop out so here is a list of what has been tried and replaced.


    1. router replaced
    2. switch replaced 2x
    3. switched out machines new machines still drop
    4. added new nas nas still drops
    5. changed from wired to wireless still drops
    6. changed network cards. still drops


    Please help.
     
    Don, Mar 4, 2010
    #1
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  2. Don

    Don Guest

    On 3/4/2010 7:04 AM, Frankster wrote:
    > Try turning off ALL power saving settings on ALL connected computers.
    >
    > -Frank
    >
    > "Don" <> wrote in message
    > news:...
    >> Hello, around last month we started to lose lan connections to our
    >> NAS. We wanted to replace it anyways since it was old and did not have
    >> encryption.
    >>
    >> So we moved the data to the boses machine and we have still
    >> experienced lan drop out so here is a list of what has been tried and
    >> replaced.
    >>
    >>
    >> 1. router replaced
    >> 2. switch replaced 2x
    >> 3. switched out machines new machines still drop
    >> 4. added new nas nas still drops
    >> 5. changed from wired to wireless still drops
    >> 6. changed network cards. still drops
    >>
    >>
    >> Please help.

    >

    Forgot to mention did that, for network adaptors no power saving is
    enabled and even changed power settings for windows to always on
     
    Don, Mar 4, 2010
    #2
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  3. Hi
    Changing from Wire to wireless is not necessarily a general indication.
    Start by connecting two computer to the switch with new commercially made
    wires.
    Jack (MS, MVP-Networking).

    "Don" <> wrote in message
    news:...
    > Hello, around last month we started to lose lan connections to our NAS. We
    > wanted to replace it anyways since it was old and did not have encryption.
    >
    > So we moved the data to the boses machine and we have still experienced
    > lan drop out so here is a list of what has been tried and replaced.
    >
    >
    > 1. router replaced
    > 2. switch replaced 2x
    > 3. switched out machines new machines still drop
    > 4. added new nas nas still drops
    > 5. changed from wired to wireless still drops
    > 6. changed network cards. still drops
    >
    >
    > Please help.
     
    Jack [MVP-Networking], Mar 4, 2010
    #3
  4. Hi

    Please drop the microsoft.public.msmq.networking newsgroup from the thread
    as the MSMQ guys won't be able to help as much as the other networking
    newsgroups already involved.

    Cheers
    John Breakwell (MSFT)

    "Jack [MVP-Networking]" <> wrote in message
    news:%...
    > Hi
    > Changing from Wire to wireless is not necessarily a general indication.
    > Start by connecting two computer to the switch with new commercially made
    > wires.
    > Jack (MS, MVP-Networking).
    >
    > "Don" <> wrote in message
    > news:...
    >> Hello, around last month we started to lose lan connections to our NAS.
    >> We wanted to replace it anyways since it was old and did not have
    >> encryption.
    >>
    >> So we moved the data to the boses machine and we have still experienced
    >> lan drop out so here is a list of what has been tried and replaced.
    >>
    >>
    >> 1. router replaced
    >> 2. switch replaced 2x
    >> 3. switched out machines new machines still drop
    >> 4. added new nas nas still drops
    >> 5. changed from wired to wireless still drops
    >> 6. changed network cards. still drops
    >>
    >>
    >> Please help.

    >
     
    John Breakwell, Mar 5, 2010
    #4
  5. Don

    Don Guest

    seems my messages weren't getting through. I connected the computers
    static ips to the switch with new cables and they still drop.

    IS there a program i can install on the computer to monitor the network
    and report what happens like wireshark? would wireshark be good to trac
    what computer is causing the network to drop?

    On 3/4/2010 8:40 AM, Jack [MVP-Networking] wrote:
    > Hi
    > Changing from Wire to wireless is not necessarily a general indication.
    > Start by connecting two computer to the switch with new commercially
    > made wires.
    > Jack (MS, MVP-Networking).
    >
    > "Don" <> wrote in message
    > news:...
    >> Hello, around last month we started to lose lan connections to our
    >> NAS. We wanted to replace it anyways since it was old and did not have
    >> encryption.
    >>
    >> So we moved the data to the boses machine and we have still
    >> experienced lan drop out so here is a list of what has been tried and
    >> replaced.
    >>
    >>
    >> 1. router replaced
    >> 2. switch replaced 2x
    >> 3. switched out machines new machines still drop
    >> 4. added new nas nas still drops
    >> 5. changed from wired to wireless still drops
    >> 6. changed network cards. still drops
    >>
    >>
    >> Please help.

    >
     
    Don, Mar 6, 2010
    #5
  6. <SWAG> Do you have your switch plugged into a good UPS?

    --
    -Ben-
    Ben M. Schorr, MVP
    Roland Schorr & Tower
    http://www.rolandschorr.com
    http://www.officeforlawyers.com/outlook.html
    Author: The Lawyer's Guide to Microsoft Outlook 2007:
    http://tinyurl.com/ol4law-amazon

    "Don" <> wrote in message
    news:...
    > Hello, around last month we started to lose lan connections to our NAS. We
    > wanted to replace it anyways since it was old and did not have encryption.
    >
    > So we moved the data to the boses machine and we have still experienced
    > lan drop out so here is a list of what has been tried and replaced.
    >
    >
    > 1. router replaced
    > 2. switch replaced 2x
    > 3. switched out machines new machines still drop
    > 4. added new nas nas still drops
    > 5. changed from wired to wireless still drops
    > 6. changed network cards. still drops
    >
    >
    > Please help.
     
    Ben M. Schorr, MVP, Mar 6, 2010
    #6
  7. Don

    Don Guest

    sorry that was in my earlier messages that were never posted for some
    reason.

    drop means you will lose connectivity to the devices eg you can no
    longer ping them, depending they will come back up after 2 minutes or
    longer. sometimes they don't come back up without a restart or power cycle.

    On 3/6/2010 8:08 AM, Frankster wrote:
    > I asked before but never saw an answer. What do you mean by "drop"?
    > Can you describe the exact symptoms?
    >
    > -Frank
    >
    > "Don" <> wrote in message
    > news:...
    >> seems my messages weren't getting through. I connected the computers
    >> static ips to the switch with new cables and they still drop.
    >>
    >> IS there a program i can install on the computer to monitor the
    >> network and report what happens like wireshark? would wireshark be
    >> good to trac what computer is causing the network to drop?
    >>
    >> On 3/4/2010 8:40 AM, Jack [MVP-Networking] wrote:
    >>> Hi
    >>> Changing from Wire to wireless is not necessarily a general indication.
    >>> Start by connecting two computer to the switch with new commercially
    >>> made wires.
    >>> Jack (MS, MVP-Networking).
    >>>
    >>> "Don" <> wrote in message
    >>> news:...
    >>>> Hello, around last month we started to lose lan connections to our
    >>>> NAS. We wanted to replace it anyways since it was old and did not have
    >>>> encryption.
    >>>>
    >>>> So we moved the data to the boses machine and we have still
    >>>> experienced lan drop out so here is a list of what has been tried and
    >>>> replaced.
    >>>>
    >>>>
    >>>> 1. router replaced
    >>>> 2. switch replaced 2x
    >>>> 3. switched out machines new machines still drop
    >>>> 4. added new nas nas still drops
    >>>> 5. changed from wired to wireless still drops
    >>>> 6. changed network cards. still drops
    >>>>
    >>>>
    >>>> Please help.
    >>>

    >>

    >
     
    Don, Mar 6, 2010
    #7
  8. Don

    Don Guest

    On 3/6/2010 2:23 AM, Ben M. Schorr, MVP wrote:
    > <SWAG> Do you have your switch plugged into a good UPS?
    >

    yes. relatively new apc ups (around 1 year old)
     
    Don, Mar 6, 2010
    #8
  9. Don

    DOon Guest

    On 3/6/2010 4:05 PM, Frankster wrote:
    > Okay, after reading everything you've done in this thread, there's not
    > much more you can do.
    >
    > However, one thing comes to mind. If this is on a VOIP system, this
    > could be it. This one caused me undue grief for a number of hours
    > troubleshooting until I got to the bottom of it. It was the SIP "ALG"
    > service in my router. I had to disable it. I found out after I had
    > already tried another router, like you. Before I disabled it, I could do
    > a continuous ping and get back something like...
    >
    > ping...
    > no response
    > <delay of 5 seconds or so>
    > one response
    > no response
    > no response
    > no response
    > no response
    > response!
    > <delay of 3 seconds>
    > no response
    > response!
    > response!
    > response!
    > no response
    > no response
    > no response
    > <delay of 10 seconds>
    > response!
    > no response
    > etcetera...
    >
    > ...was driving me crazy...
    >
    > Turned out what I had to do was to disable ALG support in the router
    > (Netgear in my case).
    >
    > Check out this link...
    >
    > http://www.voip-info.org/wiki/view/Routers SIP ALG
    >
    > Anyway, other than that, I'm out of ideas, considering what you have
    > already changed.
    >
    > -Frank
    >
    > "Don" <> wrote in message
    > news:...
    >> Hello, around last month we started to lose lan connections to our
    >> NAS. We wanted to replace it anyways since it was old and did not have
    >> encryption.
    >>
    >> So we moved the data to the boses machine and we have still
    >> experienced lan drop out so here is a list of what has been tried and
    >> replaced.
    >>
    >>
    >> 1. router replaced
    >> 2. switch replaced 2x
    >> 3. switched out machines new machines still drop
    >> 4. added new nas nas still drops
    >> 5. changed from wired to wireless still drops
    >> 6. changed network cards. still drops
    >>
    >>
    >> Please help.

    >

    no voip system here. However I am changing every network card in the
    systems and seeing if that works. Right now all machines have a static
    ip and are connected to a switch with no router and seeing if any thing
    drops. every machine is also being tested one at a time connected to the
    switch and NAS with a large data file being transferred to see if it
    causes any problems.
     
    DOon, Mar 6, 2010
    #9
  10. Don

    Don Guest

    On 3/3/2010 9:32 PM, Don wrote:
    > Hello, around last month we started to lose lan connections to our NAS.
    > We wanted to replace it anyways since it was old and did not have
    > encryption.
    >
    > So we moved the data to the boses machine and we have still experienced
    > lan drop out so here is a list of what has been tried and replaced.
    >
    >
    > 1. router replaced
    > 2. switch replaced 2x
    > 3. switched out machines new machines still drop
    > 4. added new nas nas still drops
    > 5. changed from wired to wireless still drops
    > 6. changed network cards. still drops
    >
    >
    > Please help.





    Ok it turned out 3 network cards were bad, one router had massive packet
    loss, and one network cable needed to be replaced. After all that was
    fixed systems ran great until...

    the receptionists computer decided to die and it sent a surge through
    the network killing off everything that was fixed.

    Replaced everything again switch survived and they are now up.
     
    Don, Mar 9, 2010
    #10
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