network woes

[Stephen]

Honestly have you tried connecting your Computer with the most issues
directly to the modem and see what changes. if it clears up it is with
network configuration and the router. if not its with the computer
itself and its configuration.

i would also look at what services you have turned on, for example if
you started turning on any services like DNS or DHCP that will cause
all sorts of fits.

On Tue, Dec 22, 2009 at 7:45 PM, Trent Shipley <tshipley at deru.com> wrote:
> Benjamin Francom wrote:
>> On Tue, Dec 22, 2009 at 7:18 PM, Mark Phillips
>> <mark at phillipsmarketing.biz> wrote:
>>> Trent,
>>>
>>> I ran into a similar problem today - my network slowed waaaaaaaaaaaaaay down
>>> on me. All I used was ping to methodically to check all the connections and
>>> found that a switch was reseting itself and dropping packets. Basically, I
>>> turn everything off, reset all the routers, cable modems, etc, and then turn
>>> on one piece of equipment at a time and ping to the main router to see if I
>>> can connect and if there is any packet loss. You can find a out a lot of
>>> information by being methodical and knowing your network topology.
>>>
>>> Good Luck!
>>>
>>> Mark
>>>
>>> On Tue, Dec 22, 2009 at 5:52 PM, Trent Shipley <tshipley at deru.com> wrote:
>>>> Somewhere my connection to the Internet is borken.  Load times take
>>>> forever.  It doesn't seem to effect the wireless client routers, but I
>>>> have had trouble on both the wired machines under Ubuntu 9.10 and
>>>> Windows Vista.  Sometimes the Linux machine effectively looses
>>>> connectivity with the Internet.  It comes back if I log out of my X
>>>> session and log back in ... most of the time.  I have a firewall router,
>>>> but effectively no household LAN since I've been too lazy to really
>>>> figure out how to configure the Ubuntu desktop machine as a primary
>>>> domain controller, then adjust it's firewall to suit.
>>>>
>>>>
>>>> I'd like an idiot friendly tool to help track this problem down,
>>>> preferably on the Linux machine which seems to experience the problem
>>>> most consistently.
>>>>
>>>> Baring a GUI tool friendly to mortal users, I am not above using the
>>>> @#$% command line and a text editor.
>>>>
>>>>
>>>> I am not too network savvy.  I have to look up the layers of the OSI
>>>> stack every time.  What is a reasonable diagnostic or fault tree for
>>>> approaching my symptoms.
>>>>
>>>> It is also worth noting that this problem seems to date back to
>>>> precisely when I upgraded from Ubuntu 9.04 to 9.10.
>>>>
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>>
>> Unplug all devices for at least one min.  Start with modem and work
>> your way up to the PC
>> The Vista and Ubuntu machines are separate machines, not a single dual
>> boot, right?
>>
>> tracert=windows
>> traceroute=linux
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>
> I have "rebuilt" the network a couple of times from the modem up.  My
> suspicion is focused on the Ubuntu desktop because of the coincidence
> that the problem started with a major upgrade.
>
> Yes. We have the following on the network ... not all at the same time.
> * Qwest modem, outside the firewall.
> * Netgear wired/802.11g wireless router. No evident problems with
> wireless connections.
> * Ubuntu 9.10 on Dell hardware.  Wired connection. (Main suspect)
> Thinking about putting in a new Ethernet card since I have it "in stock"
> anyway and it's doing me no good in the box.
> * Apple notebook.  Wired connection.
> ** Windows Vista.  Have seen some symptoms.
> ** OS X.  mild symptoms.
> * Apple notebook.  Wireless.  No known symptoms.
> * Apple iMac. Wireless  No known symptoms.
> * (Occasional) HP netbook running Ubuntu 9.10 netbook remix.  Wireless.
>  No known symptoms.
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-- 
A mouse trap, placed on top of your alarm clock, will prevent you from
rolling over and going back to sleep after you hit the snooze button.

Stephen