Trent Shipley wrote:
> Benjamin Francom wrote:
>> On Tue, Dec 22, 2009 at 7:18 PM, Mark Phillips
>> <mark@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@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.
That's helpful.
I really doubt the upgrade was a cause of any kind, given that your
Apple notebook (other wired) connection also experiences problems.
Have you tried alternate wired ports on the Netgear router? Sometimes a
single port/plug can be defective. The whole wired side of the router
might be failing as well.
Do you have a switch you can put in place of the wireless router to see
if the problem persists?
Does your DSL modem do dhcp/nat? (most do these days)
--
-Eric 'shubes'
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