Trent Shipley wrote: > Benjamin Francom wrote: >> On Tue, Dec 22, 2009 at 7:18 PM, Mark Phillips >> 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 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. >>>> >>>> --------------------------------------------------- >>>> PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us >>>> To subscribe, unsubscribe, or to change your mail settings: >>>> http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss >>> --------------------------------------------------- >>> PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us >>> To subscribe, unsubscribe, or to change your mail settings: >>> http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss >>> >> 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 >> --------------------------------------------------- >> PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us >> To subscribe, unsubscribe, or to change your mail settings: >> http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss > > 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' --------------------------------------------------- PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us To subscribe, unsubscribe, or to change your mail settings: http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss