I've discovered what the problem was. When I looked at the arp table of one of the windows 7 machines the default gateway was different than the gateway on all of my other machines. Upon further investigation, there was a home bought router that somebody stuck in so that they could have wireless in their classroom. What they didn't do was configure it to have a different ip than my GW. Grr that is the type of thing that makes me so frustrated. Then the complain when things don't work the way they should. If they would leave my stuff alone and let me configure the device then all would be well.
Jared Lynn PORTA CUSD #202 Technology Coordinator On Sep 11, 2010, at 4:20 PM, Aaron Hackney <aa...@aaronhackney.com> wrote: > Are the arp requests from the affected workstations completing? Are > the entries on the arp table on the FW and on the workstation? What > does a wireshark sniff say? > > Vista did the same behavior reaching out to a web site to determine if > the Internet was available. I believe there is an option or a regedit > to turn it off... > > On Sat, Sep 11, 2010 at 3:33 PM, <hay...@sages.us> wrote: >> Thanks for the info, Tom. This will help. >> >> >> Quoting "Steele, Thomas C" <tste...@manteno5.org>: >> >>> We have been seeing something similar off and on with our Win7 machines - >>> the network & sharing center would show that we did not have a connection to >>> the Internet, even though everything looked good in ipconfig /all and the >>> system tray would have a warning symbol on the network icon. After some >>> extensive internet research via google, I found a lot of possible causes... >>> >>> 1) It seems Vista and Win7 have some kind of "phone home" pinging >>> mechanism that the OS uses to determine if it is reaching the Internet. If >>> the sites or at least responses from those sites that the OS is looking for >>> do not get returned to the workstation, then the OS assumes that it has no >>> connection to the Internet, though internal connections to the LAN are fine. >>> It is conceivable that a firewall/filter (such as IPCop) might be blocking >>> the sites the OS is trying to hit to determine if it has Internet >>> connectivity. If this is the case, it should show up in a wireshark trace >>> but I have not tried it to confirm. >>> >>> 2) Some reported a specific issue with Symantec Endpoint Security (again, >>> possibly related to Symantec's local firewall - we don't use Symantec so >>> that was not our issue). >>> >>> 3) Apple's Bonjour service has been reported to cause this kind of >>> activity (though it was not installed on the machines we were having issues >>> with that I am aware of) >>> >>> 4) Problems with older versions of Intel's NIC drivers (ours were most >>> recent, though) >>> >>> 5) Problems with IPv6. By default Vista and Win 7 have native support for >>> both IPv6 and IPv4. If the rest of the network is only configured for IPv4 >>> some have suggested disabling IPv6 on the client. This did the trick for us >>> on one problematic workstation (running our access control software, which >>> may also have been part of the problem). >>> >>> In our case this is very sporadic and seems to have pretty much gone away >>> (maybe something fixed in a Windows update?). When it does occur, I have >>> found that disabling and re-enabling the network connection seems to work. >>> >>> -TS >>> >>> >>> -----Original Message----- >>> From: tech-geeks-boun...@tech-geeks.org >>> [mailto:tech-geeks-boun...@tech-geeks.org] On Behalf Of hay...@sages.us >>> Sent: Saturday, September 11, 2010 10:07 AM >>> To: Tech-Geeks Mailing List >>> Subject: Re: [tech-geeks] Vista/7 not connecting to network >>> >>> For those of us who are using IPCop, it looks like it is time that we >>> either find a solution for this issue - it arose in our district again >>> last week with two new laptops running Windows 7 - or find a >>> replacement for IPCop that does not have this issue. >>> >>> Now, if one of us comes up with a solution we need to agree so >>> share........ >>> >>> >>> Quoting Charlie Niehaus <cnieh...@altamont.k12.il.us>: >>> >>>> I have (soon had I hope) the same issue with Windows 7 and IPCop. >>>> Never did find a solution. There are tohers that did not see the >>>> issue with IPCop and Windows 7 - so I am assuming it is either a >>>> configuration issue with IPCop (Best Bet) or somthing with a switch >>>> along the way. i was lucky enough to solve it by giving the >>>> computer in question an external IP and trusting the user (My >>>> Superintendent) to not break any AUP rules. Not sure how that is >>>> going though. >>>> >>>> ----- Original Message ----- From: "Jared Lynn" <jl...@porta202.org> >>>> To: "Tech-Geeks Mailing List" <tech-geeks@tech-geeks.org> >>>> Sent: Friday, September 10, 2010 12:19 PM >>>> Subject: [tech-geeks] Vista/7 not connecting to network >>>> >>>> >>>>> I'm hoping somebody on here has experienced this and has a solution >>>>> to this very annoying problem. I have a couple of newly purchased >>>>> windows 7 machines and a single vista machine that are trying to >>>>> connect to get past my Router. DHCP hands out a valid IP and points >>>>> to the right places but from there, the Default Gateway doesn't >>>>> acknowledge that the machine exists. I can ping and access all >>>>> internal servers but can not ping the Default Gateway. FYI, the >>>>> Default Gateway is our CIPAFilter that has no problems with XP or >>>>> OS X 10.6. Any comments or thoughts as to what might be occurring >>>>> would be greatly appreciated. >>>>> >>>>> As always, You stay Classy Internet. >>>>> Thanks, >>>>> Jared Lynn >>>>> PORTA CUSD #202 Technology Coordinator >>>>> Email: jl...@porta202.org >>>>> Phone: 217-501-4920 >>>>> >>>>> | Subscription info at http://www.tech-geeks.org | >>>>> >>>> >>>> | Subscription info at http://www.tech-geeks.org | >>>> >>> >>> >>> >>> >>> | Subscription info at http://www.tech-geeks.org | >>> | Subscription info at http://www.tech-geeks.org | >>> >> >> >> >> >> | Subscription info at http://www.tech-geeks.org | >> > > > > -- > "Don't ask yourself what the world needs. Ask yourself what makes you > come alive and then go do that. Because what the world needs is people > who have come alive." -Dr. Howard Thurman > > ****************************** > Aaron Keith Hackney > aa...@aaronkeithstudios.com > Cell 210.325.2196 > ****************************** > | Subscription info at http://www.tech-geeks.org | | Subscription info at http://www.tech-geeks.org |
