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Connected but not online

I have XP home on my laptop, broadband, and a DUN provider, both connections working fine until a few weeks ago. Now I can establish a DUN connection but cannot browse or read mail with it. The broadband connection works fine, but if I reboot with the broadband cable plugged in, I again have a connection but cannot go online. The problem goes away if I unplug the cable, wait a few seconds, and plug it back in again. If I try the DUN connection, the broadband connection no longer works properly until I reboot (with the cable unplugged). I don't know if these problems are at all related, but I noticed them at the same time.Here is a brief summary of what I get from the Network Diagnostics Tool after a complete reinstallation:

1) Reboot with broadband cable connected:
DefaultIPGateway = 80.161.117.1(Same Subnet) (FAILED)
DHCPServer = 80.166.137.229 (FAILED)
 DNSServerSearchOrder (FAILED)
 193.162.153.164 (FAILED)
194.239.134.83 (FAILED)
IPAddress = 80.161.117.246 (PASSED)

2) Unplug and reconnect broadband cable:
DefaultIPGateway = 80.161.117.1(Same Subnet) (PASSED)
DHCPServer = 80.166.137.229 (PASSED)
DNSServerSearchOrder (FAILED)
193.162.153.164 (FAILED)
194.239.134.83 (PASSED)
IPAddress = 80.161.117.246 (PASSED)

3) Establish DUN connection
DefaultIPGateway = 195.232.48.20(Same Subnet) (PASSED)
DNSServerSearchOrder (FAILED)
 195.232.64.7 (FAILED)
 195.232.0.158 (FAILED)
IPAddress = 195.232.48.20 (PASSED)

I'm a bit hazy on the exact meaning of these diagnostics, so please give clear instructions if you need me to find more specific information.
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TurtleJane
Asked:
TurtleJane
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1 Solution
 
stevenlewisCommented:
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TurtleJaneAuthor Commented:
Thanks, forgot to mentioned I tried WinsockxpFix.exe, to no avail.
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cooljai1Commented:
I think you have a corrupted DUN setup. So, delete and then create a new DUN. You can see that after you establish the DUN connection, the default gateway and the IP address of the computer are the same and that could be the reason as to why it is not able to connect to the internet. It is routing the IP packets destined for the gateway onto itself.
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TurtleJaneAuthor Commented:
Thanks, tried that several times, before and after system reinstall.
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cooljai1Commented:
How did u reinstall? clean install or dirty?
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TurtleJaneAuthor Commented:
Clean, repartition, reformat and reinstall. I used the same system recovery CD that shipped with the machine, and with which things had been running "smoothly" in the past.
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stevenlewisCommented:
what firewall are you running?
try disabling it from startup and test
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TurtleJaneAuthor Commented:
Sygate - same results with firewall deactivated on startup.
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stevenlewisCommented:
does it happen if you boot to safe mode with networking?
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TurtleJaneAuthor Commented:
No, it does not, or at least the broadband connection is available on boot to safe mode without unplugging the cable - hooray. But I can't access DUN from safe mode, or at least I don't know how, so I haven't checked that.
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stevenlewisCommented:
OK, that gives us a clue
something is loading at startup in normal mode that isn't in safe mode
shut off any uin needed services as per this website
Try disabling unneeded services:

http://www.blackviper.com/WinXP/servicecfg.htm

http://www.techspot.com/tweaks/win2k_services/index.shtml


and go to start -->run and type msconfig
go to the startup tab, and uncheck all that  you can reboot and test
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stevenlewisCommented:
or you can boot to normal mode, press ctrl+alt+del and check the processes. write them down, then reboot to safe mode and compare
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MarakushCommented:
For a test:

click RUN|type MSCONFIG| click OK

Go to the tab STARTUP and click DISABLE ALL

It will ask you to reboot. Click YES

Now if its something that is starting up you will know after you finish booting...

If it is something in your startup try enabling one thing at a time and rebooting (Yea its a long process but it will work) until you find the program that is causing the issue.

Marakush
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AutoSpongeCommented:
When you have both connected, do a "route print" from the command line.  It will probably show that you have dual default routes with the same metric.  If that's so, you're going to need to go into the connection properties > general > TIC/IP Properties > Advanced and raise the metric for the gateway of one of the connections (probably DUN).  Then, if there is specifically one thing you need to get to with DUN, add that route as well using "route add" from the command line.
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TurtleJaneAuthor Commented:
OK, you're getting a bit ahead of me, here, still learning about services, but I'm assuming we're on the right track. I'll post again as soon as I'm sure of success or failure.
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stevenlewisCommented:
wish I had thought of msconfig..........
Oh wait, I did
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TurtleJaneAuthor Commented:
Indeed.
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TurtleJaneAuthor Commented:
Success - it turned out to be the Trend Micro Firewall, which had automatically installed itself when I upgraded my Trend Micro virus protection. As I mentioned, I'm already using a Sygate firewall, and had no idea there was another one running. Thanks for teaching me something new!
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stevenlewisCommented:
Glad we could help!
BTW don't ya love it when software installs extras without asking LOL
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TurtleJaneAuthor Commented:
Yeah, they obviously know what's best for me. But perhaps I'm expecting too much, running Trend Micro virus protection and a Sygate firewall under an MS operating system. After all, if I put a Eureka bag and Hoover attachments on a Sears shop vac, it would probably still really suck, too.
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