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Unstable Ethernet Connection *very confused*


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#1
King Lud

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Hello,

Recently installed three netgear ethernet bridge plugs - initially without a hitch.

One computer still works fine.

However, the other one recently lost all connection to the internet and returned the message:

LAN or High Speed Internet
Limited or no connectivity
VIA Compatible Fast Ethernet Adapter


According to Windows Task Manager: Network Utilz 0%, Link Speed 100 Hbps, State Operational

Network Connection Details assigned a value to Physical Address, IP Address and Subnet Hash but no value to DNS Server and WINS Server

Computer attempted to repair the connection by renewing the IP address but failed.

Windows could not finish repairing the problem because the following action cannot be completed:
Renewing your IP address


Default IP Gateway not available according to system summary

However, I adopted the usual 'superstitious' remedy and switched the computer/ethernet bridge off and then on again at the socket. This time, IE is working (relief) but Firefox isn't. Not even in safe mode.

I'm confused by this and remain worried that something isn't right. When I ran XP 'Network Diagnostics' (with IE working) I was told that "Network Adapters: [00000001] VIA Compatible Fast Ethernet Adapter FAILED"

However:

Limited Area Connection
Connected
VIA Compatible Fast Element Adapter


Advanced System Information:

Internet Explorer/Connectivity:

Connection Preference: Never dial
LAN Settings: Blank
AutoConfigProxy: wininet.dll
AutoProxyDetectMode: Enabled
AutoConfig URL: blank
Proxy: Disabled
Proxy Server: Blank
Proxy Override: Blank


My current Local Area Connection Status is Connected (Assigned by DHCP, whatever that means!)

My Default Gateway is slightly different from my IP address. Does this matter?

Btw, just to add to the mix, I have Norton Anti-Virus installed. And service provider is AOL(!). Also apparently something called “Symantec Network Proxy” is running. Might this be relevant? *well, it's worth a try*

Trying to think what prompted Firefox to fail, I am a little worried this could be the result of my mucking about with a Tor, Privoxy and Vidalia bundle yesterday. I have now deleted/uninstalled these components to the best of my ability.

Hopeless, I know. (Me, not the machine!)

All assistance greatly appreciated. Thanks so much for your help! :-)
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#2
jaxisland

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Could you please go to the machines, go to Start - Run
Type: cmd
Hit enter
In the command box window please type: ipconfig/all

Post the entire result for the machines.

Thanks
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#3
King Lud

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Okay, here is the problem one first:

Windows IP Configuration
Host Name: Anon
Primary Dns Suffix: blank
Node Type: Unknown
IP Routing Enabled: No
WINS Proxy Enabled: No

Ethernet adapter Local Area Connectiopn: blank
Connection-specific DNS Suffix: blank
Description: VIA Compatible Fast Ethernet Adapter
Physical Address: Anon
Dncp Enabled: Yes
Autoconfiguration Enabled: Yes
IP Address: Anon
Subnet Mask: Anon
Default Gateway: Anon (2 Below IP)
DHCP Server: Anon (2 Below IP)
DNS Servers: Anon (2 Below IP)
Lease Obtained: 16 May 2007: 10:31:41
Lease Expires: 17 May 2007: 10:31:41

(Really don't understand that last bit! What) lease?

And here's the 'normal' one (Firefox working fine):

Host Name: Anon
Primary Dns Suffix: blank
IP Routing Enabled: No
WINS Proxy Enabled: No
Ethernet adapter Local Area Connection: blank
Connection-specific DNS Suffix: blank
Description: Intel <R> PRO/1000 MT Network Connection
Physical Address: Anon
IP Address: Anon (1 Below Upstairs Computer)
Subnet Mask: Anon
Default Gateway: Anon (Same as Upstairs Computer)
DHCP Server: anon (Same as Upstairs Computer)
DNS Servers: Anon (Same as Upstairs Computer)
Lease Obtained: 16 May 2007 11:13: 55
Lease Expires: 11:13:55

Do hope you can make some sense of this ;-)

Thanks!
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#4
jaxisland

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It looks like you are receiving your IP information from a DHCP source. Do you have a router or switch that you are connected to that has DHCP enabled?

Also can you figure out what IP scheme that you are using and try to set the IP manually?
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#5
diabillic

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Can you define the term "Anon", maybe its something im just missing. Try disabling the Norton, stop the Symatec Proxy Service, set your IE and FF browser settings to default and reboot.

Then give us another "ipconfig /all" output.

To disable Norton from starting: Start -> Run -> "msconfig". 2nd to last tab on the right is Startup, uncheck anything that is located under \Program Files\Symantec

To disable the Symantec Proxy Service: Start -> Run -> "services.msc". Find Symantec Proxy Service in there, right click it goto properties. Change the service type from Automatic which its probably set at to "Disabled".

Good luck! Let us know what happens.
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#6
King Lud

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Just wanted to thank you all for your help and apologise for wasting your time.

I finally realised that Firefox had been configured to connect via a proxy and the proxy software had since been deleted.

So I fixed the problem in 'Tools/Options/Network/Connection/Settings'.

I suppose I'm a warning of what can happen when you try to walk before you can run. Thanks again! :whistling:
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