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November 11th, 2003 17:00

Internet not working!

hi!  I have a Dell Dimension 4300 series, and I have recently had trouble accessing the internet.  I am connected to a LAN through my apartment building at school and two of my roommates and I are plugged into a hub that works, because both of their computers are fine when connected, it is only my computer that is not working.  I am plugged in and when I click on Internet Explorer and the page shows that says the page cannot be displayed and I cannot connect to AOL instant messenger.  I have gone through the Tools and Options through Internet Explorer to make sure it still has that i'm connected through a LAN and that seems fine and I looked to make sure the ethernet card was still working properly and it says it is.  I cannot figure out what is wrong!  Please help!!

2 Intern

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2.2K Posts

November 12th, 2003 15:00

Is there a link light present next to the network jack on the back of your system when you connect the cable to the hub? If not, within the network card's properties, set the Speed and Duplex to the specific speed and duplex settings you desire. For example, if you have 100mbit-capable switches, try hard-setting your NIC to 100mbit Full Duplex, instead of Auto Negotiation.

If a link light is present, click Start, then click Run. Type CMD into that field, and click OK. Then, type IPCONFIG /ALL and press Enter. What is your IP address? If no problems can be detected here, copy and paste the text provided by that command into a reply post.

2 Intern

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12K Posts

November 12th, 2003 18:00

My first guess is that if three users are connected to a WAN thru a hub, then some sort of IP Address conflict is occuring between the three machines.  You really need a router in there to offer some firewall protection and provide DHCP.

10 Posts

November 12th, 2003 22:00

Okay, well I looked on the back of my system and the lights are present, there are two green lights, left one blinks, right one does not.  I tried to change the speed and duplex and nothing changed.  The icon in my taskbar shows that I am connected to the network, but within 5 minutes of being connected, i checked the status and only 226 packets were sent, while 196 packets had been received.  Shouldn't that have been like in the thousands by then?

I did that command stuff and this is what resulted:

Microsoft Windows 2000 (Version 5.00.2195)

Windows 2000 IP Configuration

Host Name......: MYCOMPUTER

Primary DNS Suffix.....:

Node Type.....: Hybrid

IP Routing Enabled......: No

WINS Proxy Enabled.....: No

DNS Suffix Search List.....: bard.pa.net

Ethernet adapter Local Area Connection:

Connection-specific DNS suffix...: bard.pa.net

Description....: CNet PRO200WL PCI Fast Ethernet Adapter

Physical Address.......: 00-80-AD-76-7C-1C

DHCP Enabled......: Yes

Autoconfiguration Enabled......: Yes

IP Address......: 10.0.6.167

Subnet Mask......: 255.255.252.0

Default Gateway......: 10.0.4.1

DHCP Server.....: 10.0.0.1

DNS Servers........: 205.166.61.140          205.166.61.160

Lease Obtained..........: Wednesday, November 12, 2003 5:16:12 PM

Lease Expires........: Thursday, November 13, 2003 5:16:12 AM

I really don't know what any of that means....but there it is.

 

And about the hub/router thing...the network we are connected to doesn't support routers, so we have to use the hub.  I used the hub last year and everything worked fine with it.  And my computer worked for about a month when connected through the hub, just one day it decided to stop working.

Thanks so much!

Kayla

2 Intern

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12K Posts

November 12th, 2003 23:00

With an IP Address of 10.0.6.167, your subnet mask should be 255.240.0.0.  Is this machine set for a Static or Dynamic Address?

10 Posts

November 13th, 2003 00:00

that's a good question, i have no idea.  is there anyway i can look to find out?

2 Intern

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12K Posts

November 13th, 2003 00:00

Go to My Network Places>Right Click>Properties

Find Your Local Area Connection Listed and Right Click.Properties

Scroll Down thru the list of protocols and find TCP/IP.  Highlight and Click Properties......it will either say Obtain Address Automatically (Dynamic) or use this Address (Fixed).

November 13th, 2003 09:00

Key information shown on your output is DHCP - Enabled and this info

IP Address......: 10.0.6.167

Subnet Mask......: 255.255.252.0

Default Gateway......: 10.0.4.1

Firstly the IP address, subnet mask and default gateway are valid and correct, because you have a /22 bit mask, with a network address of 10.0.4.0...on 10.0.6.167......so is fine. Also I could see you have a DNS suffix and IP address of DNS server.

Lets do some basic IP (Internet Protocol) Network checks first.
.
(1) Assuming all the above are okay can you ping the router "Start - Run - command"....this will open a DOS shell window for your - white on black.......just issue the command "ping ip_address" where Ip_address is the default-gateway (router = 10.0.4.1) IP address. You should get a "Reply in X ms" if all is well

(4) Post the results to help the diagnosis be completed.then try a "ping www.dell.com" and a "tracert www.dell.com" to see if basic Ip connectivity and DNS (Domain Name Server) are working correctly.

10 Posts

November 13th, 2003 14:00

okay, first to jmwills, i did what you suggested and it came up that it was obtained automatically.

 

and to sentinel-master - i tried that and when i typed in the ping ip_address and hit enter it said Unknown host ip_address and then i tried the ping www.dell.com and it also said Unknown host www.dell.com

 

i wish i knew more about this computer stuff, it would probably be a whole lot easier for me!

Thanks a bunch to everyone for helping!!

November 13th, 2003 15:00

Please make sure you actually put a dotted decimal Ip address in like below....try these below and paste responses here

ping  10.0.4.1

ping 66.111.4.62

2 Intern

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12K Posts

November 13th, 2003 17:00

Ping the NIC by going back to the Command Prompt:

ping 127.0.0.1

 

If you get a response then at least we can rule out a bad Network card.

10 Posts

November 14th, 2003 16:00

yea, i tried using my roommates cable which works when plugged into her computer and it didn't make any difference.

10 Posts

November 14th, 2003 16:00

Okay, here are some of the results I received when running the command:

C:\>ping 10.0.4.1

Pinging 10.0.4.1 with 32 bytes of data:

Reply from 10.0.4.1: bytes=32 time=16ms TTL=64

Reply from 10.0.4.1: bytes=32 time=16ms TTL=64

Reply from 10.0.4.1: bytes=32 time=16ms TTL=64

Reply from 10.0.4.1: bytes=32 time=16ms TTL=64

Ping statistics for 10.0.4.1:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

Minimum = 16ms, Maximum = 16ms, Average = 16ms

C:\>ping www.dell.com

Unknown host www.dell.com.

C:\>tracert www.dell.com

Unable to resolve target system name www.dell.com.

and then i did the one for the NIC:

C:\>ping 127.0.0.1

Pinging 127.0.0.1 with 32 bytes of data:

Reply from 127.0.0.1: bytes=32 time<10ms TTL=228

Reply from 127.0.0.1: bytes=32 time<10ms TTL=228

Reply from 127.0.0.1: bytes=32 time<10ms TTL=228

Reply from 127.0.0.1: bytes=32 time<10ms TTL=228

Ping statistics for 127.0.0.1:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

Minimum = 0ms, Maximum = 0ms, Average = 0ms

 

that's all the information i have!  Thanks for helping

2 Intern

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12K Posts

November 14th, 2003 16:00

You can rule out a bad network card.  It appears to be something wrong with either DNS or WINS, probably DNS.  There was another another post this week from either Paladin or Volcano about renaming the Hosts file.  Let's research and see if the situation is similar.

Have you tried another ethernet cable?

Message Edited by jmwills on 11-14-2003 01:34 PM

November 15th, 2003 08:00

The ping to your defautl router 10.0.4.1 has proved that its not a Local Area Network problem, so your NIC, IP address and router are fine. The porble is defintely due to DNS - Domain Name Servers - these are the magically servers which translate names www.dell.com into the phone numbers of the Intenet (IP addresses)....the dotted decimal numbers.

So I would recommend trying to unbind IP from your NIC - get to NEtwork adaptors and simply remove "TCP/IP for Ethernet", close all windows and reboot.

Then simply re-add TCP/IP to this Ethernet adaptor after re-boot - this should re-stall IP. along with DNS ...and hopefully resolve issue.

10 Posts

November 17th, 2003 13:00

okay, well i went into the local area network properties and i uninstalled the TCP/IP, then restarted my computer and went back in there and re-installed it.  i don't know if that was the same thing as finding the Network Adapters or not, but what I did didn't make anything better, so I will look again for the network adapters on my computer and try this again if i find it, and see if it will help.
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