Invalid Ip Address

[Taijitu]

Please help me.

My TOT ADSL Internet (1024/256 BestCyber) connection has been trouble free for more than 2 years .......until this afternoon that is!!!!!

I'm unable to connect to the Internet now and receive the message "Server not found" on each successive attempt.

I've tried to connect to Windows Live Messenger and it fails every time and reports the Error Code 80072ee7. Running the "Troubleshooter", I get the message "Your machine appears to have an invalid IP Address".

I've tried to repair the connection by right clicking the Internet Connection icon at the bottom right corner of the display with no success. Also, the TCP/IP Properties window confirms that an IP Address and DNS Server Address will be selected automatically (boxes checked).

Looking elsewhere, my IP Adress appears to be a series of zeros!

I use Windows XP Pro (SP2) with a 4-port TOT router (which works perfectly as my daughter can access the Internet easily).

I've tried to look through other technical forums and I'm totally confused as my layman's knowledge of all of this isn't deep enough to understand what's gone wrong. Thank you for your help as I know there are some clever and helpful ThaiVisa members out there.

[Crossy]

First thing to try is to turn everything off, router and all. Then turn on the router (wait for it to finish doing its self test) followed by your PC.

I never cease to be amazed at how often this fixes the most stubborn of faults

[Prasert]

You should not have an icon for "internet connection" but for "LAN connection"

The TOT box should give you a 192.168.1.xxx address. Since the setup seems to work fine on your daughters computer, the problem is very likely on yours. Checks the settings on your daughters computer for the LAN interface, and make sure you have the same setup on your computer.

Also try switching the cables between both computers. You might have a broken pair in the network cable.

[Guest Reimar]

To first try to check that you have an IP!

Go to Start click on Run, insert CMD follow by enter in the command line and on the Dos Windows which should pop up please type: ipconfig /all That should give you the infos about you Computer IP, Modem IP/Gateway and DNS addresses. Take a look at the picture:

If you dont see that numbers (example in pic: 10.0.0.5, 10.0.0.2, 203.144.207.29 and 203.144.207.49 your may differs) than you have some problems with your Network adaptor!

Cheers.

[dsys]

I would reboot first.

Here is how I normally trouble shoot these kind of issues, you can apply it to your own system.

I know my pc has a fixed ip of 192.168.2.4. My router is 192.168.2.1. My dns server is 192.168.2.3 my internet gateway is 192.168.5.100.

1. ping 127.0.0.1 - the loopback address for my pc (yours will be the same) This tests the lan card

2. ping my computer ip adresss 192.169.2.4 This tests that I have been assigned my ip - if this fails disable and re-enable the connection

3. ping the router 192.168.2.1 - if this fails check the connection to the router, the router power and reboot it.

4. ping the internet gateway 192.168.5.100. - if this fails same as 3

5. ping my dns server - 192.169.2.3 - if this fails same as 3

6. ping my static internet address - not going to post it here but its the one o the wan side of the internet gateway. If this fails , same as 3.

7. do a nslookup for google.com - checks the dns server records

8. ping google.com - if this fails and all others passed - probably a network issue.

hope that helps in trouble shootin these issues.

Edited February 22, 2008 by dsys

[jstumbo]

You should not have an icon for "internet connection" but for "LAN connection"

You can rename it to anything that you want. I regularly rename connections on my computer to tell me which is on the internet and which is on the lan (dual homed)

[jstumbo]

To first try to check that you have an IP!

Go to Start click on Run, insert CMD follow by enter in the command line and on the Dos Windows which should pop up please type: ipconfig /all That should give you the infos about you Computer IP, Modem IP/Gateway and DNS addresses. Take a look at the picture:

If you dont see that numbers (example in pic: 10.0.0.5, 10.0.0.2, 203.144.207.29 and 203.144.207.49 your may differs) than you have some problems with your Network adaptor!

Cheers.

And if the IP address is 169.254.x.x, then that is also a problem. Probably means that you cannot get to the DHCP server.

[Guest Reimar]

To first try to check that you have an IP!

Go to Start click on Run, insert CMD follow by enter in the command line and on the Dos Windows which should pop up please type: ipconfig /all That should give you the infos about you Computer IP, Modem IP/Gateway and DNS addresses. Take a look at the picture:

If you dont see that numbers (example in pic: 10.0.0.5, 10.0.0.2, 203.144.207.29 and 203.144.207.49 your may differs) than you have some problems with your Network adaptor!

Cheers.

And if the IP address is 169.254.x.x, then that is also a problem. Probably means that you cannot get to the DHCP server.

If that's happens, then there isn't a DNS Server IP.

[Taijitu]

Many thanks to all for your help.

I've tried turning everything off, router and back on but no improvement. Whilst looking through "Device Manager" information via Control Panel, I noticed an explanation mark beside the PCI Simple Adapter. I checked the properties and it tells me that ther is no driver installed. I re-installed the driver from the CD ROM but the exclamation mark is still showing!!!!!

Do I buy a new PCI ethernet card and hope that will cure the problem. Mr. Reimar could be right.

Following Mr. Reimar's advice, I checked ipconfig/all and received the following information:

Ethernet adapter Local Area Connection

Description D-Link DFE-528TX PCI Adapter

Physical Address 00-11-95-61-17-51

Dhcp enabled Yes

Autoconfiguration enabled Yes

IP address 0.0.0.0

Subnet Mask 0.0.0.0

Default Gateway

DHCP Server 192.168.1.1

DNS Server 192.168.1.1

NetBIOS over Tcpip Disabled

[Taijitu]

Please help me if you can!!!!!

This thing has gone from bad to worse. I bought a new ethernet card and fitted it. My computer booted up and found the new hardware and started to install the driver (or so I think!). I had placed the driver CD in the CD-Rom drive and my router was switched on.

The monitor icon at the bottom right corner of the screen did not appear but a small bar graph appeared and the message was "aquiring network address". I waited and waited with no further developments. I shut down my computer and rebooted..........now it will not start up other than give me a continuous beeping. Also, the message on the monitor says "NO VIDEO INPUT" but I guess that's not surprising. The beeping is steady and each beep is about one second in length with intervals of about one second.

What's gone wrong?

Edited February 25, 2008 by Taijitu

[dsys]

Sounds like you got a driver conflict or adressing problem.

Just checking - was the original NIC actually a PCI card or was it built into the motherboard?

I'd take out the new NIC and see if you can reboot into safemode.

The beep codes you describe sound like the description for a system board or power supply problem. (based on the classic IBM codes) Google your Motherboard and find the manual - check the definition for your specific mother board.

Thinking out loud-

hmmm system board proble coupled with "no video input" - sure you didn't remove the graphics card? Is your monitor plugged into the correct connector? Is the video card seated properly?

[Taijitu]

Sounds like you got a driver conflict or adressing problem.

Just checking - was the original NIC actually a PCI card or was it built into the motherboard?

I'd take out the new NIC and see if you can reboot into safemode.

The beep codes you describe sound like the description for a system board or power supply problem. (based on the classic IBM codes) Google your Motherboard and find the manual - check the definition for your specific mother board.

Thinking out loud-

hmmm system board proble coupled with "no video input" - sure you didn't remove the graphics card? Is your monitor plugged into the correct connector? Is the video card seated properly?

Hi dsys,

Yes, the original NIC was a plug-in D-Link PCI card and not built in to the main board. My computer was able to boot the first time after I installed the new PCI. Since then, I have tried to boot with this new card, with the original card and with no card at all. Each time, the keyboard lights flash, the hard disk whirrs, the two DVD-ROM drives light up but then nothing happens other than the bleeping. The main board LEDs are lit also.

I can't boot into safe mode, I can't do anything other than listen to the pesky bleeps!!!!

I didn't remove the graphics card and, just to check, I removed it and reseated it.

The monitor is plugged into the correct connection.

Maybe it is the main board that is gradually handing in its soup plate!!!! It's 7 years old now!!!

Many thanks for your help and advice dsys...... this just started with a problem with my IP address!!!!

[dsys]

Sounds like you got a driver conflict or adressing problem.

Just checking - was the original NIC actually a PCI card or was it built into the motherboard?

I'd take out the new NIC and see if you can reboot into safemode.

The beep codes you describe sound like the description for a system board or power supply problem. (based on the classic IBM codes) Google your Motherboard and find the manual - check the definition for your specific mother board.

Thinking out loud-

hmmm system board proble coupled with "no video input" - sure you didn't remove the graphics card? Is your monitor plugged into the correct connector? Is the video card seated properly?

Hi dsys,

Yes, the original NIC was a plug-in D-Link PCI card and not built in to the main board. My computer was able to boot the first time after I installed the new PCI. Since then, I have tried to boot with this new card, with the original card and with no card at all. Each time, the keyboard lights flash, the hard disk whirrs, the two DVD-ROM drives light up but then nothing happens other than the bleeping. The main board LEDs are lit also.

I can't boot into safe mode, I can't do anything other than listen to the pesky bleeps!!!!

I didn't remove the graphics card and, just to check, I removed it and reseated it.

The monitor is plugged into the correct connection.

Maybe it is the main board that is gradually handing in its soup plate!!!! It's 7 years old now!!!

Many thanks for your help and advice dsys...... this just started with a problem with my IP address!!!!

oh dear - youppear to be able to get to POST(power on self test) are you getting to the BIOS, do you see the hit del/esc to enter bios config message?

i guess you can't - if you cant and all the connectors / cards are correctly seated and the CMOS battery is not discharged I guess the MB has died. If your MB is 7 years old try replacing the battery first if that does not fix it, new MB time - unless anybody has any other ideas.

[Taijitu]

oh dear - you appear to be able to get to POST(power on self test) are you getting to the BIOS, do you see the hit del/esc to enter bios config message?

i guess you can't - if you cant and all the connectors / cards are correctly seated and the CMOS battery is not discharged I guess the MB has died. If your MB is 7 years old try replacing the battery first if that does not fix it, new MB time - unless anybody has any other ideas.

Hi again dsys,

Afraid not..........I don't see the hit del/esc prompt. I'll try replacing the battery first before I start crying over my keyboard!!!! Thanks again and I'll let you know whether I get my IP Address back....wherever it's gone to!!!!

There's a thought.........are they connected? That is, if my main board was showing signs of going south, would loss of my IP address be a symptom?

Edit: afterthought added

Edited February 25, 2008 by Taijitu

[endure]

A PCI Simple Adapter is not a network card, it's a dial-up modem - usually built in to the motherboard.

[dsys]

A PCI Simple Adapter is not a network card, it's a dial-up modem - usually built in to the motherboard.

sorry endure missing your point here.

Edited February 25, 2008 by dsys

[endure]

A PCI Simple Adapter is not a network card, it's a dial-up modem - usually built in to the motherboard.

sorry endure missing your point here.

The OP told us that he saw a yellow exclamation mark by the PCI Simple Adapter so he changed his NIC. I'm pointing out that a Simple Adapter is not a NIC. Just pointing out that it might be a bit of a red herring.

[Gumballl]

Remove the new NIC and then reboot. See if the system is able to boot the OS.

I would then attempt to restore your old NIC, and troubleshoot why the OS thinks that the device driver is not present. You stated that after installing a device driver that the (old) NIC still wasn't recognized by the OS; this is probably because you installed the wrong device driver. Try again with a different driver (use your daughter's computer to search the web for the proper driver).

[dsys]

A PCI Simple Adapter is not a network card, it's a dial-up modem - usually built in to the motherboard.

sorry endure missing your point here.

The OP told us that he saw a yellow exclamation mark by the PCI Simple Adapter so he changed his NIC. I'm pointing out that a Simple Adapter is not a NIC. Just pointing out that it might be a bit of a red herring.

good spot there - missed that.

[ps edited the name confusion - your just too quick for me:) ]

[Taijitu]

I guess you can't - if you can't and all the connectors / cards are correctly seated and the CMOS battery is not discharged I guess the MB has died. If your MB is 7 years old try replacing the battery first if that does not fix it, new MB time - unless anybody has any other ideas.

Yes.........my MB had passed away. RIP

New MB fitted today and my PC is reborn.

Thanks to everyone for your help.