No network connection
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MrTicker
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« on: March 29, 2010, 06:29:10 PM »

Hi all,

I have a dual boot toshiba laptop (Vista Home Prem and Win 7) and although I have a perfect connection when running Vista I cannot get Win 7 to connect other than with local access only.  I have tried removing the connection, creating it all over again resetting the router etc, all to no avail.

Does any one have any suggestions?  thanks for your replies.

ticker
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BJseal91
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« Reply #1 on: March 30, 2010, 12:17:30 AM »

Hi Ticker do you have the correct Drivers in windows 7 ?
Have you checked Device Manager?
have you tested the the line?
using cmd to ping the network ping google.co.uk
have you checked IP assdress settings
ipconfig and checked for errors on the line netstat -e
do you have the network configuerd correctly?
dose it show connection?
can you ping the router?
is the wireless turned on?
silly things but could be the answer to the problem have a look at some of these and post up any info you can to help us diognose the problem for you hope this helps

Leave feeback when you can

BJseal91
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RobTech Solutions
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« Reply #2 on: March 30, 2010, 01:40:32 PM »

If he is getting a local connection this may be down to a faulty router as this may be the case. see if you can ping the router and ping websites.

all though i can't understand that he has full connection on windows vista but not 7. it also may need a few windows updates if he hasn't done this he would properly be better doing a windows update.

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MrTicker
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« Reply #3 on: April 06, 2010, 12:50:39 PM »

Hi all
Apologies for being late getting back, but I've been kinda tied up a bit.

Anyway, thanks for your input to my query. BJ, all the suggestions that you made had checked out OK but I ran through them again anyway just in case I had missed something first time round.

Did not need any updates and the router is less than a year old and has been working perfectly up to now.

So I removed the connection on the wireless Toshiba/Win 7 and tried again, this time I got an error:
THIS COMPUTER HAS AN IP ADDRESS CONFLICT or similar message, so I removed connection again and rebooted, set things up all over again and this time BINGO! she connected perfectly and so did Vista when I rebooted again to check that connection out also, so all is working fine now.

This Toshiba is the only dual boot machine on my network which consists of another Toshiba laptop/Vista, Toshiba Netbook/XP Pro and a Custom built laptop, all wireless plus a HP Desktop/XP Pro and a Dell Machine/XP Pro, both hardwired.

I had never had this problem before I dualled the Toshiba and I am not absolutely sure of the cause or indeed what I did to find a fix other than the reboot and reset up of the connection.

Anyway thanks again for your input

ticker

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Britec
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« Reply #4 on: April 16, 2010, 09:50:11 AM »

How to fix an IP address conflict

Ever get the following message when turning on your computer or taking it out of sleep mode?



You may also see a different error message for the same problem:



This occurs when two computers on the same LAN network end up with the same IP address. When this occurs, both computers end up not being able to connect to network resources or perform other network operations.

This problem, though rare, can occur because of the following reasons:

    * Two computers are assigned the same static IP addresses
    * One computer is assigned a static IP address that falls into the DHCP range for the local network and the same address is assigned to a computer by the DHCP server
    * A laptop
      is put into sleep mode and then turned on while connected to another network that uses the same IP address
    * If you have multiple network adapters, it is possible for a to have an IP address conflict with itself



How to resolve an IP address conflict

There are a few ways you can go about fixing this problem. I’ll start with the simplest and move on.

1. Renew IP Address – You can release and renew the IP address for your computer using the command prompt.

2. Reconfigure Static IP Address – If your computer is using a static IP address, it is best to try and use a different one in the same subnet. One way to check to make sure the one you are picking is not already being used is to simple ping the IP addresss (ping x.x.x.x).

3. Use DHCP – If you don’t need to use a static IP address, it’s best to simply choose DHCP instead of manually configuring the IP address. The server will know which addresses are free and which are taken.

4. Update firmware – In some rare instances, the actual DHCP server can malfunction and assign more than one computer the same IP. In this case, it is best to try and update the firmware on your router.

Enjoy!
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