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  I am at a loss here! 
 Date Written 
Juan Pena Nov 18, 2008, 08:00am EST Report Abuse
Hello all. I hope you can shed some light here as I am perplexed.

This customer calls me as their computer cannot get Internet. So I go there and indeed, the machine does not get IP from the modem, it shows the cable is connected but 'low connectivity', no IP. Now, I try with a laptop; it works perfectly, same cable, same modem, no problem. OK, so, I bring the computer to my workshop to work on it. Before anything else, I plug it in and voila! no problem getting IP and onto the net. I try several times, always working perfectly.

So what is the problem? since the laptop works at their store, it cannot be the modem nor cable (there is router at the time), but the desktop does not get IP at the store but it does at my store. So, what is the problem? any idea?

Thanks in advance, Juan.

Asus M2N-SLI
Amd Athlon 64 X2 @3200
2 x 2gb DDR 800 dual channel
40 gb ide , 500 gb sata
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Nathan Daniels Nov 18, 2008, 10:24am EST Report Abuse
>> Re: I am at a loss here!
I doubt this is the solution but it worked for me when I had a similar problem.

Many ISPs only allow a certain MAC address to connect and get an IP address from them. My ISP will only allow access to devices with a certain MAC address which happens to be the MAC of my wireless router. I cannot connect my laptop directly to the modem to get internet, I need to connect it to the router. It may be possible that the customer originally set up their internet connection with the laptop and thus only the laptop's MAC can get internet. I missed if there was a router involved or not but if there is, there should be an option to manually set the MAC address to satisfy the ISP. Alternatively, calling the ISP to change the MAC they are looking for works too.

"The more we sweat in peace, the less we bleed in war."
Juan Pena Nov 19, 2008, 02:14am EST Report Abuse
>> Re: I am at a loss here!
Thanks for the help.

With this company, when you change computers, you have to restart both the computer and the modem so that it assigns IP to the other computer. With my isp, I just plug the cat5 in and that's it, no resetting anything.

Again, thanks.

Asus M2N-SLI
Amd Athlon 64 X2 @3200
2 x 2gb DDR 800 dual channel
40 gb ide , 500 gb sata



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