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TICKET ARCHIVE -> IP change

ZiggyStarr - Feb 3, 2008 - 4:20 pm

I am working on a friends Mac. The Mac gets an IP address ok from a cable modem via DHCP. I put a Vonage router in front of it and it got an address from that. But I could not get to the internet. I turned off DHCP on the Vonage router and then static mapped the ip on the Mac. This worked for half a day. My friend shut down the Mac for the day. The next morning my friend powered up the Mac and there was no connection to the internet. I now have a couple of network connection profiles. Did it maybe go back to a default connection for picking the IP via DHCP? The cable company had her take the Vonage router out and connect straight to their cable modem and change back to DHCP. This got her back on the internet. I thought it could be the Vonage device so I put a Linksys router in front of it but again no connection to the internet using DHCP. A Windows laptop behind the Vonage device worked right away, ju. I am running a lot at you at once but wanted to cover all the troubleshooting I have done so far.

My big mystery is why it works with DHCP from the cable modem. If it uses DHCP from any other device it gets an IP ok but cannot talk to the internet.

Thank you.

zo219 - Feb 3, 2008 - 4:48 pm

What kind of connection/modem? If it's cable, it needs a recycle--in fact the whole thing should work.

I don't know why the Windows machine would work in the case you described.

The cable does pick up the machine's MAC address to see whether it's okay to give it an IP ... I don't know exactly how it would help, in this case, but here are a couple of new MAC spoofers on MacUpdate,

Not unusual for friend to have to recycle several times in a row with a new set-up.

Did they have no advice how to use Vonage?

A proper cable reset: 1. Turn off computer.
2. Unplug computer.
3. Plug power supply back into modem,
5. Turn computer on.
Must do in this order.

ZiggyStarr - Feb 3, 2008 - 6:50 pm

All power was recycled and it worked fine, even after a restart for half a day. Half day equal to 3:30pm to 10pm. After the cold start it would not pick up the internet.

Vonage works perfectly. Phone can dial out and a Windows pc can connect with no problem. It seems to be the Mac not trusting a DHCP source other than the original. I have even tried disabling the firewall. It reminds me of Windows Vista. It keeps the user so safe it can't connect to anything. ha ha. Sorry. I had to go back to Win XP.

TechSupport - Feb 6, 2008 - 7:00 pm

We apologize for not being able to resolve the issue you asked of us. It is the absolute worst case scenario for us to do this. In our review of why this happens, it generally is related to either the particular issue being addressed or frequently, incomplete or incorrect information provided. We hope by moving your request to the public forums that you will be able to get a solution without leaving you empty handed.

Your ticket has been closed with our support team. Your request has just been posted to Mac OS X System & Mac Software and is available for your viewing at:

http://macosx.com/forums/showthread.php?t=298276

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