AirPort Express in Hotel - Double NAT

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Level 1

9 points

AirPort Express in Hotel - Double NAT

Hello,

For a few years I used a Linksys cheopo wireless router when traveling. It worked well by plugging it in to the hotels' wired internet connection, sharing the connection to my devices. The only drawback was my iPhone would loose it's juice in an hour. Don't know why, but assumed it was being constantly queried by the Linksys router, draining it abnormally quick.

So recently I bought an APE, but when using it in the hotel, I get a yellow flashing light and the error it is sensing a "Double NAT". I get access to internet but I don't like errors and yellow flashing lights. So I tried to solve it with the suggested steps;

Bridge mode - does not work for me, the hotels always stops the internet access when sensing a new MAC/IP and I need all my devices to access (iPhone, iPad2, Macbook Air 11).

Is there any way to get rid of the reported error message "Double NAT" or am I bound to ignore it?

/me in Hilton right now!

iMac, Mac OS X (10.5.5)

Posted on Apr 17, 2011 11:39 PM

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Answer 1

Best reply

RyanJC

Level 1

15 points

Apr 18, 2011 12:00 AM in response to theSandyBear

I'm not sure how much you know about networks, but a "NAT" stands for Network Address Translation, simply put, it's just a fancy way of routers to allow numerous devices to share the same public IP. This Double NAT error is pretty common, it just means that there are two separate network "hubs" (routers, modems etc.) on the network trying to provide NAT. If you're getting proper internet access then I wouldn't bother trying to correct it because it's too difficult to work out what may or may not work with the hotels network because we don't know their set up.

But if you really want to mess around to see if you can get it to flash green again, you can try changing the Connection Sharing on the Internet tab to the "Distribute a range of IP addresses" option.

Once you've set it to "Distribute a range of IP addresses", click the "TCP/IP" tab and set the 'Configure IPv4' to "Using DHCP".

Then click Update and check if you are then able to connect with internet access on your devices. If you can't, you can check back here and tell us or just go back to the settings that worked.

Really, though, if you're getting internet access, then I wouldn't worry about it. 🙂

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