Trying to connect airport extreme to comcast provided ubee modem. Light on airport green, but no internet access.

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Level 1

8 points

Trying to connect airport extreme to comcast provided ubee modem. Light on airport green, but no internet access.

Attempting to connect ubee d3.0 comcast modem to airport extreme base station.

Light on airport will go green, but I cannot connect to the internet.

I'm sure it has something to do with DHCP/NAT - as the airport extreme is getting an IP address, but then assiging a 10.x.x.x IP to my computer

but attempts at putting it in bridge mode just causes the light to go yellow and give warning of "No DNS Server" and "No internet connection"

I am able to connect to the internet when I connected directly to the modem.

I'm running OS 10.8.5

previously had DSL modem and connected after a few easy tweaks of the NAT settings before. am unsure what the issue is on this on... have used up my rather limited tech knowledge.

any thoughts?

Thank you!

MacBook Pro (13-inch Mid 2012), OS X Mountain Lion (10.8.5), AE is 802.11n; white square model

Posted on Dec 23, 2013 12:19 AM

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Answer 1

Tesserax

Level 10

158,280 points

Dec 23, 2013 9:35 AM in response to dward13

Attempting to connect ubee d3.0 comcast modem to airport extreme base station.

Light on airport will go green, but I cannot connect to the internet.

Ubee provides both cable modems and gateway devices. What is the model number of yours?

I'm sure it has something to do with DHCP/NAT - as the airport extreme is getting an IP address, but then assiging a 10.x.x.x IP to my computer

By default, the AirPort Extreme would performing as a router with both NAT & DHCP enabled. Also, it would act as a DHCP server for the local network and provide out Private IP addresses in the range of 10.0.1.2 - 10.1.1.200. The WAN-side IP address of the Extreme should be a Public one and provided to you by your ISP via the Ubee modem. Did you perform a "factory default" reset on the Extreme before attempting to connect it to the modem?

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Answer 2

dward13 Author

Level 1

8 points

Dec 24, 2013 9:47 PM in response to Tesserax

Thanks for the reply

Ubee Model is U10C035

and yes, private IP is in that range. Am away from home for the holiday, but from memory, yes, the WAN-side IP was public. And yes, did perform a facotry default reset before attempting to connect.

Had actually been having more trouble with the connection before (blinking yellow light on the airport), and it was only after the factory defaut reset that I was able to get the green light.

Also a note I forgot to mention - using the "Assist me" button under "Network" in the system preferences it shows no issues, and says that I am (in theory) able to connect to the internet.

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Answer 3

Tesserax

Level 10

158,280 points

Dec 25, 2013 2:34 PM in response to dward13

Although you have already done the resets, I would still recommend at this point to perform a complete power recycle of your networking hardware. Check out the following AirPort User Tip for details. Please post back your results.

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