HT4145 Airport Extreme no valid IP address, no DNS addresses

I have Uverse. I've disabled the wireless feature of the gateway and wired into my airport. I've created a network, and I have all my deviced connected to it. Everything was working fine. Then one day it started losing connectivity everyday. The light was green, but no internet access for the network. A quick restart would fix the problem. Now the light stays amber, and I get two problems: no valid IP, no DNS addresses. Please help.

Re: Airport Extreme IP Address Issue
After hours of trying everything else, this worked!!!
From: Comcast Networking/Router/Wifi Gateway:
Re: Airport Extreme IP Address Issue
11-20-2012 07:11 PM
MyComputerGuyJo:
I just wanted to add what Apple Support walked me through. Worked perfectly. Similar to some of the posts here. This assumes you have finished the setup of the Airport using DHCP to obtain the IP automatically from Comcast and it says the IP is invalid.
Power off\on Sequence
1, Power off Comcast Modem. Remove Battery back up, if it has one. Disconnect the coax cable.
2. Power off Airport Extreme
3. Let both sit for 3 minutes.
4. Reconnect coax cable to Comcast modem and replace battery and power up.
5. Wait a minute or two to make sure the Comcast modem is completely up and then Power on the Airport Extreme.
(When AP asks for DNS, Type in both addresses below)
Re: Airport Extreme IP Address Issue
11-01-2012 03:07 PM
Freyfisher: I had the same problem whenn I switched to the Airport Extreme yesterday. Here is what I did:
1: uplugged modem for 30 sec. and detached all ethernet cables. Plugged back in and reattached airport extreme cable after all lights were solid on the modem. Then, I went into Airport Utility and selected, "Base Station"> "restore default settings". Then" Base Station"> Restart. Then go through setup assistant again. If no luck, try setting IPv4 to 10.0.1.2, subnet to 255.255.255.0, router to 10.0.1.1. IPv6 set to OFF if having trouble. DNS adresses: 75.75.75.75, 75.75.76.76, search domain hsd1.ST.comcast.net where "ST" is your two-letter State abbrev. Hope this helps someone....

Similar Messages

Airport extreme loses valid IP address 4 - 5 times a day.

I have a D-link 300T modem connected to the WAN port of my AEBS. I get frequent disconnections even though the ethernet is still connected to the internet.
In Airport Utility, I notice the IP address gets lost and becomes a self-assigned 169.xx.xx.xx number rather than the valid 91.xx.xx.xx number. This is when I cannot connect. Prior to this happening, my internet browsing is as slow as a snail and I know when I am about to be disconnected.
I've reset ny AEBS, cleared the Aiport preferences,used manual DHCP configuration, done combo updates, deleted the airport and ethernet entries in system preferences, changed radio channels, switched off IPV6 etc. Don't know what else to do. Any ideas would be appreciated.

Re: Airport Extreme IP Address Issue
After hours of trying everything else, this worked!!!
From: Comcast Networking/Router/Wifi Gateway:
Re: Airport Extreme IP Address Issue
11-20-2012 07:11 PM
MyComputerGuyJo:
I just wanted to add what Apple Support walked me through. Worked perfectly. Similar to some of the posts here. This assumes you have finished the setup of the Airport using DHCP to obtain the IP automatically from Comcast and it says the IP is invalid.
Power off\on Sequence
1, Power off Comcast Modem. Remove Battery back up, if it has one. Disconnect the coax cable.
2. Power off Airport Extreme
3. Let both sit for 3 minutes.
4. Reconnect coax cable to Comcast modem and replace battery and power up.
5. Wait a minute or two to make sure the Comcast modem is completely up and then Power on the Airport Extreme.
(When AP asks for DNS, Type in both addresses below)
Re: Airport Extreme IP Address Issue
11-01-2012 03:07 PM
Freyfisher: I had the same problem whenn I switched to the Airport Extreme yesterday. Here is what I did:
1: uplugged modem for 30 sec. and detached all ethernet cables. Plugged back in and reattached airport extreme cable after all lights were solid on the modem. Then, I went into Airport Utility and selected, "Base Station"> "restore default settings". Then" Base Station"> Restart. Then go through setup assistant again. If no luck, try setting IPv4 to 10.0.1.2, subnet to 255.255.255.0, router to 10.0.1.1. IPv6 set to OFF if having trouble. DNS adresses: 75.75.75.75, 75.75.76.76, search domain hsd1.ST.comcast.net where "ST" is your two-letter State abbrev. Hope this helps someone....

I have just bought a Humax PVR and Humax W-Lan dongle to connect to my Airport Extreme. I have put the mac address into the AE. The installation screen is picking up my network name no problem but it won't connect to the internet. Can anyone help please?

I have just bought a Humax 7500T PVR and a Humax W-Lan dongle to connect to my Airport Extreme.
I have put the mac address into the AE. The installation screen on my TV is picking up the network name but once appied it won't connect to the internet.
I've a few other things connected to the AE such as computers, ipad, itouch, etc, and have never had a problem connecting these once I've entered the mac address into the AE. Can anyone help me with this please?

have you made sure that the network setting in the system preferences is set up to use dhcp? if not i would try changing it so that it shows that it is getting its address by dhcp

Setting up my new Airport Extreme and it cannot find the IP address? The modem works fine when I bypass the Airport.

Setting up my new Airport Extremem and it cannot find the IP address.

Re: Airport Extreme IP Address Issue
After hours of trying everything else, this worked!!!
From: Comcast Networking/Router/Wifi Gateway:
Re: Airport Extreme IP Address Issue
11-20-2012 07:11 PM
MyComputerGuyJo:
I just wanted to add what Apple Support walked me through. Worked perfectly. Similar to some of the posts here. This assumes you have finished the setup of the Airport using DHCP to obtain the IP automatically from Comcast and it says the IP is invalid.
Power off\on Sequence
1, Power off Comcast Modem. Remove Battery back up, if it has one. Disconnect the coax cable.
2. Power off Airport Extreme
3. Let both sit for 3 minutes.
4. Reconnect coax cable to Comcast modem and replace battery and power up.
5. Wait a minute or two to make sure the Comcast modem is completely up and then Power on the Airport Extreme.
(When AP asks for DNS, Type in both addresses below)
Re: Airport Extreme IP Address Issue
11-01-2012 03:07 PM
Freyfisher: I had the same problem whenn I switched to the Airport Extreme yesterday. Here is what I did:
1: uplugged modem for 30 sec. and detached all ethernet cables. Plugged back in and reattached airport extreme cable after all lights were solid on the modem. Then, I went into Airport Utility and selected, "Base Station"> "restore default settings". Then" Base Station"> Restart. Then go through setup assistant again. If no luck, try setting IPv4 to 10.0.1.2, subnet to 255.255.255.0, router to 10.0.1.1. IPv6 set to OFF if having trouble. DNS adresses: 75.75.75.75, 75.75.76.76, search domain hsd1.ST.comcast.net where "ST" is your two-letter State abbrev. Hope this helps someone....

Airport Extreme wired network can't assign IP address, but wireless works

*Problem details:*
We have three computers intermittently on, wired into the ethernet LAN managed by the Airport Extreme.
We have a few more computers that connect to the wireless network managed by the same Airport Extreme.
As far as I know, no fancy settings hijinks have been attempted. I manage the router, and I only plugged the Airport into the cable modem and connected all the wires to the computers. The WiFi setup went a similar way -- I just turned it on and it sorted itself out. This was eight months ago, mind you -- everything has been going quite well up until this weekend.
But! I got home from a trip this weekend to discover that all the machines that connected over the wired network could no longer get a connection to the internet. Any machine connected over the wireless network, however, was working just fine. Indeed, my macbook pros couldn't even see the Airport Extreme when I turned off their WiFi, connected them over Ethernet and opened the Airport Extreme configuration app!
The wired machines complain that they have a self-assigned IP address. Sometimes, after resetting everything, they look like everything's fine for a moment. Like I said, ordinarily my macbook pro does not even recognize the router over the wired network. However, after reverting to factory defaults and restarting the Airport, the laptop did see it (until a few minutes went by and it realized something was wrong).
I figured that renewing my DHCP lease would fix this problem, but it did not. Nor did turning off Passive FTP Mode (PASV) under Proxies in the Network configuration pane.
I have tried resetting the router to factory defaults, power cycling the modem and router in various configurations, etc. but nothing has worked. In addition, I have verified that connecting any machine to the ethernet directly from the modem will work, so the problem is definitely being introduced by the Airport Extreme.
So I guess my question is: what do I have to poke to return everything to normal? I'd like working wired and wireless networks again.
*Some last few details:*
The Airport is running 7.5.2, but downgrading to 7.4.2 produced no tangible difference.
I have an Ubee D3.0 modem. All lights are green and blinky except the DS light, which is solid amber (and it is green when the modem is wired directly to one of my computers -- it's only amber when connected to the Airport).
Some of the machines that can't connect to the wired network are PCs, so it's not just an OSX thing.
My roommate's XBOX 360 can connect to the internet over the wired port. It doesn't have WiFi, so I'm pretty sure there's no way it could be fooling me.
Thanks in advance for any advice you can muster.
EDIT FOR APOLOGIES:
I didn't realize I was posting this in the "Airport for Windows" section. While a Windows computer's connection is a concern, I would much rather get my Macs online and deal with that first. I can't figure out how to move the message myself.

*An update:*
Several days later, this issue seems to have fixed itself. I suspect there may have been Funny Business on my ISP's end (but then again, it's an ISP).

My iMac can not see my mini Mac via Airport extreme using host name, only via IP address. What am I doing wrong ?

I have an iMac and a mini Mac attached to the same Airport extreme. It would appear that Bonjour works because I can see the hostname of the mini Mac server in Finder on the iMac.
But if I type in the host name (myminimac.private) in the Safari browser at the iMac it can not find the mini mac. However if I type in the IP address of the mini mac server it can see the see it.
It used to work but I must have done something to mess it up.
Anybody any suggestions ?

You have the wrong card. You need the original AirPort card for your G4.
...how the **** do i get the Superdrive to open up so i can put in a CD/DVD?
If the keyboard has a media eject key, press that. If not, hold down F12.

Airport Extreme Base Station and DSL modem, IP address Conflict issues

I recently set up DSL service in my apartment. I have ATT yahoo DSL modem, and an Airport extreme base station plugged into it. The network works fine with my Vista PC connected to it, but when I try to connect my macbook to the network I get errors telling me the IP address the macbook wants to use is already in use, and my PC gives me an IP address conflict error.
The internet is fine, and the modem is configured automatically, so I think it must be a problem with the way the network is set up or the network settings on my macbook...
any ideas?

All,
I recently posted what I believe to be a similar/identical issue. See my post here: http://discussions.apple.com/thread.jspa?threadID=1378849
I have not changed my AEBS to "Off (Bridge Mode)" yet, because everything currently 'works' but I continue to get the occasional "Double NAT" warning suggesting I switch the AEBS to bridge mode. When this happens, I lose connection to the internet and need to unplugged both the AEBS and my modem to re-establish a connection to the internet and the external HD I have connected to the AEBS.
My question for Jmiller1138, do you continue to get the "Double NAT" warning even when you changed your AEBS to "Off (Bridge Mode)"? I am hesitant to change my AEBS to bridge mode since I'm assuming I'll need to totally reconfigure my entire network (meaning both the AirPort Extremes, my wireless HP printer, and my firewalls on my PCs).
The ignoring of the warning (i.e. closing the AirPort Utility without updating the AEBS) is what triggers the need to reset my AEBS and modem. Not fun.
I guess I'll just need to bite the bullet and set the AEBS to bridge mode . . . yes?

Uverse - Airport Extreme and MacBook Pro assigned same IP address

Ok, so I have a Uverse RG -> Airport Extreme -> bunch of computers. For some reason, everytime my MacBook Pro sleeps and then I wake it up, it says it can't connect to the internet because there is another device with the same IP address. None of my other Macs (iMac, Powerbook, iPad, iPhones) ever exhibit this behavior. I'm not sure what's going on here. It's almost like the AE takes on the IP address of the MacBook Pro every time it sleeps (or maybe its the other way around). If I go to advanced settings on my MBP and try and renew the DHCP lease, it won't renew and continues to give me the same error message. If I log on to the AE and renew the DHCP lease, it comes back just perfect. This has to be an issue with my RG since it's assigning the IP addresses right? I tried manually setting the IP address of my AE. That seemed to fix it for awhile, but then the MBP again started reporting the same IP address as another device on the network. I didn't discover which device it was, but I did determine it was not the AE since it was configured with a manual IP address. This is getting pretty frustrating as I have to log on to the AE and reset the DHCP lease every time I leave and come back to my MBP. Anyone have any ideas what could be causing this?

I had the same problem with an Airport-enabled iMac.
Here's what I did that fixed the problem:
Log into the Uverse Admin Tool through your browser.
Click on the Settings tab.
Click on the LAN link in the grey bar
Click the circle in front of "Configure Manually"
Set the "Router Address" to 192.168.1.254
Set "Subnet Mask" to 255.255.255.0
Set "First DHCP Address" to 192.168.1.100
Set "Last DHCP Address" to 192.168.1.199
Click the "Save" button. (You'll probably have to enter your password.)
Now open the Airport Utility.
Choose your Airport Express on the left and click the "Manual Setup" button.
Click the "Internet" icon in the top bar.
Click on "TCP/IP"
Select "Manually"
Set "IP Address" to 192.168.1.42
Set "Subnet Mask" to 255.255.255.0
Set "Router Address" to "192.168.1.254"
Set "DNS Server" to "192.168.1.254"
Click the "Update" button.
This sets your Uverse router, which is handing out the IPs, to only give IPs out that number between 100 and 199. It reserves the rest for you to enter manually. So your laptop, your iPhone, etc, will get the DHCP addresses between 100 and 199 but your Airport Express will *always* have 42.
You may have to reboot everything to make sure each device gets the new IPs.
Also, there is no significance to the 42 number. It can be anything between 1 and 99.

HT4145 Airport Extreme wireless extension VS. TP-Link PowerLine Network extension

I can install either an additional Airport Extreme to extend my network or a TP-Link PowerLine extension. I currently have a DLink network extender with moderate success. Does anyone have experience with the power line extension technology? Does it beat the connectivity of two wireless devices? With the current DLink method it does allow 2.4 and 5g but we end up with 3 SSIDs and thats confusing to the family. Or maybe I should leave the whole mess alone? Any advice is appreciated. Thanks, Mark

You are always better sticking to one brand for wireless repeater.. since apple cannot extend dlink wireless nor the dlink the apple wireless, you are far better keeping wireless just apple or dlink.
Powerline adapters are a good method to avoid the issues with wireless repeater.. namely extremely slow wireless.. since repeating wireless adds huge amounts of latency into the wireless connection.
Problem with powerline (EOP) is they are dependent on the house wiring and it varies from house to house. Just like wireless it is not able to give guaranteed throughput (only ethernet can do that). It some cases eg wiring on different circuits that passes through a set of breakers.. will simply not work at all or so poorly as to not fix the problem. But if you have the two points on a ring main where there is a direct wired connection it can work extremely well. It will end up far more robust as it is not subject to the same level of voodoo and gremlins as wireless. ie if it works well the day you install it.. it tends to keep working the same thereafter.
So there is just one way to find out.. buy a pair and try them. You must use a power point.. no powerboard as the current breaker on the power board kills the signal. Some models come with piggy back connectors.
At the other end you can setup another wireless router in bridge and create a roaming network using the same SSID as the main wireless.. this then stops the confusion. Albeit roaming does not always work as well as the name suggests. Some devices swap "towers" with ease .. just like your mobile phone.. whereas others attach themselves to the AP they first connect to and refuse to disconnect. (without a swift kick at least).
Your Dlink could be made more home friendly by using roaming as well.. to prevent having multiple SSID. But the quality of repeated wireless is still poorer than single point AP with wired connection.

Airport Extreme with ATT Router for Open DNS use

I'd like my whole home network to have a filter on it so all computers and hand devices are protected. I get my internet with an ATT router which I can not change the DNS servers. ATT says they can not be changed. But I have an airport extreme directly connected to the ATT router. The extreme supplies wi-fi to the house. I can not change the DNS settings in the extreme. They are grayed out. I'm assuming it has something to do with the connection to the ATT router. Does anyone know how I can put a DNS address in the extreme?
Some of the settings on the extreme are:
Internet Tab: connect using DHCP, DNS Servers "grayed out", Domain Name "grayed out"
Network Tab: Router Mode (off (bridge mode))
thanks!

Does anyone know how I can put a DNS address in the extreme?
Not sure what you mean that you cannot enter the DNS numbers on your AirPort Extreme configuration page.
Open up AirPort Utility and select the Internet tab
Look at the first DNS entry there. There should be a cursor at the beginning of the DNS Server Box. If not, click to set the insertion point at the beginning of the box.
Simply start typing in the DNS server number that you want to use.....208.67.222.222...... and it will overwrite the grayed out values there.
Do the same for the second DNS box....208.67.220.220.
Click Update at the lower right and you are all set.

Airport Extreme off a Router which provides DNS - Guest Networks

I am sure that I am not alone here.
I have a BTBroadband wireless ADSLModem/Router which provides DNS for the network.
Off tyhe router is a Netgear switch which has connected to it an Airport Extreme. Also off this switch I have many other peripherals - such as Time Capsule, iMac etc.
So the arrangement is simple in logical terms:
BT Modem------->Wireless Router (which allocates DNS)---------->Switch----------->Airport Extreme etc.
IP Settings as follows
192.168.0.1 for Wireless Router - which allocates DNS in range 192.168.0.2 to 0.150.
I have allocated a fixed IP on the Airport Extreme of 192.168.0.151
The devices thart run off this are all having DNS allocated by the router - not the Airport Extreme.
So - how do I set up (or can I set up) the Guest Wireless Network?
Let's assume Router Wireless Network is call MainWireless with a Password MainWord, The Airport Extreme is acting in Bridge Mode and has the exact same 'Create a wireless network' called MainWIreless and Password MainWord (as per best practices in using these to provide the best 'network hopping' capabilities for devices (I actually have 2 other wireless devices from TimeCapsules that operate the wireless in the same way).
All of this works fine.
However when I set up the Guest Network on the Airport Extreme - simply by enabling it - I provide a new Guest Network name of GuestWireless with a password GuetsPassword. In theory it should all work fine, however the devices connecting to the Guest Network cannot get to the internet (effectively I don't think that the 'iPhone for example' is being allocated a correct IP Address - in fact I know that it isn't as its a 169 range and a different subnet).
So - the only way I can think of doing this is to go into the Network Settings on the Airport Extreme, Change Bridge Mode Wireless to DHCP and NAT and then go into Network Options. Here I am a bit lost and need help.
To summarise - Main Router Address 192.168.0.1 allocates range 192.168.0.2 to 150, Airport Extreme Address (static) address 192.168.0.151.
Airport Extreme DHCP and NAT Network Options has:
IPv4 DHCP Range - I have set to 192.168.0.152 to 255
Guest IPv4 DHCP Range 10.0.0 152 to 255
NAT Port Mapping Protocol is switched Off
- This won't even save.
Should be simple I would have thought. Think again...
Please help - mwhat should I / can I do to enable a guest wireless network?

Thanks for all that - I suspected as much (and I did mean DHCP not DNS).
So - if I disable DHCP on the HomeHub3 IP 192.168.0.1, and set the Airport Extreme IP Address at 192.168.0.2, what do I do with DHCP and NAT settings to have a Main and Guest Wireless Network?
I can easily change the order of things if necessary to be :
BT Modem (192.168.0.1 with DHCP disabled)--->Airport Extreme (192.168.0.2 (set to get DNS from 192.168.0.1) )--->Switch---->Various wired and wireless devices.

AirPort Extreme with PPPoE Static WAN IP Address

I am going to be installing an AirPort Extreme in a business that has PPPoE DSL and they have a static WAN IP address and I have a few questions.
1) Going through the AirPort Utility when I change the Connect Using (under Internet tab) to PPPoE I am not given the option to fill in my static IP supplied by ATT. Am I missing something here or is it impossible to have a static public IP and PPPoE on an AirPort Extreme?
2) If the above is possible can I have my modem do PPPoE but leave DHCP and NAT to the AirPort Extreme? From what I have seen DSL modems / routers allow you to do bridge mode (PPPOE, DHCP, NAT is all done in seperate router) or you can have DSL modem do PPPoE but then DSL modem also has to do DHCP and NAT. Again am I missing someting here?

Sorry, but if the Netgear modem is configured in pure bridge mode....which would mean that the AirPort Extreme must provide the PPPoE credentials.....you are still stuck since the AirPort will not support a static IP for a PPPoE connection.
Otherwise, you will likely need to configure the modem to provide DHCP and NAT....which would mean that AirPort Extreme would need to be configured in Bridge Mode to operate correctly.
If you wanted to risk a Double NAT situation on the network, you could set up the AirPort Extreme to Connect Using a static IP address and act as a router also providing DHCP and NAT services. I am not recommending that you do this, only mentioning that you can try if you want.
Devices on the "main" network will of course not be able to "see" devices on the AirPort Extreme network.
This may....or may not... even work. No way to know unless you try.

Setting base IP address of Airport Extreme?!

I've recently replaced my Linksys hub with an Airport Extreme and everything is going well except for a problem I'm having designating a non-default IP address. I use a work PC wirelessly connected to my Airport Extreme and once connected VPN into my company's network. I use the Cisco VPN client which when configured allows me to also see my local network for things like network printing, however, the printer HAS TO BE LOCATED AT 192.168.249.10. In it's default config, the Airport Extreme is set to a base IP address of 192.168.249.1 and while I found that I can change it using the Airport Utility, doing so kills the connection with my cable modem so my local clients get IP addresses from the router, but the router has no connection to my ISP. I'm guessing this is due to having to disable DHCP (presumably on the back cable connection) if you want to set your own, user-defined IP address.
Anyone have any experience with anything like this? I've checked lots of websites and blogs, but have never found an answer and I have to say emailing docs from my PC to my Mac in order to print them is getting really old!
Any thoughts or suggestions is appreciated.
BTW - the company I work for has a pilot program underway that may ultimately have all our sales groups (~1K) switching over to Macs!

Ok, there are two different settings that involve DHCP, one being the public IP address that is assigned to the AirPort and the other being the IP addresses that are assigned to the computers on the private network.
Before doing the following, I would hard reset the AirPort Extreme by holding the reset button on the back for 5-10 seconds, just so we can get a default onfiguration.
If you run AirPort Utility, go to Manual Setup, and click on Internet your Connection Sharing at the bottom should be listed as Share a Public IP Address. This enables your AirPort to be the gateway and to receive a public IP address from your cable provider. This should really already be enabled since you did a hard reset.
Now test to make sure you have an internet connection. If not, then you need to reset your cable modem. If after resetting your cable modem you still can't get internet connection then you need to call your cable provider and have then do whatever they need to do to get you a new IP address.
Now that you have a working internet connection you need to setup your private network. Run AirPort Utility, click on Manual Setup, and go to the Internet tab again. Write down the DNS servers you see listed. For Configure IPv4, you need to change the setting from Using DHCP to Manually. Enter the IP address as 192.168.249.10, the subnet mask as 255.255.255.0, the router address as 192.168.249.10, and then use the DNS Servers you just wrote down.
Now click on the DHCP tab next to the Internet Connection tab and select 192.168.249.100 as your beginning DHCP address. Ending address could be something like 192.168.249.200. Update your AirPort and then see if things are working correctly.

Airport Extreme No IP Address

Airport Extreme No IP Address & Self Assigned IP Address Issue, RESOLVED:
Re: Airport Extreme IP Address Issue
After hours of trying everything else, this worked!!!
From: Comcast Networking/Router/Wifi Gateway:
Re: Airport Extreme IP Address Issue
11-20-2012 07:11 PM
MyComputerGuyJo:
I just wanted to add what Apple Support walked me through. Worked perfectly. Similar to some of the posts here. This assumes you have finished the setup of the Airport using DHCP to obtain the IP automatically from Comcast and it says the IP is invalid.
Power off\on Sequence
1, Power off Comcast Modem. Remove Battery back up, if it has one. Disconnect the coax cable.
2. Power off Airport Extreme
3. Let both sit for 3 minutes.
4. Reconnect coax cable to Comcast modem and replace battery and power up.
5. Wait a minute or two to make sure the Comcast modem is completely up and then Power on the Airport Extreme.
(When AP asks for DNS, Type in both addresses below)
Re: Airport Extreme IP Address Issue
11-01-2012 03:07 PM
Freyfisher: I had the same problem whenn I switched to the Airport Extreme yesterday. Here is what I did:
1: uplugged modem for 30 sec. and detached all ethernet cables. Plugged back in and reattached airport extreme cable after all lights were solid on the modem. Then, I went into Airport Utility and selected, "Base Station"> "restore default settings". Then" Base Station"> Restart. Then go through setup assistant again. If no luck, try setting IPv4 to 10.0.1.2, subnet to 255.255.255.0, router to 10.0.1.1. IPv6 set to OFF if having trouble. DNS adresses: 75.75.75.75, 75.75.76.76, search domain hsd1.ST.comcast.net where "ST" is your two-letter State abbrev. Hope this helps someone....

I have also looked through other threads about this same problem, but none of the solutions (e.g. posts by Tesserax, followed to the letter) so far have worked.
Here are other things I have tried:
1. Called Cox to have them reset my modem, internet works through Ethernet directly from the modem
2. Downgraded AEBS firmware to 7.6.1 (oddly enough, now I cannot for the life of me update the firmware back to 7.6.4, always says cannot connect to update server)
I ran through the various solutions from this thread: "No DNS servers" and "Internet connection" problems with Comcast?
Still getting that pesky blinking amber light.

Airport Extreme and Static IP

My ISP requires a static IP address. When I connect my MacBook pro to ethernet and set manual properties it always sticks and works. However when I set up my airport extreme manually it always changes the ip address to one that is non functional and will not let me connect to internet. How do I get the IP address that i set to remain saved after every restart.

The whole point of a home router is to let you share one real-world IP address amongst more than one computer in the house. In order to do that, the home router must give out new IP addresses that's in the private address pool (which are not valid on the outside world), and then the router will direct outside traffic to the correct home computer on the inside.
To use a static IP address assigned to you by the ISP. You open the Airport Utility, select the AEBS on the list and click manual setup
Go to the Internet pane and setup as follows:
Connecting Using: Ethernet
IPv4: Manually
IP Addr: Given by ISP
Subnet Mask: Given by ISP
Router Addr: Given by ISP
DNS Servers: Given by ISP
Sharing: Share a public IP address

HT4145 Airport Extreme no valid IP address, no DNS addresses

Similar Messages

Maybe you are looking for