Two nat routers - AP Extreme blinking yellow

I have had an internet based home security system installed. They (comcast) require their own router between the cable modem and my AP Extreme. Their router is purely for their use, I get one ethernet port to go to the AP. But their router also has dhcp and nat functionality enabled. So . . .
1) If I put my AP Extreme in Bridge Mode, alll works well. The "other" router is assigning IP addresses (in the 172. range), the AP shows a green light and all is well. Except . . . I cannot use the Guest Network functionality, which I want to keep. It appears that does not work in Bridge Mode.
2) If I let the AP create a network, everything also seems to work fine. Now the AP is assigning IP addresses (in the 10. range). But the AP stays blinking yellow and says it does not like having two routers.
Do I care if the AP stays blinkng yellow with that error message? Why does it care if everything seems to work?

1) If I put my AP Extreme in Bridge Mode, alll works well. The "other" router is assigning IP addresses (in the 172. range), the AP shows a green light and all is well. Except . . . I cannot use the Guest Network functionality, which I want to keep. It appears that does not work in Bridge Mode.
That is correct! The Guest Networking feature is NOT available when the AirPort is configured as a bridge.
2) If I let the AP create a network, everything also seems to work fine. Now the AP is assigning IP addresses (in the 10. range). But the AP stays blinking yellow and says it does not like having two routers.
Do I care if the AP stays blinkng yellow with that error message? Why does it care if everything seems to work?
The flashing amber is letting you know that the AirPort has detected that it is in a double NAT condition. Being in this state is not an issue by itself. You can disable the warning by using the AirPort Utility (v5.x); select the yellow circle next to the base station, and then, choose the option to ignore the warning. This should get the status light to a steady green again.

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Airport extreme blinking yellow. reporting "Unknown problem (6rer)

My airport extreme router has been blinking yellow for a week. All devices using it are still able to conect to the internet, but all report errors with airport. When i go thru diagnostic steps by way of those messages, i get "Unknown problem (6rer)" I have powered down the unit and also the cable modem to which it is attached, with no luck.

When i go thru diagnostic steps by way of those messages, i get "Unknown problem (6rer)"
If you are using the Lion or Mountain Lion operating system on your Mac.....
Open Macintosh HD > Applications > Utilities > AirPort Utility
Click on the amber dot, and another window will appear to explain why the amber light is blinking
What is the message? If everything seems to be normal, the message might indicate that an update is available for the AirPort Extreme.
If you are using the Leopard or Snow Leopard operating system on your Mac.....
Open AirPort Utility using the path above
Click on the AirPort Extreme, then click Manual Setup
Click directly on the word Status (2nd line on the summary page)

Airport Extreme blinking yellow , auto reset ?

I have two Airport Extremes connected via ethernet. One is connected to the Internet and the other is to extent the WIFI in the house for better signal coverage.
Every so often the Airport Exterme that is used to extend the WIFI signal, starts to flash yellow and when I reboot it is fine again. Is there way to "auto reboot" the Airport Extreme.
thanks in advance

When i go thru diagnostic steps by way of those messages, i get "Unknown problem (6rer)"
If you are using the Lion or Mountain Lion operating system on your Mac.....
Open Macintosh HD > Applications > Utilities > AirPort Utility
Click on the amber dot, and another window will appear to explain why the amber light is blinking
What is the message? If everything seems to be normal, the message might indicate that an update is available for the AirPort Extreme.
If you are using the Leopard or Snow Leopard operating system on your Mac.....
Open AirPort Utility using the path above
Click on the AirPort Extreme, then click Manual Setup
Click directly on the word Status (2nd line on the summary page)

Since cahnging FIOS Internet provider, which required a router to go in front of "AirPort" I have a blinking yellow on the AirPort and suggested editing in AirPort utility to cahnge from Double NAT to "Bridge Mode" my knowledge base is not clear as t

How do I clean up my new FIOS connection? I just cahnged ISP Fios and they reqquired a router of thier own in front of my AirPort Extreme. Since then I have blinking yellow light on the AirPort and AirPort utility keeps promting for an edit. Suggests canging from NAT to "Bridge mode". Obviuosly U have some internet or this post would not go anywhere, my knowledge base is not enought to feel comfortable with changing the settings. Correctly editing can be tricky, so how do I make necessary changes?

How do I clean up my new FIOS connection?
The FIOS router needs to be in Bridge Mode to prevent the Double NAT error from occurring when two routers are both fighting with each other for control of the network.
Unfortunately, the likely problem from the FIOS side is that FIOS support will either tell you that their router cannot be configured to operate in Bridge Mode, or if it can, they will not tell you how to do it.
But, it could not hurt to check with FIOS to see if anything might have changed recently in this regard, so your first call would be to FIOS support.
If you cannot change the FIOS router to Bridge Mode, the alternate plan would be to change the AirPort Extreme to Bridge Mode. If you are using the Guest Network feature on the AirPort Extreme at this time, that feature will not work correctly when the AirPort is set up in Bridge Mode.

Airport Extreme missing, blinking yellow

I'm in the middle of setting up my AEBS, when suddenly it dissapeared from the Airport Utility scan. Now I only have a blinking yellow light, and no base station to choose (or configure). I've powered down, and resent via the reset button on the back of the AEBS. Still no base station in Utility. How do I "see"my base station again????

When the AirPort Extreme (AEBS) goes missing, try an Ethernet cable connection from your Mac to one of the LAN <-> ports on the AEBS to establish a direct connection, rather than wireless....which can be problematic
You may need to perform a Factory Default Reset again to get things back to a starting point again.
To do that....
Pull the power plug from the back of the AEBS
Wait a moment or two
Hold in the reset button and continue to hold it in an additional 8-10 seconds while you plug the power back in to the AEBS
Release the reset button and allow 25--30 seconds for the AEBS to restart to a slow, blinking amber light
You can keep the Ethernet cable connected to the AEBS until you have it updated with new settings, then you can remove it if you wish
Post back if you need a few more setup tips

Airport Extreme (802.11n) stays in blinking yellow light mode.

Status indicates WDS Error. Updated to 7.5.2 firmware today, but blinking yellow status light predates this update. Tried rebooting the AE numerous times, leaving it unplugged for 2, 3 5 and 35 minutes, but no change. Should I try a soft or hard reset? What else should I do to get it back on line? Thanks.

We need to do some troubleshooting to find out why the amber light is blinking, and to do that we need to know what operating system you are using on your Mac or PC.
If you have a Mac, and are not sure what operating system it is using, click the Apple icon in the upper left corner of the screen, then click About This Mac. Post back with the OS X Version number that you see there.

My computer cannot see my new airport express (Blinking Yellow)

OK, Ive been sitting here for an hour and this thing keeps blinking yellow..lol
I reset it twice but it will not appear in the airport setup utility.I am trying to extend my network from my Airport extreme in the basement.
Im sitting 2 feet away from it on my macbook pro
what gives?
Message was edited by: Thomas Colontonio

I hope you are sitting 2 feet away from the Airport Extreme with the Airport Express plugged in near it along with your MacBook.
If not, you should do this all in the same room to begin with..
Next, it sounds like you need to reset the new Express.
Unplug it, push a clip into the reset button and while holding the reset button in, plug the Express back in and keep holding the clip in for at least 10 seconds.
Now, wait a minute or two and see if the Express shows back up in the Airport Utility window.
If it does, set it up again the way you want.
Joseph Kriz

Solution for blinking yellow LED despite the fact it works

I've seen a bunch of questions/comments about frustrations about having blinking yellow LEDs even when everything seems to work.
Here's how to fix this:
1) Launch AirPort Utility
2) Select your base station in the list at the left
3) Select "Manual Setup" from the "Base Station" menu.
4) When you get the summary, there will be a little Yellow LED in summary (not talking about the list on the left). Click on it!
5) You will now see a list of the problems causing the base station consternation and you grief because little blinky LEDs drive you folks nuts. Some of the problems listed here should be addressed and some of them are because you deliberately chose to configure your base station this way.
6) Fix any issues listed that sound ominous.
7) For any remaining issues, check the "Do not show this warning again" if you don't want the base station to worry about the issues you don't care about. (For example if you insist on using "public" for your base station password and having an open network, bless you...I love free wireless)
If you see warnings about IP Addresses, bad disks, missing cables, etc. you probably should fix it.

Strangely, when I look at the Utility, all hardware has a Green dot.
But the Extreme is still blinking yellow.
The only problem I am having currently is the connection to the attached HD is dropping occasionally, requiring a reboot.

My airport express has a blinking yellow light and is not working. I have tried resetting it a few times, to no avail. My airport utility on my desktop detects it and will attempt to connect. However, after a few moments it says "An unexp

My airport express has a blinking yellow light and is not working. I have tried resetting it a few times, to no avail.
My airport utility on my desktop detects it and will attempt to connect. However, after a few moments it says "An unexpected error occurred Try again."
I'm running Mavericks on a 24-inch 2007 mac, 2.4 GHz Intel Core 2 Duo, 4 GB 667 MHz DDR2 SDRAM, OS X 10.9.3 (13D65). The Airport Express is model A1264. I connect to it via an Airport Extreme with 7.6.4.
Thanks in advance.

I have the same problem with my airport express – a blinking yellow light and it is not working. I have tried resetting it a few times.
My airport utility detects it and try to connect. However, after a few moments it says "An unexpected error occurred Try again.
Airport Express is model A1143
And I have tried to connect with iPhone - same same.

Have a blinking yellow light on airport express. Reset... Still Blinking. What do I do?

Airport Express has blinking yellow light. Reset. Still blinking yellow. All other apple products, Apple TV, Mac's connecting fine to Airport Extreme.
Had to reset AE a few months ago and have not used this airport extreme since that. Suspect is a simple fix but not doing something right. Anyone help?

A persistent, flashing amber light indicates that any of the several potential conditions may require your attention:
The base station has not yet been configured because it is new, or the reset switch has been set.
You have selected a security configuration that is not recommended.
One of several other conditions, such as a disconnected Ethernet cable or invalid IP address has been detected.
(ref: http://docs.info.apple.com/article.html?artnum=305101)
If you run the AirPort Utility, it will show an amber circle on the summary page next to the area(s) causing the problem. Click on this amber circle and it should provide an explanation.

AE blinking yellow but is working

My AirPort Express is only connected to my Stereo setup in the living room.
After receiving a software update it started blinking yellow and wouldn't work.
I try using the Setup Assistant and get this message:
There was an error communicating with your AirPort card. Please make sure it is installed properly and try the AirPort Setup Assistant again.
AirPort works fine with my AP Extreme base station which I use to download movies so it appeared there was nothing wrong with the card. I did a hard reset of the AP Express and downloaded the latest firmware.I still can't use the setup assistant and the yellow light is still blinking,but the Express now works fine.
Any ideas what's going on? Why the erroneous messages and blinking yellow when the unit appears to be working fine?

All this may seem obvious to techies, but it's a big deal to a senior type person.
After much anguish and hand wringing I have my Express showing along with my Extreme in Airport utility in all their green dotted glory. Somehow the firmware update request for 732 that magically appeared (and that I quickly downloaded) managed to change my AirPort network settings. These are some notes I made for myself for reference in the event of future mishaps.
Make sure AirPort is connected by checking in NETWORK - NETWORK STATUS
If not connected click on AIRPORT in drop down menu
If on AUTOMATIC change to PREFERRED NETWORKS
Select name of desired network from list
Open AirPort Utility - see base station(s)on left (if not, do a factory reset)
Click on Manual setup
When asked which base station do you want to connect to, click on Extreme xxxxxx
When asked for password type in Extreme wireless network password-xxxxxxxx
follow any other instructions and click on UPDATE. It will take quite a while to connect to Express - just WAIT. (maybe 3 to 5 minutes). Express will show green and unit will show green.
The key was changing from AUTOMATIC to PREFERRED NETWORKS, and selecting the correct one from the menu shown. I had not had to make this selection in the past. AUTOMATIC had always worked until the update. Oh yes, and forget using SETUP ASSISTANT. It still is indicating something wrong with the AIRPORT card even though everything now is working fine.

New internet provider (moved from Comcast to Uverse) and I can't get my new network to stay put, and I can't get my Time Capsule to stop blinking yellow

I have moved from Comcast to Uverse, and can't get my TIme Capsule to stop blinking yellow. I know it isn't updating. Additionally, I can't get my computer to recognize the 'new' wireless network. It keeps changing back to the 'old' network.

You have two separate issues here. although both were created with the recent changes on your network.
Find out why the Time Capsule is blinking amber as follows:
Open Macintosh HD > Applications > Utilities > AirPort Utility
Click directly on the the Time Capsule icon
Click directly on the amber dot....and another window will open to explain more about the issue...along with suggested actions that you can take to remedy the issue.
If you want your Mac to connect first to the "new" network....
Open System Preferences (gear icon) on the dock
Open Network
Click on WiFi on the left
Click Advanced at the lower right
Make sure that the name of the network that you want the Mac to connect to first appears at the top of the connection order list. Drag the name to the top if it is not there now.
Click OK
Click Apply
Now your Mac will attemp to connect first to the network that you positioned at the top of the connection order list.

Time Capsule goes back to blinking yellow.

I have now rebooted my Time Capsule several times since setup a couple weeks ago to restore the solid green light. Ironically everything seems to continue working (internet and backup) with the blinking yellow - I think. How do I stop the time capsule from going back to a warning sign? And is there truly something I should be concerned about when it is blinking yellow? I am running two MacBook Pros and my wife and I both take them to other locations out of range and usually just "close the lid" on our laptops without powering off the MacBooks (Yes, occasionally we do deliberately power down and reboot - I've been told that's good to do now and again). Love the fact that as soon as we arrive home, and start using the Macs, the backup process begins automatically. Want to make sure that process is continuing without interruption. That's why we bought Time Capsule. Thanks!

And is there truly something I should be concerned about when it is blinking yellow?
A green light signals that eveything is working normally on the Time Capsule.
A flashing amber light is doing so for a reason. To find out why....
Open Macintosh HD > Applications > Utilities > AirPort Utility
Click Manual Setup
Click directly on the word Status (2nd line on the summary page) and another window will open to explain why the Time Capsule is complaining, along with suggested remedies
If everything appears to be normal on the network, the flashing amber light might be a message that there is an update available for your Time Capsule.

32L4300U blinking yellow light

I purchased my new 32L4300U TV one week ago, and noticed a blinking yellow light after I powered it off two nights ago. It was present again last night.
It blinks three times in succession, and then pauses for about 3 seconds, then blinks 3 times again.
Any help would be appreciated, as this is a brand new tv. Thanks!

If you can't solve your issue and no one in the community can help, contact support to speak with a tech support agent at (800) 631-3811.
- Peter

Blinking yellow light after installing a new modem

I installed a new Arris DOCSIS 3.0 Gateways modem and my Airport Extreme AC keeps blinking yellow .
I have rest the extreme and still the same result. All connections are solid. It would be my opinion the Aiirport is just not finding the Mode,
thanks for any help.
M

I have rest the extreme and still the same result.
If you reset the AirPort Extreme, then you have had to set it up again.
I suggest that you try letting AirPort Utility tell you why the AirPort Extreme is complaining, and then let the utility offer a solution to fix the issue.
If this sounds like something that would be useful, then.....
Open Finder > Applications > Utilities > AirPort Utility
Click directly on the amber dot
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Click on the smaller amber dot next to Status
Another window will open up with information about what AirPort Utility feels might be an issue, along with a suggestion to fix things.
If you are unable to fix the issue using that information, please post back with the exact message that you see.

Two nat routers - AP Extreme blinking yellow

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