Airport Extreme and Cox Internet IPv6 Problem

Tomesha - You mentioned the "link local" workaround, but I wasn't clear if you still are using that or if you've re-enabled full IPv6 on the Airport. Also - what does "constant drops" mean? Total loss of internet, or just failures of IPv6-specific connections as described elsewhere in this thread? Lastly - what's your CM MAC?

It is in "link local" - still using it, but I spent some time also setting it to iPv6 in "auto" to se if maybe the 7.7.7 firmware update had solved it.

I'm not sure what the extent of the drops are. The modem indicator lights show it is working and connected to the internet, but on the Airport Utility, it shows the modem disconnected, orange light and not ability to connect. Also my Apple TV disconnects (routed through the Airport Extreme) - most times it is resolved by resetting the Airport and sometimes both the modem and Airport.

Can you tell me what a "CM MAC" is and I will tell you - I went to art school 😉

As an aside, it is dropping less this past day - instead of every like 15-20 mins, now a couple of times day....

Thanks.

Ah, I figured it out... Cable Modem MAC!

On the bottom it says: HFC MAC ID: 306023CEB6C6

Two of the log errors -

If it was still happening with the "link-local" setting applied, your issue is probably not related to IPv6 which is what this support thread has revolved around. I pulled up your modem but nothing jumped out as being abnormal. Best thing I can tell you is to call Cox support next time you notice it happening, before you reboot anything. Sorry I can't be more help.

Thanks for even taking the time to help!

I did call Cox when it was happening - they said the modem was fine, had me connect my MacBook directly to the Cable Modem, and it was fine - no drops... when I went back to the Airport & Modem, it kept happening again.

So they felt it was an issue with the Airport... But who knows with Cox.

Thank you again.

Has Cox had a relapse? I was on this thread back in March when the Cox/1pv6/Airport problem was first identified. When I last posted in May, all was working well here in Williamsburg, VA with default Apple settings and Cox DNS. I was receiving 10/10 and 19/20 on the two tests (Three posts on May 25, p. 13 of this thread.). Total connection reliability. 🙂

Since then all has seemed well, except I started noticing some wonkiness again this week. Better now, but when I do the two tests I now receive 9/10 ("appears your ISP has no access to the 1pv6 internet") on one and 17/20 on the other.

Is Cox having a relapse, or have their been new developments since May? (I have reviewed this thread, but may have missed something important.)

I thought this was over, but apparently not. Will appreciate any comments.

You can add me to the list. I'm on Time Warner with a factory-refurbished 6th Gen Airport Extreme. I was experiencing slow Internet and my Weather Underground uploads were dying after only a few minutes. I disabled IPv6 Sharing using the iOS Airport Utility and, after the base station restarted, my connection was speedy again and the weather data uploads are still going strong after more than 17 hours.

TO: askin6305B

Have failed both tests lately, and I have changed nothing. What is going on? From today:

askin6305B are you still around?

I live in Gainesville, FL and have Cox Communications, as well. I'd been having problems with my 2 year old modem/wi-fi router and purchased a new Arris SB6183 and AirPort Extreme earlier this week. I installed the modem and confirmed the new hardware with Cox and have full connectivity through the modem. When I connect the AirPort (running firmware 7.7.7.7) I get nada. The green light on the front is lit, but no connectivity. I made the recommended switch to Link-Local and still nothing. Any suggestions would be most appreciated!

I installed the modem and confirmed the new hardware with Cox and have full connectivity through the modem.

How exactly did you do this? If you had your computer connected to the modem when you notified Cox, then your modem "associated" itself with the computer.

Cable modems "remember" the device to which they are first connected, and they will ignore any other device that subsequently connects to the modem.

So, if you had your computer connected to the modem when you called Cox (or went online) to authorize the modem......the modem won't communicate with the AirPort Extreme at all.

If this is what has happened, then you will need to make the modem "forget" your computer, so that it will associate with the AirPort Extreme. Post back for more details if you need them in this case.

Another possibility here is that while the Arris modems are good products, as are the Apple routers, the modems and AirPorts just don't seem to get along very well together for some users.

Usually, you can make the modem forget by disconnecting it from power for 30-60 seconds.

It has taken a 60+ minute power down of the modem on the 3 Arris modems that I've tried in the past. Even then, the modems would not hold the connection. I finally gave up and went with a Zoom modem. Flawless for many months.

bahamarob wrote:

I live in Gainesville, FL and have Cox Communications, as well. I'd been having problems with my 2 year old modem/wi-fi router and purchased a new Arris SB6183 and AirPort Extreme earlier this week. I installed the modem and confirmed the new hardware with Cox and have full connectivity through the modem. When I connect the AirPort (running firmware 7.7.7.7) I get nada. The green light on the front is lit, but no connectivity. I made the recommended switch to Link-Local and still nothing. Any suggestions would be most appreciated!

Disconnect the modem from power for about half a minute and plug it back in. Then do the same with the Airport Extreme. Then shut down the computer with Airport Utility and restart it. Then, use Airport Utility to set up the Airport Extreme. Hopefully you will find this will make it connect.

I know the restart of the computer with the Airport Utility you used to set up the Airport Extreme may not seem intuitive, but it works. A Cox helpline person advised me to do this when I had a connectivity problem, and I was surprised when it did work

Had the same problem develop overnight as Cox rolled this out in our area. These instructions worked perfectly! All is well now. Thanks for the detailed instructions!