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Suddenly our router keeps losing the internet. The Cox representative says that the IPV6 on the router is not compatible with the Cisco modem. I am to disable it? Does that make sense? Just started 3 days ago. Have to reboot AirPort Extreme

Suddenly on Tuesday, our wifi stopped working. Cox can see nothing on their end. So far we have had to reboot 5 times. I finally realized that it is not the modem (Cisco), but our AirPort Extreme. It is all that needs to be rebooted. I talked to a tech that I have come to know, and she said that this week this problem has started occurring with customers that have Airport Extremes. Something about the Airport being IPV6 and this is not compatible. The systems before were IVP until the numbers ran out (?) Anyway, she said Cox could not fix this, that I needed to talk to Apple to see if I could disable the IPV6, at least for now. I think I see how to do this, but does this make sense to anyone? We have a new modem, installed in January, Cisco DPQ3212, good speeds, no problem whatsoever until this week. It is also happening to 2 other friends here (Scottsdale, Cox) with Airport Extremes. Any suggestions?

MacBook Pro (13-inch Mid 2010), Mac OS X (10.7.4)

Posted on Mar 3, 2016 8:05 PM

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26 replies

May 4, 2016 9:31 AM in response to LeonBGood

The other issue was with the Arris / Motorola SB61XX-series of modems. Since your Cisco is not one of them, then this wouldn't be the problem either.


At this point, I'm not sure what the issue is. I am assuming that you have an AirPort base station connected to that Cisco modem. What model is your base station and how long have you had it?

May 4, 2016 1:04 PM in response to LeonBGood

What do you think about trying a new AirPort Express for wifi and use the Time Capsule just for backing up files locally (not connected to the internet)?

That could work, but set up would be a significantly different solution than that for the OP. I would suggest that you start a new post so that you issue will get full attention for a potential solution.

Suddenly our router keeps losing the internet. The Cox representative says that the IPV6 on the router is not compatible with the Cisco modem. I am to disable it? Does that make sense? Just started 3 days ago. Have to reboot AirPort Extreme

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