Internet connection Cox Cable & Airport Extreme

I had the last three or four months a problem with Internet cable fall suddenly. All the lights on the modem cable have no problem with the modem. The Airport Extreme base station has a green light, as well. I have to keep resetting the modem cable 3 - 4 times a day. The ISP is Cox Cable.

It affects all the iPhone, phone Android, iPad and other Apple computer, we have. All lose connectivity at the same time. If I connect to the Mac mini directly to the modem cable by the cable network the internet connection gets dropped without using the WiFi network.

1 does anyone know conflicts between modems Motorola and Apple Airport Extreme networks?

2. what else can I check or try to fix it?

Airport Extreme: How would I test for a problem with the unit master of AE? The only thing I can think to do is reconfigure AE units and using one of the older AE devices as master and see if that makes a difference, but it's a headache to do if there is an easier way.

Our WiFi network consists of a base station Airport Extreme 802.11ac with two base stations older AE acting as slaves to the base ac station to expand the network throughout the House. All base stations are running the latest firmware from Apple (7.7.3 & 7.6.4 on two more former slaves). The light remained green for disconnects. We have previously disabled IPv6 in Airport utility on the base station to avoid potential conflicts with the Cox' months before the start of this issue of network.

Cable modem: Motorola MB 7420 - Cox says he could be the modem, so I bought a new modem cable Motorola MB7420 to replace the former Motorola cable modem - always have the same reduced connection problems. The cable modem shows any change in status or lights during connections has dropped, but only reset the cable modem seems to fix the problem. The two modems are not any lights/status change, but there is no internet connection, even if a computer is connected directly to the cable modem once the connection is released. I kept it connected and had it remove the connection to the internet again after resetting the modem (hours between the drops).

I tried to connect a computer directly to the modem cable with a network cable and had the same problem, so I thought that I had deviated from the Airport Extreme base station as the problem. Now Cox claims that something came out last week, discussing the problems with Apple routers and cable modems or their network. I can't find anything, but they are supposed to send me information later.

Coaxial connection: Cox is not finding any disconnection or time in their voting for our modem registers. We had three times to check the lines as he first seemed extremely windy Cox and had a problem before with problems connecting to the pole. Who was waived. They tested the connection between the pole and the cable modem, and we get a signal strong; some problems on the survey for our modem logs (every two hours). There is no water in the connections between the pole and the House. We have checked all the connections of the coaxial cable between the outer box and the cable modem. Cox is to revisit all connections around our House to see if they can find no evidence of a problem upstream or downstream from our part.

Network cables: I replaced network between the cable modem and AE cables as well as AE to a computer next to him - no change.

1 does anyone know conflicts between modems Motorola and Apple Airport Extreme networks?

There are at least two known issues with Cox here on Apple's Support communities:

  1. Cox started the IPv6 role. The current workaround is to configure your AirPort base stations to use IPv6: link-local only.
  2. The series of Arris/Motorola SB61XX modem is incompatible with 802.11ac AirPort base stations (potentially, 802.11n models as well.) This is not bad in themselves, they just don't "play well" together. I have not heard of all reports on the series of MB74XX... so maybe it's not the question on this point.

To test the incompatibility, check the ARP cache. It must contain only around a dozen entries. Considerably more could possibly indicate a problem.

Run the network utility > Netstat tab > select the option "Display routing table information" > click Netstat

Note: For OS X El Capitan, network utility can is located in Macintosh HD > system > library > Basic Services > Applications, OR via the Apple Menu > about this Mac... > system report > Tools menu of System Information > window > network utility

To change the IPv6 configures your airport most convenient base stations you use AirPort Utility, as follows:

From a Mac:

  • Run the AirPort Utility.
  • Select the base and then station, select change.
  • Select the Internet tab and then, select Internet Options...
  • Change the IPv6 configuration to: link-local only
  • Click on save and then click Update.
  • Allow the base station restart.
  • Do this for each of your base stations.

Starting from an iOS device:

  • Tap the AirPort Utility to run it.
  • Select the base station.
  • Press Edit.
  • Tap advanced.
  • Tap on IPv6.
  • Change the IPv6 configuration to: link-local only
  • Type actually.

Tags: Wireless

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