AirPort Time Capsule Is Green but cannot be found

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Level 1

27 points

AirPort Time Capsule Is Green but cannot be found

Good day

I have a 2TB AirPort Time Capsule which has been running fine for years. It appears it doesn't like macOS High Sierra 10.13.2 or its lates firmware update (7.7.9) as even though the AirPort Utility shows its green, I periodically get a message stating it cannot be found. Apple Support advised to wipe the unit and create a new backup. I did this and after working well for a few days I have the same issue.

These are my settings:

Internet --> DHCP

Internet Options --> IPv6 - Automatically; IPv6 Mode - Native

Wireless --> Network Mode - Off (I have it connected by ethernet cable direct to my cable modem/router)

Network --> Router Mode - Off (Bridge Mode)

I would very much appreciate any assistance...

Thank you

Regards
Peter

Mac mini (Late 2012), OS X Yosemite (10.10.1)

Posted on Jan 6, 2018 11:23 AM

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Answer 1

Top-ranking reply

Bob Timmons

Level 10

185,030 points

Jan 7, 2018 8:32 AM in response to peterkthomas

Yes. Do this for both WiFi and Ethernet

System Preferences / Network / WiFi / Advanced / TCP-IP / Link Local Only / OK / Apply

System Preferences / Network / Ethernet / Advanced / TCP-IP / Link Local Only / OK / Apply

Then, Restart your Mac

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Answer 2

Bob Timmons

Level 10

185,030 points

Jan 6, 2018 12:45 PM in response to peterkthomas

Internet Options --> IPv6 - Automatically; IPv6 Mode - Native

"Automatic" is not automatic for a number of users.

I think you might have better luck if you use the Link Local Only setting for IPv6 on both your Mac and the Time Capsule.

Might be worth a try if you have not already done so.

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Answer 3

Bob Timmons

Level 10

185,030 points

Jan 7, 2018 6:26 AM in response to peterkthomas

I am not very fluent in network setup, but isn't it best to not restrict traffic on the Mac?

As I said, the "Automatic" setting is not reliable. Unless your Internet Service Provider has given you very detailed instructions on how to set up IPv6, (It will not be "Automatic"), you should use the Link Local Only setting on your Time Capsule.

I would also recommend that you use the Link Local Only setting on your Mac as well. Post back if you are not sure how to do this.

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Answer 4

Jan 6, 2018 12:51 PM in response to peterkthomas

The problem is fairly common now.. we see it regularly in these columns.

What modem router do you own? make and model please.

Who is your ISP and do they actually use IPv6 in which case things can get a bit more complicated?

How does your computer connect to the TC? WIreless or ethernet? And does it connect directly to the TC or via the main router?

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Answer 5

peterkthomas Author

Level 1

27 points

Jan 7, 2018 7:06 AM in response to Bob Timmons

Thank you. Is this correct --> System Preferences/Network/TCP/IP/Configure IPv6 - link-local only?

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Answer 6

peterkthomas Author

Level 1

27 points

Jan 7, 2018 7:00 AM in response to LaPastenague

Thank you for your quick reply. My ISP is Eastlink. I have a Arris Maestro whole home "TV" setup using Arris PVR, Arris DG3270A modem/router and an Arris WECB460/NA extender. The Mac and the TC are both on ethernet (no wireless enabled) and are connected by ethernet to the Arris Maestro box. I don't know if Eastlink uses IPv6 and cannot find anything on their support site mentioning it.

Thank you for your time.

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Answer 7

peterkthomas Author

Level 1

27 points

Jan 7, 2018 6:18 AM in response to Bob Timmons

Thank you for your quick reply. I have changed the IPv6 mode on the Time Capsule and not the Mac...I am not very fluent in network setup, but isn't it best to not restrict traffic on the Mac?

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