Time Capsule has two IP addresses

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Level 1

9 points

Time Capsule has two IP addresses

When I enter Airport Utility there is a little flag next to the name of our device, "Capsule," with the number two on it. When I click on it I see an alert that says, "Your Time Capsule has two IP addresses." I've just searched extensively online and on this forum and am a little concerned that I can find no references at all. We hope one of the gurus here have seen it. We've made no changes at all to our setup and this is the only time we've seen this in the three years we've had the TC.

OS X Mountain Lion (10.8.2), MBP Retina • iMac • iPad 3 • Touch

Posted on Mar 15, 2013 12:22 PM

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Answer 1

Top-ranking reply

edex67

Level 4

3,255 points

Mar 15, 2013 12:37 PM in response to OrganicBooks

Can you provide a screenshot of this? It isn't a standard message.

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Answer 2

OrganicBooks Author

Level 1

9 points

Mar 15, 2013 7:18 PM in response to edex67

I so wish I'd thought to take one. It's not there now, but I'll post it here if/when it returns. Our Time Capsule is showing its age and we're seeing a lot of weirdness we didn't see when it was young and on the same network. Our connection uses dynamic IPs and it's not unusual to logon to a Mac and see "Your IP address is In use by another machine."

Apart from a failing Time Capsule do you have any idea of what could cause this? I have AppleCare and can call if it seems serious. Over the years I have found the wisdom here to be, on the whole, a little deeper than what the typical Apple tech can manage.

I was going to post another question to a different forum but perhaps you'll think it could be related. A WD My Book attached to a MBP is also failing and makes a lot of noise when its spinning. So much that I've temporarily disabled Time Capsule. As this is the only thing this MBP has to do with the disk, it's disconcerting to hear it clanging away with no indication of why. Time Machine isn't spinning, nor can I see what's calling it from Activity Monitor.

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Answer 3

dmg15

Level 1

10 points

Mar 27, 2016 8:59 AM in response to OrganicBooks

Same with me, time capsule shows multiple IP addresses (2, 3 or 4) even though all my devices have dhcp reservations via seperate DHCP server (ISP supplied fibre gateway) It has its own static IP and then the IPs of all three apple tv 3's on the network. Never shows the IP of the apple TV 4 though.

Unlikely that its a TC on the way out as mine is relatively new and theres a few people with the same issue in other forums.

I didnt discover it in Airport Utility though, rather on FING wifi scanner ios app.

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Answer 4

Tesserax

Level 10

154,150 points

Mar 27, 2016 9:15 AM in response to OrganicBooks

What exact model is your TC? What is the make & model of your Internet modem?

A WD My Book attached to a MBP is also failing and makes a lot of noise when its spinning. So much that I've temporarily disabled Time Capsule. As this is the only thing this MBP has to do with the disk, it's disconcerting to hear it clanging away with no indication of why. Time Machine isn't spinning, nor can I see what's calling it from Activity Monitor.

It sounds (sorry, no pun intended) that the WD My Book's internal hard drive is failing. I assume by Time Capsule, you mean Time Machine ... correct? I would strongly suggest that you disconnect the My Book until you can get another drive or use your TC instead. Depending on what model of TC that you have, it may need replacing as well. Typically, networking hardware has a useful life of around 5 years. Unfortunately, the early TCs has a much shorter life span.

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Answer 5

dmg15

Level 1

10 points

Mar 27, 2016 10:46 AM in response to Tesserax

AirPort Time Capsule 802.11ac 2TB

SN - C86L21Z2F9H5

Wifi, dchp, and nat are all turned off, local IP is set statically as 10.0.0.254 (and also reserved by the dhcp server as 10.0.0.254).

Gateway is a Technicolor TG799vac with firmware v15.3

Wifi is enabled with two access points (a 2.4ghz and 5ghz), dhcp is enabled with reservations for all network devices, NAT is on, upnp is on, nat-pmp is off, local IP is 10.0.0.1 and WAN IP is statically assigned by ISP DHCP.

WHen i do a port scan of the timecapsule and the apple tv's, they all have the save 5 ports open 3689, 5000, 7000, 7100 and 62078.

I think that's all the possibly relevant info.

Cheers.

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Answer 6

Tesserax

Level 10

154,150 points

Mar 27, 2016 3:33 PM in response to dmg15

AirPort Time Capsule 802.11ac 2TB

SN - C86L21Z2F9H5

Wifi, dchp, and nat are all turned off, local IP is set statically as 10.0.0.254 (and also reserved by the dhcp server as 10.0.0.254).

Sorry, but I was responding to the OP. However, what you have provided is telling me that you have the (currently) latest 802.11ac Time Capsule (TC). It looks like you have it reconfigured as a bridge and that it is basically acting as an Ethernet switch. Not sure why FING is reporting multiple addresses for the TC itself. Maybe if you provide a screen shot. Better still, you issue, although seems related, may have a totally different solution since there are two different utilities being discussed (AirPort Utility vs FING), to start a new post.

Gateway is a Technicolor TG799vac with firmware v15.3

Wifi is enabled with two access points (a 2.4ghz and 5ghz), dhcp is enabled with reservations for all network devices, NAT is on, upnp is on, nat-pmp is off, local IP is 10.0.0.1 and WAN IP is statically assigned by ISP DHCP.

... and this would be your "main" Internet router and is fully functioning as a wireless router.

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Answer 7

May 30, 2016 2:17 AM in response to OrganicBooks

Hello,

This issue has been fixed with the new firmware update, which i highly recommend!

The problem was that the Time Capsule's Bonjour service was caching the IP addresses of Apple-branded devices..

So, for example, if your AppleTV was using xxx.xxx.xxx.22 when it was on, instead of losing that IP when it went in sleep mode, the Time Capsule would 'acquire' it via this Bonjour cache so that no other device could take it while the AppleTV was not using it... Then, when the AppleTV would come back online, it could get its same IP address from the DHCP server.

This was causing all kinds of mayhem on my router...

See the details here:

AirPort Base Station Firmware Update 7.6.7 Information

i hope this helps!

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