Apple TV drops Ethernet every half hour

Question

Apple TV drops Ethernet every half hour

Hi all,

I am sys-loging one of my switches which has several Apple TV's connected. One of the Apple TV's regularly drops the Ethernet link and reconnects. A little over half an hour. Any ideas why it would do this?

The network cables + infrastructure are all tested & certificated to Cat 6. I may try different cabling + switch port just to be sure.

Here's a snippet:

<188>1 2015-06-15T18:19:23.047120+12:00 10.1.11.56 %LINK-W-Down - - - %LINK-W-Down: 2/g11

<190>1 2015-06-15T18:19:25.146215+12:00 10.1.11.56 %LINK-I-Up - - - %LINK-I-Up: 2/g11

<188>1 2015-06-15T18:19:55.018990+12:00 10.1.11.56 %STP-W-PORTSTATUS - - - %STP-W-PORTSTATUS: 2/g11: STP status Forwarding

<188>1 2015-06-15T18:43:33.027135+12:00 10.1.11.56 %LINK-W-Down - - - %LINK-W-Down: 2/g11

<190>1 2015-06-15T18:43:35.021003+12:00 10.1.11.56 %LINK-I-Up - - - %LINK-I-Up: 2/g11

<188>1 2015-06-15T18:44:04.890391+12:00 10.1.11.56 %STP-W-PORTSTATUS - - - %STP-W-PORTSTATUS: 2/g11: STP status Forwarding

<188>1 2015-06-15T19:07:53.005895+12:00 10.1.11.56 %LINK-W-Down - - - %LINK-W-Down: 2/g11

<190>1 2015-06-15T19:07:55.292532+12:00 10.1.11.56 %LINK-I-Up - - - %LINK-I-Up: 2/g11

<188>1 2015-06-15T19:08:25.160170+12:00 10.1.11.56 %STP-W-PORTSTATUS - - - %STP-W-PORTSTATUS: 2/g11: STP status Forwarding

<188>1 2015-06-15T19:33:02.985795+12:00 10.1.11.56 %LINK-W-Down - - - %LINK-W-Down: 2/g11

<190>1 2015-06-15T19:33:04.998591+12:00 10.1.11.56 %LINK-I-Up - - - %LINK-I-Up: 2/g11

<188>1 2015-06-15T19:33:34.871655+12:00 10.1.11.56 %STP-W-PORTSTATUS - - - %STP-W-PORTSTATUS: 2/g11: STP status Forwarding

<188>1 2015-06-15T19:43:22.977093+12:00 10.1.11.56 %LINK-W-Down - - - %LINK-W-Down: 2/g11

<190>1 2015-06-15T19:43:25.090077+12:00 10.1.11.56 %LINK-I-Up - - - %LINK-I-Up: 2/g11

<188>1 2015-06-15T19:43:54.968281+12:00 10.1.11.56 %STP-W-PORTSTATUS - - - %STP-W-PORTSTATUS: 2/g11: STP status Forwarding

<188>1 2015-06-15T20:04:27.959129+12:00 10.1.11.56 %LINK-W-Down - - - %LINK-W-Down: 2/g11

<190>1 2015-06-15T20:04:30.161981+12:00 10.1.11.56 %LINK-I-Up - - - %LINK-I-Up: 2/g11

<188>1 2015-06-15T20:05:00.039812+12:00 10.1.11.56 %STP-W-PORTSTATUS - - - %STP-W-PORTSTATUS: 2/g11: STP status Forwarding

<188>1 2015-06-15T20:34:52.934414+12:00 10.1.11.56 %LINK-W-Down - - - %LINK-W-Down: 2/g11

<190>1 2015-06-15T20:34:54.988792+12:00 10.1.11.56 %LINK-I-Up - - - %LINK-I-Up: 2/g11

<188>1 2015-06-15T20:35:24.867991+12:00 10.1.11.56 %STP-W-PORTSTATUS - - - %STP-W-PORTSTATUS: 2/g11: STP status Forwarding

<188>1 2015-06-15T21:08:42.905995+12:00 10.1.11.56 %LINK-W-Down - - - %LINK-W-Down: 2/g11

<190>1 2015-06-15T21:08:44.996896+12:00 10.1.11.56 %LINK-I-Up - - - %LINK-I-Up: 2/g11

<188>1 2015-06-15T21:09:14.875148+12:00 10.1.11.56 %STP-W-PORTSTATUS - - - %STP-W-PORTSTATUS: 2/g11: STP status Forwarding

<188>1 2015-06-15T21:34:47.885170+12:00 10.1.11.56 %LINK-W-Down - - - %LINK-W-Down: 2/g11

<190>1 2015-06-15T21:34:50.044464+12:00 10.1.11.56 %LINK-I-Up - - - %LINK-I-Up: 2/g11

<188>1 2015-06-15T21:35:19.924951+12:00 10.1.11.56 %STP-W-PORTSTATUS - - - %STP-W-PORTSTATUS: 2/g11: STP status Forwarding

<188>1 2015-06-15T22:09:42.854432+12:00 10.1.11.56 %LINK-W-Down - - - %LINK-W-Down: 2/g11

<190>1 2015-06-15T22:09:44.843080+12:00 10.1.11.56 %LINK-I-Up - - - %LINK-I-Up: 2/g11

<188>1 2015-06-15T22:10:14.712460+12:00 10.1.11.56 %STP-W-PORTSTATUS - - - %STP-W-PORTSTATUS: 2/g11: STP status Forwarding

Posted on Jun 15, 2015 8:10 PM

Reply

Answer 1

Rudegar

Level 10

179,862 points

Jun 16, 2015 7:52 AM in response to Matt_nz_Karamu

could be many things a periodic defect hardware or... try another port in the switch or another switch

Reply

Answer 2

Jun 21, 2015 1:32 PM in response to Rudegar

Tried another switchport, same thing, also changed infrastructure to a new cable, also same issue. Ill try a different switch, but I suspect its something with the Apple TV.

Doesn't appear to affect usage, but its just annoying seeing something regularly drop and connect.

Matt

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Answer 3

geotar

Level 1

4 points

Oct 13, 2015 11:35 PM in response to Matt_nz_Karamu

Same thing here, but much more frequently.

I have no idea why..

Reply

Answer 4

Findet

Level 1

4 points

Mar 21, 2016 4:06 AM in response to geotar

Same issue here with TP-Link switch. Port 9 is linked to Apple TV 4.

None of the other devices is showing the same behavior.

What is the reason for this? Any ideas?

How to inform Apple about this?

Reply

Answer 5

Apr 9, 2016 1:55 PM in response to Findet

Same issue here. Cisco SG500X apple TV floods log with...

09-Apr-2016 08:43:24 :%STP-W-PORTSTATUS: gi1/10: STP status Forwarding

09-Apr-2016 08:43:20 :%LINK-I-Up: gi1/10, aggregated (1)

09-Apr-2016 08:43:18 :%LINK-W-Down: gi1/10, aggregated (1)

09-Apr-2016 08:43:14 :%LINK-I-Up: gi1/10

09-Apr-2016 08:43:12 :%LINK-W-Down: gi1/10

09-Apr-2016 08:30:02 :%STP-W-PORTSTATUS: gi1/10: STP status Forwarding, aggregated (1)

09-Apr-2016 08:29:58 :%LINK-I-Up: gi1/10, aggregated (1)

09-Apr-2016 08:29:56 :%LINK-W-Down: gi1/10, aggregated (1)

09-Apr-2016 08:29:19 :%STP-W-PORTSTATUS: gi1/10: STP status Forwarding

09-Apr-2016 08:29:14 :%LINK-I-Up: gi1/10

09-Apr-2016 08:29:12 :%LINK-W-Down: gi1/10

09-Apr-2016 08:05:07 :%STP-W-PORTSTATUS: gi1/10: STP status Forwarding

09-Apr-2016 08:05:02 :%LINK-I-Up: gi1/10, aggregated (1)

09-Apr-2016 08:05:00 :%LINK-W-Down: gi1/10, aggregated (1)

09-Apr-2016 08:04:57 :%LINK-I-Up: gi1/10

09-Apr-2016 08:04:55 :%LINK-W-Down: gi1/10

09-Apr-2016 07:34:03 :%STP-W-PORTSTATUS: gi1/10: STP status Forwarding, aggregated (1)

09-Apr-2016 07:33:59 :%LINK-I-Up: gi1/10, aggregated (2)

09-Apr-2016 07:33:57 :%LINK-W-Down: gi1/10, aggregated (2)

09-Apr-2016 07:29:38 :%STP-W-PORTSTATUS: gi1/10: STP status Forwarding

09-Apr-2016 07:29:33 :%LINK-I-Up: gi1/10, aggregated (1)

09-Apr-2016 07:29:31 :%LINK-W-Down: gi1/10, aggregated (1)

09-Apr-2016 07:29:28 :%LINK-I-Up: gi1/10

09-Apr-2016 07:29:26 :%LINK-W-Down: gi1/10

Any fixes?

Reply

Answer 6

CJRL

Level 1

4 points

Oct 12, 2016 1:14 PM in response to Jason Istre

Same here. Cisco SG300-28 switch, no port or cable errors, and the ATV Gen 4 is the only device that this happens with. It's filling the logs with junk! I tried disabling all of the Cisco 'Green Ethernet' port power management features in case Apple was tripping over them, but nothing changed.

2147478928

2016-Oct-13 06:58:16	Informational	%LINK-I-Up: gi20
2147478929	2016-Oct-13 06:58:13	Warning	%LINK-W-Down: gi20
2147478930	2016-Oct-13 06:57:45	Informational	%LINK-I-Up: gi4
2147478931	2016-Oct-13 06:57:40	Warning	%LINK-W-Down: gi4
2147478932	2016-Oct-13 06:50:12	Informational	%LINK-I-Up: gi20, aggregated (5)
2147478933	2016-Oct-13 06:50:10	Warning	%LINK-W-Down: gi20, aggregated (5)
2147478934	2016-Oct-13 06:45:44	Informational	%LINK-I-Up: gi20
2147478935	2016-Oct-13 06:45:41	Warning	%LINK-W-Down: gi20
2147478936	2016-Oct-13 06:36:02	Informational	%LINK-I-Up: gi20, aggregated (1)
2147478937	2016-Oct-13 06:36:00	Warning	%LINK-W-Down: gi20, aggregated (1)
2147478938	2016-Oct-13 06:35:42	Informational	%LINK-I-Up: gi20
2147478939	2016-Oct-13 06:35:39	Warning	%LINK-W-Down: gi20
2147478940	2016-Oct-13 06:30:30	Informational	%LINK-I-Up: gi20, aggregated (1)
2147478941	2016-Oct-13 06:30:28	Warning	%LINK-W-Down: gi20, aggregated (1)
2147478942	2016-Oct-13 06:30:10	Informational	%LINK-I-Up: gi20
2147478943	2016-Oct-13 06:30:07	Warning	%LINK-W-Down: gi20
2147478944	2016-Oct-13 06:20:42	Informational	%LINK-I-Up: gi20, aggregated (1)
2147478945	2016-Oct-13 06:20:40	Warning	%LINK-W-Down: gi20, aggregated (1)
2147478946	2016-Oct-13 06:20:08	Informational	%LINK-I-Up: gi20
2147478947	2016-Oct-13 06:20:05	Warning	%LINK-W-Down: gi20
2147478948	2016-Oct-13 06:14:23	Informational	%LINK-I-Up: gi20, aggregated (1)
2147478949	2016-Oct-13 06:14:21	Warning	%LINK-W-Down: gi20, aggregated (1)
2147478950	2016-Oct-13 06:13:48	Informational	%LINK-I-Up: gi20
2147478951	2016-Oct-13 06:13:46	Warning	%LINK-W-Down: gi20
2147478952	2016-Oct-13 06:04:12	Informational	%LINK-I-Up: gi20, aggregated (1)
2147478953	2016-Oct-13 06:04:10	Warning	%LINK-W-Down: gi20, aggregated (1)
2147478954	2016-Oct-13 06:03:47	Informational	%LINK-I-Up: gi20

Reply

Answer 7

CJRL

Level 1

4 points

Oct 15, 2016 1:55 AM in response to CJRL

My ATV had a static IP address assignment via my DHCP server. After other reports of similar issues, I deleted the DHCP entry on the server and manually assigned the IP address and network settinga on the ATV in an address range outside my DHCP pool. In other words, a static IP address assignment (along with subnet, DNS, etc). And that stopped the port restarts. I now have an absolutely clear event log on my switch, going on 24 hours now. Kinda defeats the purpose of DHCP, though.....

This seems to be a a bit of a problem that's been reported back on the ATV3 and ATV2. Someone in Apple isn't sticking to the standards....

Reply

Answer 8

Xibata

Level 1

8 points

Jan 27, 2017 10:20 AM in response to Matt_nz_Karamu

My logs were getting inundated with ifstatus messages too..

I had to apply this to each AppleTV switchport interface:

no logging event link-status

Running on Cisco WS-C3750G-48TS running 12.2(58)SE1.

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