Wireless printer losing connection hourly.

I currently have a Cisco 4400 wireless controller running 7.0.116. We use Cisco 1262, 1242 and 1210 Access Points. I am fairly new to all this. Our issue is that we have a wireless laser device that runs fine for about 1 hour and then loses connection. I can not ping the device and the web page via IP is no longer reachable. The printer regains connection after a power off/on. I have talked with the manufacturer and supplied logs to them and they say they do not see anything. Other devices in the office are running fine. I am wondering if there is a setting closing idle ports. The only clue I have it that it appears to be when the device is idle.

We have gone 3 hours now without issue, there was one change made. I noticed that the time on the printer was manually set and lagged the network time by 6 minutes. I corrected that and we have been without issue since. Without a time server paying attention does the 4400 WLC or WPA2-PSK/AES have any sensitivity to that? Security time out caused by time issue on peripheral device?
I have moved this discussion to the Cisco Enterprise Product group. #3369390

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Hello jsimps0110,
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http://support.apple.com/kb/ht4356
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Mesh Root AP:            US052TXPEA-ASL22     64:e9:50:6a:fd:70
Mesh AP:                     US052TXPEA-ASL33     64:e9:50:d0:f1:30
Mesh AP:                     US052TXPEA-ASL34     64:e9:50:67:ae:90
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185      Mon May 5 12:13:26 2014     AP US052TXPEA-ASL34[0] (64:e9:50:67:ae:90) Device ID: 0x5012, Type: Jammer[19], Severity: 64, Channels: 6, Cluster ID: 30:bf:e0:01:1a:ef, Previous Cluster ID: 30:bf:e0:01:1a:ef, Event: Clear
189      Mon May 5 12:12:30 2014     AP US052TXPEA-ASL34[0] (64:e9:50:67:ae:90) Device ID: 0x5012, Type: Jammer[19], Severity: 64, Channels: 6, Cluster ID: 30:bf:e0:01:1a:ef, Previous Cluster ID: 30:bf:e0:01:1a:ef, Event: Set
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1339    Mon May 5 08:57:03 2014     AP's Interface:0(802.11b) Operation State Up: Base Radio MAC:64:e9:50:d0:f1:30 Cause=Radio interface reset. Status:NA
1340    Mon May 5 08:57:03 2014     AP's Interface:0(802.11b) Operation State Down: Base Radio MAC:64:e9:50:d0:f1:30 Cause=Radio interface reset. Status:NA
1341    Mon May 5 08:57:03 2014     AP's Interface:1(802.11a) Operation State Up: Base Radio MAC:64:e9:50:d0:f1:30 Cause=Radio reset due to configuration change. Status:NA
1342    Mon May 5 08:57:03 2014     AP's Interface:1(802.11a) Operation State Down: Base Radio MAC:64:e9:50:d0:f1:30 Cause=Radio reset due to configuration change. Status:NA
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1346    Mon May 5 08:56:59 2014     AP's Interface:1(802.11a) Operation State Up: Base Radio MAC:64:e9:50:d0:f1:30 Cause=Unknown Reset Status:NA
1347    Mon May 5 08:56:59 2014     AP's Interface:0(802.11b) Operation State Up: Base Radio MAC:64:e9:50:d0:f1:30 Cause=Unknown Reset Status:NA
1348    Mon May 5 08:56:58 2014     AP 'US052TXPEA-ASL33', MAC: 64:e9:50:d0:f1:30 disassociated previously due to Link Failure. Uptime: 0 days, 23 h 58 m 55 s . Reason: Capwap WTP Event request.
1400    Mon May 5 08:57:06 2014     AP's Interface:0(802.11b) Operation State Up: Base Radio MAC:64:e9:50:67:ae:90 Cause=Radio interface reset. Status:NA
1401    Mon May 5 08:57:06 2014     AP's Interface:0(802.11b) Operation State Down: Base Radio MAC:64:e9:50:67:ae:90 Cause=Radio interface reset. Status:NA
1402    Mon May 5 08:57:06 2014     AP's Interface:1(802.11a) Operation State Up: Base Radio MAC:64:e9:50:67:ae:90 Cause=Radio reset due to configuration change. Status:NA
1403    Mon May 5 08:57:06 2014     AP's Interface:1(802.11a) Operation State Down: Base Radio MAC:64:e9:50:67:ae:90 Cause=Radio reset due to configuration change. Status:NA
1408    Mon May 5 08:57:02 2014     AP's Interface:1(802.11a) Operation State Up: Base Radio MAC:64:e9:50:67:ae:90 Cause=Unknown Reset Status:NA
1409    Mon May 5 08:57:02 2014     AP's Interface:0(802.11b) Operation State Up: Base Radio MAC:64:e9:50:67:ae:90 Cause=Unknown Reset Status:NA
1410    Mon May 5 08:57:00 2014     AP 'US052TXPEA-ASL34', MAC: 64:e9:50:67:ae:90 disassociated previously due to Link Failure. Uptime: 0 days, 23 h 59 m 03 s . Reason: Capwap WTP Event request.
1415    Mon May 5 08:56:33 2014     Mesh child node '64:e9:50:d0:f1:3f' has changed its parent to mesh node '64:e9:50:6a:fd:70' from mesh node '64:e9:50:6a:fd:70'.
1672    Mon May 5 08:27:22 2014     Mesh child node '64:e9:50:d0:f1:3f' is no longer associated with mesh node '64:e9:50:6a:fd:70'.
1674    Mon May 5 08:26:46 2014     AP Disassociated. Base Radio MAC:64:e9:50:67:ae:90
1675    Mon May 5 08:26:46 2014     AP's Interface:1(802.11a) Operation State Down: Base Radio MAC:64:e9:50:67:ae:90 Cause=Heartbeat Timeout Status:NA
1676    Mon May 5 08:26:46 2014     AP's Interface:0(802.11b) Operation State Down: Base Radio MAC:64:e9:50:67:ae:90 Cause=Heartbeat Timeout Status:NA
1750    Mon May 5 08:09:19 2014     AP's Interface:0(802.11b) Operation State Up: Base Radio MAC:64:e9:50:d0:f1:30 Cause=Radio interface reset. Status:NA
1751    Mon May 5 08:09:19 2014     AP's Interface:0(802.11b) Operation State Down: Base Radio MAC:64:e9:50:d0:f1:30 Cause=Radio interface reset. Status:NA
1752    Mon May 5 08:09:19 2014     AP's Interface:1(802.11a) Operation State Up: Base Radio MAC:64:e9:50:d0:f1:30 Cause=Radio reset due to configuration change. Status:NA
1753    Mon May 5 08:09:19 2014     AP's Interface:1(802.11a) Operation State Down: Base Radio MAC:64:e9:50:d0:f1:30 Cause=Radio reset due to configuration change. Status:NA
1754    Mon May 5 08:09:16 2014     AP's Interface:1(802.11a) Operation State Up: Base Radio MAC:64:e9:50:67:ae:90 Cause=Unknown Reset Status:NA
1755    Mon May 5 08:09:16 2014     AP's Interface:0(802.11b) Operation State Up: Base Radio MAC:64:e9:50:67:ae:90 Cause=Unknown Reset Status:NA
1756    Mon May 5 08:09:16 2014     AP's Interface:1(802.11a) Operation State Up: Base Radio MAC:64:e9:50:d0:f1:30 Cause=Unknown Reset Status:NA
1757    Mon May 5 08:09:16 2014     AP's Interface:0(802.11b) Operation State Up: Base Radio MAC:64:e9:50:d0:f1:30 Cause=Unknown Reset Status:NA
1758    Mon May 5 08:09:14 2014     AP 'US052TXPEA-ASL34', MAC: 64:e9:50:67:ae:90 disassociated previously due to Link Failure. Uptime: 0 days, 23 h 11 m 19 s . Reason: Capwap WTP Event request.
1759    Mon May 5 08:09:13 2014     AP 'US052TXPEA-ASL33', MAC: 64:e9:50:d0:f1:30 disassociated previously due to Link Failure. Uptime: 0 days, 23 h 11 m 13 s . Reason: Capwap WTP Event request.
1811    Mon May 5 08:09:19 2014     AP's Interface:0(802.11b) Operation State Up: Base Radio MAC:64:e9:50:67:ae:90 Cause=Radio interface reset. Status:NA
1812    Mon May 5 08:09:19 2014     AP's Interface:0(802.11b) Operation State Down: Base Radio MAC:64:e9:50:67:ae:90 Cause=Radio interface reset. Status:NA
1813    Mon May 5 08:09:19 2014     AP's Interface:1(802.11a) Operation State Up: Base Radio MAC:64:e9:50:67:ae:90 Cause=Radio reset due to configuration change. Status:NA
1814    Mon May 5 08:09:19 2014     AP's Interface:1(802.11a) Operation State Down: Base Radio MAC:64:e9:50:67:ae:90 Cause=Radio reset due to configuration change. Status:NA
1819    Mon May 5 08:09:16 2014     AP's Interface:1(802.11a) Operation State Up: Base Radio MAC:64:e9:50:67:ae:90 Cause=Unknown Reset Status:NA
1820    Mon May 5 08:09:16 2014     AP's Interface:0(802.11b) Operation State Up: Base Radio MAC:64:e9:50:67:ae:90 Cause=Unknown Reset Status:NA
1823    Mon May 5 08:09:14 2014     AP 'US052TXPEA-ASL34', MAC: 64:e9:50:67:ae:90 disassociated previously due to Link Failure. Uptime: 0 days, 23 h 11 m 19 s . Reason: Capwap WTP Event request.
1826    Mon May 5 08:08:43 2014     Mesh child node '64:e9:50:d0:f1:3f' has changed its parent to mesh node '64:e9:50:6a:fd:70' from mesh node '64:e9:50:6a:fd:7f'.
1929    Mon May 5 07:38:58 2014     AP Disassociated. Base Radio MAC:64:e9:50:d0:f1:30
1930    Mon May 5 07:38:58 2014     AP's Interface:1(802.11a) Operation State Down: Base Radio MAC:64:e9:50:d0:f1:30 Cause=Heartbeat Timeout Status:NA
1931    Mon May 5 07:38:58 2014     AP's Interface:0(802.11b) Operation State Down: Base Radio MAC:64:e9:50:d0:f1:30 Cause=Heartbeat Timeout Status:NA
2000    Mon May 5 07:38:54 2014     AP Disassociated. Base Radio MAC:64:e9:50:67:ae:90
2001    Mon May 5 07:38:54 2014     AP's Interface:1(802.11a) Operation State Down: Base Radio MAC:64:e9:50:67:ae:90 Cause=Heartbeat Timeout Status:NA
2002    Mon May 5 07:38:54 2014     AP's Interface:0(802.11b) Operation State Down: Base Radio MAC:64:e9:50:67:ae:90 Cause=Heartbeat Timeout
2008    Mon May 5 07:30:33 2014     AP's Interface:0(802.11b) Operation State Up: Base Radio MAC:64:e9:50:d0:f1:30 Cause=Radio interface reset. Status:NA
2009    Mon May 5 07:30:33 2014     AP's Interface:0(802.11b) Operation State Down: Base Radio MAC:64:e9:50:d0:f1:30 Cause=Radio interface reset. Status:NA
2010    Mon May 5 07:30:33 2014     AP's Interface:1(802.11a) Operation State Up: Base Radio MAC:64:e9:50:d0:f1:30 Cause=Radio reset due to configuration change. Status:NA
2011    Mon May 5 07:30:33 2014     AP's Interface:1(802.11a) Operation State Down: Base Radio MAC:64:e9:50:d0:f1:30 Cause=Radio reset due to configuration change. Status:NA
2012    Mon May 5 07:30:30 2014     AP's Interface:1(802.11a) Operation State Up: Base Radio MAC:64:e9:50:d0:f1:30 Cause=Unknown Reset Status:NA
2013    Mon May 5 07:30:30 2014     AP's Interface:0(802.11b) Operation State Up: Base Radio MAC:64:e9:50:d0:f1:30 Cause=Unknown Reset Status:NA
2014    Mon May 5 07:30:27 2014     AP 'US052TXPEA-ASL33', MAC: 64:e9:50:d0:f1:30 disassociated previously due to Link Failure. Uptime: 0 days, 22 h 32 m 28 s . Reason: Capwap WTP Event request.

Hi,
After performing the site survey, select low noise channel on the access-points, yes it seem due to the interference clients are dropping their connection.

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