Access-Point going up/down

Hello All
We got Issue with One Access Point [ model - AP1242AG ] - it goes up/down. Users connected on this Access Point get disconnected or time-out connecting to Server. The access-point was installed around 3-4 weeks back. We checked the cable connecting to the Access Point but didnt notice like disconnected or time-out.
[ Access Point was configured with these options ]
AP Name - JD1
status - Enabled
AP mode - Local
IP address - Static
No of Radio Interface - 2
802.11 b/g/n
802.11 a/n
which debug command will help to identify the issue or GUI option
thanks in advance
Cisco Kid

Hi All
I restarted the Access Point and will see what happens. Our Access Point and WLC are in the Same VLAN.
WLC is connected to Layer3 switch and the port is configured as Trunk port with additional command switchport trunk native vlan 12.
The access point ports configured are also configured as
switchport mode trunk
swichport trunk native vlan 12
Are these configuration correct for controller and Access Point.
The following is the show interface output where the AP is connected
sh interfaces fastEthernet 0/9
FastEthernet0/9 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is 0021.a1d2.ee09 (bia 0021.a1d2.ee09)
Description: **AP3**
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is 10/100BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:40, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 518000 bits/sec, 130 packets/sec
     25673274 packets input, 5670744879 bytes, 0 no buffer
     Received 2413785 broadcasts (0 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 557119 multicast, 0 pause input
     0 input packets with dribble condition detected
     16665439077 packets output, 10663148678995 bytes, 0 underruns
     0 output errors, 0 collisions, 1 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 PAUSE output
     0 output buffer failures, 0 output buffers swapped out

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sarahr202 wrote:Hi everybodyLet say we have an light weight access point ap1. Ap1 is broadcasting two ssids:cisco1 which is mapped to vlan 1cisco 2 which is mapped to vlan 2If ap1 is using channel 6 for cisco 1, does it mean ap1 will also use same channel i.e channel 6 for cisco2?thanks and have a great weekend.
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description WLC2504
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https://supportforums.cisco.com/docs/DOC-13954
http://www.cisco.com/en/US/products/ps6366/products_tech_note09186a0080b1a506.shtml
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https://supportforums.cisco.com/videos/2499
http://www.cisco.com/en/US/products/ps10315/products_configuration_example09186a0080bd1100.shtml
https://www.google.com/url?sa=t&source=web&cd=8&ved=0CFQQtwIwBw&url=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DWk_bRdmsQlA&ei=_BEyUeCYM8TdqAHHsICAAw&usg=AFQjCNF8PiVBQK1Kipb4j8AzD153bKtmgA&sig2=smHhNVmCr2of2NzbnDhGmw
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Sent from Cisco Technical Support iPhone App

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Awesome.
Thanks for all of the responses.
Leolaohoo,
Here is my output. I am assumming this command is essentially the same as using a cable tester? If it is
F-1-C3750#test cable-diagnostics tdr int g2/0/7
TDR test started on interface Gi2/0/7
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Gi2/0/7   1000M Pair A     N/A                N/A         Not Completed
                Pair B     N/A                N/A         Not Completed
                Pair C     N/A                N/A         Not Completed
                Pair D     N/A                N/A         Not Completed
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Hi,
Is the problem happening with all APs or some?
Does it happen with only MAPs? or it happens with RAPs as well?
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Have you made a site survey to check spectrum around the AP is clear with no valuable noise or interference?
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I have a WLC with 35 AP configured.
In the monitor page of the WLC there is an Access Point Summary Section to show the radios.
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Sometimes it will go down to 34 AP's but a page refresh see's it go back up to 35.
There should be 35 AP's total but I do have one off at the moment as I am waiting for a new switch.
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Ok, then there's only one possible thing left and I've seen quiet a few APs do this.
The AP reports three things: The unit itself, and the two radios.
So what you are seeing is the AP is reporting that the unit is operational, however, the slim chance of both the radios going into a state of "unsupported" is what you are seeing. It's nothing to be alarmed off. It's just a false state. You may need to go to the entire list of your APs and go to the "Interface" tab and make sure that "Admin Status" is reporting as "Enabled" and "Oper Status" is reporting as "OK". If it's reporting the "Oper Status" as "Down" or "Unsupported", then just reboot the AP.
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Indirectly Connected Access points

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According to the Cisco 3850 QA sheet, (http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps12686/qa_c67-722110.html), this unit does not support indirectly connected AP's.
Q.
Does the Cisco Catalyst 3850 support indirectly connected access points?
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What doesnt make sense to me is that i can buy 50 AP licenses per switch/wlc so i don't understand how i am going to attach these AP's to the 3850.
In our current setup we have a 5508 connected to a Cat4506 with all the AP's connected to an "AP vlan" on the Cat4506 - fairly typical setup i imagine.
We couldnt have each AP connected directly to the 3850 do to cabling and multiple buildings.
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the asnwer to that is a bit farther down.
Q.
How is the access point count license managed across a Cisco Catalyst 3850 stack?
A. The total access point count license of a Cisco Catalyst 3850 stack is equal to the sum of all the individual member access point count licenses, up to a maximum of 50 access points. When new members are added to the stack, the total access point count license of the stack is automatically recalculated. When members are removed from the stack, the access point count license does not decrement until a reload of the stack.
teh 3850 is designed to have AP's terminate in the closets vs coming all the way back to the core.
HTH,
Steve
Please remember to rate useful posts, and mark questions as answered

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Thank you in advance.

Some website indicates "KB290440" but it is not found in the history of update.
That's the latest "servicing stack". I think it is optional. More significant I think would be whether you have the latest rollup, which is also optional, so far. E.g. at the top of View your update history see what you have for
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FWIW here is mine:
http://support2.microsoft.com/?kbid=3000850
HTH
Robert Aldwinckle

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