Client disconnect from the AP randomly

Solanin19 — Mon, 05 Jul 2021 17:10:54 GMT

hello,

i'm using a WLC 2504 with 10AP, i'm working in a building with 3 floors, and i've got only a issue with the third floor where there is 2 AP, one in the marketing side, one in the dev side.

The one that causing me trouble is in the marketing side, the ap disconnect randomly and then reconnect, and client are disconnected from the SSID randomly even if the ap is connected.

Log exemple:

Log System Time Trap

0	Tue Apr 2 10:47:31 2019	Rogue AP : b0:fa:eb:d9:6b:90 removed from Base Radio MAC : 70:ea:1a:e4:c1:20 Interface no:0(802.11n(2.4 GHz))
1	Tue Apr 2 10:47:14 2019	Rogue client: a8:96:75:c6:c9:2c is detected by 1 APs Rogue Client Bssid: cc:b2:55:ca:56:7b, State: Alert, Last detecting AP :70:79:b3:ef:99:e0 Rogue Client gateway mac cc:b2:55:ca:56:7b.
2	Tue Apr 2 10:45:04 2019	Rogue client: 40:9c:28:bb:e5:fa is detected by 1 APs Rogue Client Bssid: 00:1a:8c:85:5e:01, State: Alert, Last detecting AP :70:ea:1a:e4:c1:20 Rogue Client gateway mac 00:00:00:00:00:00.
3	Tue Apr 2 10:45:01 2019	Rogue client: a4:6c:f1:bf:e1:6a is detected by 1 APs Rogue Client Bssid: 00:1a:8c:09:fd:f1, State: Alert, Last detecting AP :70:ea:1a:e4:b2:a0 Rogue Client gateway mac 00:00:00:00:00:00.
4	Tue Apr 2 10:44:46 2019	Rogue AP: 48:d7:05:f1:94:61 detected on Base Radio MAC: 70:79:b3:ef:99:e0 Interface no: 1(802.11n(5 GHz)) Channel: 36 RSSI: -61 SNR: 0 Classification: unclassified, State: Alert, RuleClassified : N, Severity Score: 0, RuleName: N.A. ,Classified AP MAC: 00:00:00:00:00:00 ,Classified RSSI: 0
5	Tue Apr 2 10:44:39 2019	Interference Profile Failed for Base Radio MAC: 00:ee:ab:75:11:60 and slotNo: 0
6	Tue Apr 2 10:44:36 2019	Rogue AP: 68:15:90:15:67:40 detected on Base Radio MAC: 00:ee:ab:0a:60:00 Interface no: 0(802.11n(2.4 GHz)) Channel: 11 RSSI: -83 SNR: 1 Classification: unclassified, State: Alert, RuleClassified : N, Severity Score: 0, RuleName: N.A. ,Classified AP MAC: 00:00:00:00:00:00 ,Classified RSSI: 0
7	Tue Apr 2 10:44:36 2019	Rogue AP: 68:15:90:15:67:40 detected on Base Radio MAC: 00:ee:ab:75:11:60 Interface no: 0(802.11n(2.4 GHz)) Channel: 11 RSSI: -82 SNR: 2 Classification: unclassified, State: Alert, RuleClassified : N, Severity Score: 0, RuleName: N.A. ,Classified AP MAC: 00:00:00:00:00:00 ,Classified RSSI: 0
8	Tue Apr 2 10:44:21 2019	Rogue AP: 00:25:00:ff:94:73 detected on Base Radio MAC: 00:ee:ab:0a:61:60 Interface no: 1(802.11a) Channel: 44 RSSI: -38 SNR: 26 Classification: unclassified, State: Alert, RuleClassified : N, Severity Score: 0, RuleName: N.A. ,Classified AP MAC: 00:00:00:00:00:00 ,Classified RSSI: 0
9	Tue Apr 2 10:44:06 2019	Rogue AP : 00:37:b7:67:de:f6 removed from Base Radio MAC : 00:ee:ab:75:11:60 Interface no:0(802.11n(2.4 GHz))
10	Tue Apr 2 10:44:01 2019	Rogue AP: 4e:66:41:00:dd:c6 detected on Base Radio MAC: 00:ee:ab:0a:61:60 Interface no: 0(802.11n(2.4 GHz)) Channel: 11 RSSI: -81 SNR: 4 Classification: unclassified, State: Alert, RuleClassified : N, Severity Score: 0, RuleName: N.A. ,Classified AP MAC: 00:00:00:00:00:00 ,Classified RSSI: 0
11	Tue Apr 2 10:44:01 2019	Rogue AP: 4e:66:41:00:dd:c6 detected on Base Radio MAC: 00:ee:ab:f3:36:c0 Interface no: 0(802.11n(2.4 GHz)) Channel: 11 RSSI: -77 SNR: 9 Classification: unclassified, State: Alert, RuleClassified : N, Severity Score: 0, RuleName: N.A. ,Classified AP MAC: 00:00:00:00:00:00 ,Classified RSSI: 0
12	Tue Apr 2 10:43:22 2019	Noise Profile Updated to Pass for Base Radio MAC: 70:79:b3:c7:79:00 and slotNo: 1
13	Tue Apr 2 10:43:21 2019	Noise Profile Updated to Pass for Base Radio MAC: 70:79:b3:ef:99:e0 and slotNo: 1
14	Tue Apr 2 10:43:19 2019	Rogue AP: 10:44:00:57:ca:db detected on Base Radio MAC: 00:ee:ab:f3:36:c0 Interface no: 0(802.11n(2.4 GHz)) Channel: 11 RSSI: -78 SNR: 8 Classification: unclassified, State: Alert, RuleClassified : N, Severity Score: 0, RuleName: N.A. ,Classified AP MAC: 00:00:00:00:00:00 ,Classified RSSI: 0
15	Tue Apr 2 10:43:18 2019	Rogue AP : 94:b4:0f:6f:da:40 removed from Base Radio MAC : 00:ee:ab:0a:7b:00 Interface no:0(802.11n(2.4 GHz))
16	Tue Apr 2 10:42:47 2019	Load Client Profile Failed for Base Radio MAC: 00:ee:ab:0a:61:60 and slotNo: 1 current 14 threshold 12
17	Tue Apr 2 10:42:47 2019	Rogue AP : 58:b3:fc:95:9a:7a removed from Base Radio MAC : 00:ee:ab:0a:7b:00 Interface no:0(802.11n(2.4 GHz))
18	Tue Apr 2 10:42:47 2019	Rogue AP : 58:b3:fc:95:9a:7a removed from Base Radio MAC : 70:ea:1a:e4:b2:a0 Interface no:0(802.11n(2.4 GHz))
19	Tue Apr 2 10:42:33 2019	Noise Profile Updated to Pass for Base Radio MAC: 70:ea:1a:e4:c1:20 and slotNo: 1
20	Tue Apr 2 10:42:32 2019	Interference Profile Failed for Base Radio MAC: 70:ea:1a:e4:c1:20 and slotNo: 0
21	Tue Apr 2 10:42:30 2019	RF Manager updated TxPower for AP AP-2-B Base Radio MAC: 00:ee:ab:0a:61:60 and Radio Type: 802.11a New Tx Power is: 1 , Reason: DTPC
22	Tue Apr 2 10:42:30 2019	RF Manager updated TxPower for AP AP-1-A Base Radio MAC: 70:79:b3:c7:79:00 and Radio Type: 802.11a New Tx Power is: 1 , Reason: DTPC
23	Tue Apr 2 10:42:30 2019	RF Manager updated TxPower for AP AP-1-D Base Radio MAC: 70:ea:1a:e4:b2:a0 and Radio Type: 802.11a New Tx Power is: 1 , Reason: DTPC
24	Tue Apr 2 10:42:04 2019	Rogue client: 1c:4d:70:d2:0d:66 is detected by 1 APs Rogue Client Bssid: 00:1a:8c:85:5e:01, State: Alert, Last detecting AP :70:ea:1a:e4:c1:20 Rogue Client gateway mac 00:00:00:00:00:00.
25	Tue Apr 2 10:41:59 2019	Rogue AP : 00:25:42:80:b6:1f removed from Base Radio MAC : 00:ee:ab:0a:7b:00 Interface no:0(802.11b/g)
26	Tue Apr 2 10:41:59 2019	Rogue AP : 00:25:42:80:b6:1f removed from Base Radio MAC : 70:ea:1a:e4:c1:20 Interface no:0(802.11b/g)
27	Tue Apr 2 10:41:59 2019	Rogue AP : 00:25:42:80:b6:1f removed from Base Radio MAC : 70:ea:1a:e4:b2:a0 Interface no:0(802.11b/g)
28	Tue Apr 2 10:41:54 2019	Rogue client: 70:70:0d:55:f9:b0 is detected by 1 APs Rogue Client Bssid: 00:1a:8c:09:fd:f1, State: Alert, Last detecting AP :70:79:b3:ef:99:e0 Rogue Client gateway mac 00:00:00:00:00:00.
29	Tue Apr 2 10:41:44 2019	Rogue AP: f0:9f:c2:6a:12:1f detected on Base Radio MAC: 70:79:b3:ef:99:e0 Interface no: 0(802.11b/g) Channel: 11 RSSI: -72 SNR: 14 Classification: unclassified, State: Alert, RuleClassified : N, Severity Score: 0, RuleName: N.A. ,Classified AP MAC: 00:00:00:00:00:00 ,Classified RSSI: 0
30	Tue Apr 2 10:41:22 2019	Rogue AP: f0:9f:c2:6a:12:1e detected on Base Radio MAC: 70:79:b3:ef:99:e0 Interface no: 1(802.11a) Channel: 40 RSSI: -74 SNR: 10 Classification: unclassified, State: Alert, RuleClassified : N, Severity Score: 0, RuleName: N.A. ,Classified AP MAC: 00:00:00:00:00:00 ,Classified RSSI: 0
31	Tue Apr 2 10:41:14 2019	Rogue AP: f2:81:7a:74:8c:bf detected on Base Radio MAC: 00:ee:ab:0a:61:60 Interface no: 0(802.11b/g) Channel: 11 RSSI: -78 SNR: 6 Classification: unclassified, State: Alert, RuleClassified : N, Severity Score: 0, RuleName: N.A. ,Classified AP MAC: 00:00:00:00:00:00 ,Classified RSSI: 0
32	Tue Apr 2 10:41:07 2019	Rogue AP: f2:9f:c2:6a:12:1e detected on Base Radio MAC: 70:79:b3:ef:99:e0 Interface no: 1(802.11a) Channel: 40 RSSI: -74 SNR: 10 Classification: unclassified, State: Alert, RuleClassified : N, Severity Score: 0, RuleName: N.A. ,Classified AP MAC: 00:00:00:00:00:00 ,Classified RSSI: 0

Any suggestion would be greatly appreciated , thanks !

Re: Client disconnect from the AP randomly

Leo Laohoo — Tue, 02 Apr 2019 09:14:22 GMT

@Solanin19 wrote:

the ap disconnect randomly

What is the uptime of this AP that keeps on randomly disconnecting?

Re: Client disconnect from the AP randomly

patoberli — Tue, 02 Apr 2019 09:21:27 GMT

Check the switch the AP is attached to. Do you see the port going down/up when this happens? This would indicate the AP is crashing and rebooting.
What software release are you running on the WLC and what type of AP?

Which is the MAC address of the affected AP (wireless interface and wired interface)?

Re: Client disconnect from the AP randomly

Solanin19 — Tue, 02 Apr 2019 13:39:42 GMT

Hi,

The base radio mac of the ap is: 70:ea:1a:e4:c1:20
The type is AIR-AP1815W-E-K9

Software version: 8.5.131.0

I don't know about the down/up, because i don't have the time to stay near the switch when it's happening. The uptime can be 10min, 7 hours, etc, it's realy random.

what i tried so far:

- Change Switch and port
- swap with a ap that don't have a problem

Re: Client disconnect from the AP randomly

patoberli — Tue, 02 Apr 2019 14:43:48 GMT

The uptime does vary, that is a sign that it reboots. I would suspect a cable issue, or not enough PoE from the switch, if a second AP has the same issue at that exact location.

Re: Client disconnect from the AP randomly

Leo Laohoo — Wed, 03 Apr 2019 05:50:24 GMT

8.5.131.0?
Do the APs have dual-band radios? If they do, what happens if you disable the dual-band radios. Does this stop the APs from rebooting?

Re: Client disconnect from the AP randomly

viraj.kavinda19951 — Thu, 27 Feb 2020 12:15:42 GMT

How to get ap uptime

Re: Client disconnect from the AP randomly

patoberli — Mon, 02 Mar 2020 10:13:09 GMT

show ap uptime

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Client disconnect from the AP randomly

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Re: Client disconnect from the AP randomly