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WAP321 Hangs

Maritn.Egli
Level 1
Level 1

Hello

I have a WAP321. The unit hangs about on every day. Web interface and WLAN let not respond anymore. By a reset the unit will be back. I have put all unnecessary stale. Tracing the turned on, I can say nothing flashy.

Martin

20 Replies 20

Clayton Sill
Level 1
Level 1

Hello Martin,

     I checked out the text file you sent and I am not seeing any errors and your ip address looks correct and I see that you are also on the latest firmware. Have you always been having this issue? How long has the issue been happening? When you are not able to access the web interface and not get anything on the wireless are you able to ping the WAP321? If all else fails you may want to do a factory reset of your unit and reconfigure specially if you recently did a firmware upgrade. Something could have gotten corrupted in the firmware upgrade.

Hope that helps,

Thanks,

Clayton Sill

pwambachSH
Level 1
Level 1

I am having a similar issue with a WAP 321.  My end users are complaining that it drops out at least once a day.  Let me know if you have a fix. My end users power cycle it everyday.

kubaszumarski
Level 1
Level 1

I have also same issue.. two AP's WAP321. They are going to hang up (or sleep) once a day (power led is solid amber, and WiFi and ethernet leds are blinking green) , can't ping or connect via https or ssh, SSID's are propagated, but when you want to connect, there is an connect error). At the morning (at work) I have to restart power. They hold saved configuration, so everything after restart is going back normal. These APs are connected on PoE. I have upgreaded from 1.0.1.10 to 1.0.2.3 - it nothing changed - APs still hangs. In my opinion there is something with power saving and going to sleep mode. Today I'm gonna to turn off auto negotiate (it will be 100Mb). Maybe 4 wires for data and 4 wires for PoE could change something.

mandjacobs
Level 1
Level 1

I am experiencing what seems to be the same issue. I have a total of 8 POE-enabled WAP321 devices set up in 2 clusters: 6 for 5Ghz and 2 for legacy 2.4Ghz, with different SSIDs. After several days, all 8 are completely unresponsive and I have to reboot them. All are running the same firmware. The POE switch is well under capacity, so the issue doesn't appear to be in the switch.

The only suspicious activity I see in the diagnostics file is as follows:

crashdump1:

Software Version: C.8.18.2

Crash Log:

Uptime of the AP: 0 Days, 0 Hours, 0 Minutes and 17 Seconds

do_page_fault() #2: sending SIGSEGV to process - dman

epc == 2aca00a0, ra == 2adc79e0

Current frame at 0x7F8976E8, size 0 bytes, retaddr offset 32 bytes

PC = 0x438f34

At code addr 0x00438064 the code 0x203D2073 alters SP, but had not yet found frame size. Giving up.

Memory is also a bit tight, but the situation doesn't seem dire:

Top:

Mem: 55936K used, 5592K free, 0K shrd, 4772K buff, 19320K cached

CPU:   0% usr   9% sys   0% nic  90% idle   0% io   0% irq   0% sirq

Load average: 3.02 3.02 3.00 1/35 1347

  PID  PPID USER     STAT   VSZ %MEM CPU %CPU COMMAND

1347  1333 root     R <   1808   3%   0   9% top -n 1 -b

1118   874 root     S <  11416  19%   0   0% /usr/sbin/clusterd -n iaccc -c CIS

  874     1 root     S <  11092  18%   0   0% /usr/sbin/dman

1105   874 root     S <   5528   9%   0   0% /usr/bin/mini_httpd-ssl -S -E /etc

1331  1330 root     S <   5484   9%   0   0% /usr/bin/mini_httpd-ssl -D -p1 80

1104   874 root     S <   5480   9%   0   0% /usr/bin/mini_httpd-ssl -D -p1 80

  801     1 root     S <   4664   8%   0   0% /usr/sbin/tspec

1110   874 root     S <   2612   4%   0   0% /usr/sbin/hostapd /tmp/hostapd.con

1330  1104 root     S <   2468   4%   0   0% download.cgi diag-log

    1     0 root     S <   1812   3%   0   0% init

1084   874 root     S <   1812   3%   0   0% /sbin/getty -L 115200 ttyS0

1332  1330 root     S <   1808   3%   0   0% sh -c sh /sbin/show_diagnostics.sh

1333  1332 root     S <   1804   3%   0   0% sh /sbin/show_diagnostics.sh

  787     1 root     S <   1800   3%   0   0% insmod /lib/modules/2.6.21.5/extra

  756     1 root     S <   1800   3%   0   0% insmod /lib/modules/2.6.21.5/extra

  725     1 root     D <   1800   3%   0   0% insmod /lib/modules/2.6.21.5/extra

  772     1 root     D <   1800   3%   0   0% insmod /lib/modules/2.6.21.5/extra

  724     1 root     D <   1800   3%   0   0% insmod /lib/modules/2.6.21.5/extra

1077   874 root     S <   1008   2%   0   0% /usr/sbin/sntp -s 3600 0 172.16.19

1079   874 root     S <    848   1%   0   0% /sbin/dhcp6c brtrunk 0 /usr/share/

1078   874 root     S <    668   1%   0   0% /usr/sbin/syslogd

  886   874 root     S <    660   1%   0   0% /usr/bin/eapd

  672     1 root     SW<      0   0%   0   0% [mtdblockd]

    3     1 root     SW<      0   0%   0   0% [events/0]

    4     1 root     SW<      0   0%   0   0% [khelper]

   50     5 root     SW       0   0%   0   0% [pdflush]

   52     5 root     SW<      0   0%   0   0% [aio/0]

   51     5 root     SW<      0   0%   0   0% [kswapd0]

    2     1 root     SWN      0   0%   0   0% [ksoftirqd/0]

   53     5 root     SW<      0   0%   0   0% [unionfs_siod/0]

  702     1 root     SWN      0   0%   0   0% [jffs2_gcd_mtd2]

   20     5 root     SW<      0   0%   0   0% [kblockd/0]

   21     5 root     SW<      0   0%   0   0% [kseriod]

   49     5 root     SW       0   0%   0   0% [pdflush]

    5     1 root     SW<      0   0%   0   0% [kthread]

Hello Michael,

We would like to investgate the crash issue further. Can you please reach out to SBSC and open a service request? Please provide a copy of the WAP configuration and the crash log to the SBSC Engineer so we can investigate the root cause for the crash.

Thanks,

Nagaraja

Hey, Nagaraja... Any news on this problem?

Hi guys, thanks for using our forum, my name is Johnnatan and I am part of the Small business Support community. As Clayton said, it is a good idea perform a factory reset after you do the firmware upgrade, however if this doesn´t fix your problem, can you please reach out to our Small Business Support Center and open a Service Request to address this issue? One of our Engineers may be able to work with you and diagnose the root cause. You can find the appropriate contact information for SBSC in the below link.

http://www.cisco.com/en/US/support/tsd_cisco_small_business_support_center_contacts.html

I hope you find this answer useful,

*Please mark the question as Answered or rate it so other users can benefit from it"

Greetings

Johnnatan Rodriguez Miranda.

Cisco Network Support Engineer.

“Please rate useful posts so other users can benefit from it” Greetings, Johnnatan Rodriguez Miranda. Cisco Network Support Engineer.

pwambachSH
Level 1
Level 1

It happened again today. The ap was accessible but performance was horrible. The only fix is to reboot it and I don't know how long that fixes it for.

Sent from Cisco Technical Support iPhone App

Hello Patrick,

What kind of switch you are using to connect to the WAP? Also, when you say the performance was horrible, were you referring to traffic to internet or intranet? Can you verify if the connection between the wireless clients is also affected when you are seeing bad performance through the AP? If not done already, please open a case with Cisco SBSC so we can investigate this issue further.

Thanks,

Nagaraja

pwambachSH
Level 1
Level 1

I just noticed that one of the ap's wireless light was blinking. In the logs it showed clustering applying received configuration every 4 seconds. I disabled clustering and the access point became available and functional.

Sent from Cisco Technical Support iPhone App

Nagaraja Thanthry
Cisco Employee
Cisco Employee

Hello Martin,

Do you have any energy saving features enabled on the POE switch? Does the AP becomes unresponsive after a period of inactivity through wireless interface?

Thanks,

Nagaraja

kubaszumarski
Level 1
Level 1

Well,

from 3 days my APs still working (not hang for sec.) , (ping is responding,i can manage via https, ssids are working). In my case there was one thing that I changed, I turn on (in VLAN and IPv4 Address section), Untagged Vlan to Enable, and leave 1 VLAN ID as default Untagged Vlan ID.

This is a solution that has helped in my case. 

I'm experiencing the same problem. Jakub's workaround appears to have resolved the issue for me too (I enabled untagged VLAN, set the untagged VLAN as my management VLAN and set the native VLAN on the port to be the management VLAN too). At least, the issue hasn't re-occurred in 24 hours when it was happening every 4 or 5 hours previously

I'm gonna raise a support case though as this must be a bug. ie no reason you shouldn't be able to set it up the way I had it

PS I'm using a 3750 switch

Did a Quick Lab on this issue as follows…

Switch (SG300-28): L3 Mode

VLAN1 -192.168.1.254 /24

VLAN2 – 192.168.2.254 /24

WAP321 connected Switch Port GE3 (Trunk) – 2UP,1T (VLAN2 – Untagged traffic, VLAN1 – Tagged Traffic)

WAP321 configuration is as follows:

Now connected my PC (via wireless) on the SSID “ciscosb” (VLAN1) and “ciscotest” (VLAN2) respectively with the IP settings on the PC wireless card as fallows…

                               ciscosb                                                                          ciscotest

                     IP: 192.168.1.200 /24                                                     IP: 192.168.2.200 /24

                       GW: 192.168.1.254                                                          GW: 192.168.2.254

In both the above cases I’m able to ping the Switch SVI’s and WAP321 IP.

So please check the settings on the Switch port, if the VLAN traffic is untagged on the WAP321 then on the Switch port it should be untagged and if the VLAN traffic is tagged on the WAP321 then on the Switch port it should tagged for the respective VLANs.

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