phone can't connect wifi

[marco6039291]

hi all,

I get 2 WLC and serveral AP

here is the info

WLC: AIR-CT2504-35K9

AP: AIR-CAP26021TK9

here is the problem,

I set the WLC and upload the config , can ping the wlc and in the gui "wireless"can see ap 

PC can get the wifi but the cellphone get the wifi about 3 mins and it will lose connect until off wifi and reconnect again ( but still will happen in 3 mins ) 

both apple and  android have this issue 

how can i fix it?

thanks for help 

[ammahend]

does this happen, when these phones roam, or this happens even if they are still at one location ?

Is this a new deployment or existing ?

when was the issue first seen ?

any change in network before you started experiencing this issue ?

whats the controller code ?

collect upload debug client <mac address>  (try to capture, client disconnect and re connection)

take any one iphone and one android mac address and upload this output.

[marco6039291]

hi ammahend

These device all are in one location

and these wlc is exist not the new one

originaaly, there are two wlc (called wlc01 and wlc02)

then client said wlc01 failed so i set the backup (called backup01)

and everything is work

when wlc01 RMA back , download config back and set back 

in that day everything is work

but after 2 days , client responded that they cant connect WIFI with phone but pc can use wifi 
so replace back backup01 but still cant solved it

here is some log

thank  u for ur help 

[ammahend]

This is not complete debug however on error

Source member:0.0.0.0. source member unknown.

refer to this blog, this might help.

https://supportforums.cisco.com/discussion/11075731/error-logs-wlc

If possible, do a complete capture - turn both devices off, start debug, turn them on, connect to network and keep is connected until they disconnect, connect them again.

**rate helpful posts**

[marco6039291]

hi ammahend

thank u for ur help 

finally found is FW some failover command lost 

key in back the command then wifi is working 

thank u again