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New Member

laptops can't connected to wifi

hi,I have a problem with my WLC2100 same client disconnected and can't get an address from dhcp actually I have tow SSID withe 2 pools when this problem happened switched client to the second SSID and then they connect immediately.i have a external DHCP server and my contrelleur is proxy 

20 REPLIES
Bronze

Hi, Have you considered that

Hi,

 

Have you considered that it may be as simple as an issue with the credentials you are providing for the first SSID? Or an issue with the config of the SSID/mapped interface at the WLC, and finally is the vlan for the first SSID permitted on the trunk between the switch and the WLC?

 

You could check the controller logs to see what is going on, or do a debug client <mac> at the controller CLI for real detail.

 

very best wishes

 

Mike

Bronze

Hi, It just occurred to me -

Hi,

 

It just occurred to me - my post above is designed to troubleshoot client association with the AP, it does not troubleshoot the dhcp issue, which you mention you had configured as working for the second SSID.

 

HTH

 

Mike

New Member

thank's for your answers so I

thank's for your answers so I had already 204 users connected between the two SSID but same clients disconnected from first SSID and can't connect after, it's ok for Trunking between WLC and myswitch and interface with VLAN's also I check my server dhcp pool for the first SSID and there is more free addresses and I checked the numbers for clients connected for each AP not more 25 clients

Bronze

So - is it a particular

So - is it a particular client operating system which is a problem?

Have you considered running wireshark on one of the client devices which is having difficulty associating?

Also what does the output of the debug on the WLC give us?

 

Best wishes

 

Mike

 

Hall of Fame Super Silver

If your switching between

If your switching between ssid's that are known to be working fine, you need to make sure that fast ssid change is enabled on the WLC General tab.

-Scott
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New Member

can you please Explain more ?

can you please Explain more ?

Hall of Fame Super Silver

First off, can you screen

First off, can you screen shot from the GUI the Controller tab.  Then do you have telnet/ssh or console access to the WLC, if so, can you post the show wlan <this is your wlan id number>

-Scott
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New Member

this list of logs that i have

this list of logs that i have in my WLC

Decrypt errors occurred for client 1c:74:da:a6:ad:12 using WPA2 key on 802.11b/g interface of AP 00:3a:92:7c:90:cc

Decrypt errors occurred for client 10:0b:a3:4f:55:ee using WPA2 key on 802.11b/g interface of AP 00:3a:92:7c:90:cc

Interference Profile Failed for Base Radio MAC: 00:3a:98:7c:b3:70 and slotNo: 0

Rogue AP : 00:3a:99:7c:ba:a1 removed from Base Radio MAC : 00:3a:92:7c:90:cc Interface no:0(802.11b/g)

Coverage hole pre alarm for client[1] 60:67:20:7c:84:38 on 802.11b/g interface of AP 00:3a:98:7c:93:c0 (Etg03_AP10). Hist: 0 0 0 1 0 4 14 20 17 7 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Channel changed for Base Radio MAC: 00:3a:98:78:60:00 on 802.11b/g radio. Old Channel: 6. New Channel: 11. Why: Interference. Energy before/after change: -69/-80. Noise before/after change: -80/-81. Interference before/after change: -69/-89.

Channel changed for Base Radio MAC: 00:3a:98:78:60:d0 on 802.11b/g radio. Old Channel: 11. New Channel: 6. Why: Interference. Energy before/after change: -59/-76. Noise before/after change: -78/-80. Interference before/after change: -59/-78.

Hall of Fame Super Silver

You should also post your

You should also post your show wlan <wlan id>

-Scott
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New Member

Unfortunately i can just

Unfortunately i can just access with GIU to the conttroleur 

 

Hall of Fame Super Silver

Well then post a screen shot

Well then post a screen shot of the Controller tab and also screen shot of the WLAN's in question.

-Scott
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New Member

HiPlease find attached thank

Hi

Please find attached thank you for your help 

Hall of Fame Super Silver

I didn't see the screen shot

I didn't see the screen shot for the main page of the WLC General tab:

http://www.cisco.com/c/en/us/td/docs/wireless/controller/6-0/configuration/guide/Controller60CG/c60ccfg.html#wp1890039

Post a screen show of your SSID settings, not the interfaces.

-Scott
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New Member

ok 

ok 

Hall of Fame Super Silver

First off, make sure Fast

First off, make sure Fast SSID Change is enabled from the link on the other post.  Then screen shot the SSID Security tab.... that's what I need to see

-Scott
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New Member

yes Fast ssid change is

yes Fast ssid change is enabled ,

Hall of Fame Super Silver

Well if fast ssid change is

Well if fast ssid change is enabled and it also looks like your ssid if fine also, then you need to look at your client.  Try to determine if its all clients or just a handful.  The code your running is old and if you don't have smartnet, then you will not be able to download code.  Check the configuration on the users devices and driver versions.

-Scott
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New Member

HI,yes it's juste for some

HI,

yes it's juste for some clients not all,i want to know if i must installe the last update for NIC cards version available 

 

Bronze

Hi,Just as a matter of

Hi,

Just as a matter of interest, do you have any other lan controllers on your network along with this one?

Best wishes

Mike

New Member

HI,  yes is it a particular

HI, 

 juste have one WLC in my network 

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