Swicthing from SSID to another trouble

[elblanco_fr]

I have an old trouble :

on my wlc4400 when i want to move from one SSID (PEAP for eg) to another (Guest Open for eg) i have to :
- disconnect from the 1st SSID (no trouble at this stage)
- try to connect to the 2nd SSID ... cancel it (or wait for a long time it will stop)
- try to connect another time to the 2nd SSID .. and now it works

We are using windows client. The trouble is the same with all the cients.

Any idea ?

I'm setting up a new 5500 (Software Version 6.0.188.0 ) and i have a similar trouble (but more important

i wan't to move from the entreprise SSID (PEAP)  to Guest (Open) i have to :
- disconnect from the entreprise SSID (no trouble at this stage)
- try to connect to the Guest SSID ... cancel it (or wait for a long time it will stop)
- try to connect to the Guest SSID ... -> DHCP assignement waiting ... and fail
- try to connect to the Guest SSID .. and now it works

i wan't to move from Guest (Open) to the entreprise SSID (PEAP)  i have to :
- disconnect from Guest SSID (no trouble at this stage)
- try to connect to the entreprise SSID ... cancel it (or wait for a long time it will stop)
- try to connect to the entreprise SSID ... -> Sometimes it works ... sometimes the client display "not connected" very quickly
- try to connect to the entreprise SSID .. and now it works

Any idea ?

Thanks

Philippe

[dancampb · Accepted solution]

Make sure you have Fast SSID change enabled.  The default is disabled and will cause the behavoir you are describing.  It basically puts the client into a holddown if they try to bounce between SSIDs.

[elblanco_fr]

Thanks it's realy better

[craig.eyre]

Philippe,

Just wondering something when you enabled fast ssid change. Are you guest and PEAP ssid's connected to separate virtual interfaces on the wlc, so guest=10.10.10.x and peap=20.20.20.x?

If so, can you tell me if you connect to guest and switch over to peap ssid if you keep the ip from the guest Ssid?

I noticed this in our environment and disabled it for time being as we have different access lists for the 2 networks

Regards

Craig

Sent from Cisco Technical Support iPhone App

[elblanco_fr]

Yes the Guest and the PEAP SSID's Interface are connected to separate virtual interfaces.

i don't have the same behavior yo have. The IP address change when i switch from Guest to PEAP.

The DHCP server is external (Windows) and his address is defined on the interfaces.

LAG is enable