WLC 5508 console lockup

[q-le]

Hi,

We have a pair of WLC 5508 and not sure what happen but cannot console to either of them.

All is working fine and and we can manage it by web-page but not by console.

thinking of power-cycle them ?

Any suggestions are much appreciated 

Thanks

Q

[Leo Laohoo]

1.  What is the firmware of the controller? 

2.  If you go to Management > Telnet-SSH what are the options presented for Allow New Telnet Sessions and Allow New SSH sessions?

[q-le]

Hi Leo

1) 8.0.133.0

2 Allow New Telnet sessions = NO

Allow New SSH sessions= YES.

Thanks

Q

[Leo Laohoo]

Silly me.  

I forgot you're having trouble with Serial.  

Management > Serial Port 

Kindly check the settings here are the same with the settings to your computer.

[q-le]

yes, the settings are the same with my laptop.

I do get the prompt but cannot login

[Leo Laohoo]

I do get the prompt but cannot login

Cannot login because the username/password is incorrect or cannot login because the login attempt is not displayed?

5508 has two ways to login using the serial port:  Legacy RJ45 or mini-USB.  Which of the two were used?

[q-le]

the login attempt is not displayed.

ie I get the prompt user: and password and after typing them in - it display the 

prompt user again.

With my user/password I can get it by the Web interface.

I used the Rj45

[Leo Laohoo]

Can you try using the mini-USB?

[q-le]

I already tried the mini-USB and sadly same result.

just tried reboot the second WLC and disconnected both the HA and the connection to the Cores and it worked.

still a bit confusing about how the HA works?

[Leo Laohoo · Accepted solution]

still a bit confusing about how the HA works?

Ahhhh ... I know what this is. 

You cannot console into the secondary controller. 

[q-le]

We also have a WLC 5508 in the DMZ and we cannot login by the Web or Console.

Would power-recycle it help ?

Recently we commission Prime and the consultant was hacking around to get it to work - not sure if this Prime is causing all the trouble here ?

Thanks

Q

[Leo Laohoo]

We also have a WLC 5508 in the DMZ and we cannot login by the Web or Console.

is the DMZ controller in an HA SSO configuration?  If so, then the same rules apply:  Web access and console access can only be achieved on the PRIMARY controller.  I believe SSH access is allowed into the secondary controller.

[q-le]

No, it is stand-alone !