unable to login on DNAC web interface

[ezzaariyouness]

Hi everyone ,

I'm unable to login in into dnac web interface , the password correct . I got Invalid Login Credentials.

DNA version: DNAC-SW-2.2.3.5

can anyone help me fix this

[Flavio Miranda]

Hi

 Can you access it using SSH at least?

[ezzaariyouness]

it's admin , I can't access with it using SSH , I can only with maglev

[Flavio Miranda]

Alright, that good. 

  And the access is local or do you use tacacs? 

[ezzaariyouness]

Hi Flavio ;

the access is  local .

[Flavio Miranda]

Access with maglev and type

magctl user password update admin TNT0

[ezzaariyouness]

Hi Flavio ,

I did update the password but I still not able to login .

[Flavio Miranda]

Try to use different browser, clean up browser cooks,  password,  etc

Reload the dnac

[ezzaariyouness]

Hi Flavio ,

Yes did try other browser, the same .

[sandshiv]

@Flavio Miranda : Thanks a lot for posting! This solution perfectly worked This has unblocked our long awaiting problem.

Working snip:
root@maglev-master-:~# maglev login -k -u admin
[administration] password for 'admin':
ERROR: Invalid username and/or password.
root@maglev-master-:~# magctl rbac external_auth_fallback display
{
"response": {
"enabled": false
}
}
root@maglev-master-:~# magctl user password update admin TNT0
Password:
Confirm password:
Password updated successfully.
root@maglev-master-:~#

After this tried the same password input as in above.

[edust]

Being unable to open the Web UI to the Cisco DNA Center can be several different problems.
The best thing to do in this instance is to open a TAC case and let TAC look at it. However, you can check, from the CLI:

maglev login -k -u admin
(This will ask for your "admin" password, if it is successful login to the GUI again. It should work, if the error returns as

ERROR: Invalid username and/or password)

Then run the command:

magctl rbac external_auth_fallback display

If this returns as false, this is the issue. If it returns as true, you will need to open a TAC case as there maybe be a context issue or internal certificate problem.

[ezzaariyouness]

Hi edust ,

I try maglev login -k -u admin it's successful login but formagctl rbac external_auth_fallback display it's  returns as false .

How can I fix this .

[edust · Accepted solution]

If you were able to use the first command, maglev login -k -u admin, and it worked, use a different browser or clear your browser cache as mentioned above, if that does not work you will need to open a case with Cisco TAC.

[ezzaariyouness]

Hi edust ;

I did open a case with TAC , they did solve the issue .

Thx

Best regards

Younes

[frans.smit1]

Hi Youness,
Do you know what TAC did? I am running into the same issue. 

Regards.