Still having Authentication Failed on author instance

[Xena_bcn]

Since many hours I can't fix the same error as It was asked in 2013 in the link bellow

Can't open  <server>:<port>:4502.

The blank page shows

"Authentication Failed" and the URL would change to:

http://mysite:4502/system/sling/cqform/defaultlogin.html?resource=%2F&$$login$$=%24%24logi n%24%24

https://forums.adobe.com/thread/1063965

Tried every thing:

deleted some directories to make free space

Comment Out Authentication header in dispatcher.any

restarted Apache

restarted Adobe

reinstalled Adobe.

Haven't restarted the server, as it is remote, and I can't reach the IT.

Any help?

[Sham_HC · Accepted solution]

There are couple of reasons. You should go with checking configurations of  com.day.cq.auth.impl.LoginSelectorHandler & org.apache.sling.auth.core.impl.SlingAuthenticator

File a support ticket, organize call with support + IT (to verify aem launchpad healthness) + yourself.

[Opkar_Gill]

You said you "reinstalled Adobe", did you delete your old instance and create a new instance?

[Xena_bcn]

Thank you for your reply. 

The Adobe CQ both instances were working finely until that moment I imported DAM. 

[Xena_bcn]

yes I deleted the whol author folder and unpacked the quickinstall.jar

with java -jar ...... -unpack

the server is Linux

[Opkar_Gill]

How much content did you import?

How did you import the content?

Did the Author instance crash during the DAM content install?

Or did it fail when you restarted?

[smacdonald2008]

This sounds like some sort of bug. I suggest opening a ticket so support can investigate. 

Open a ticket here: 

https://helpx.adobe.com/marketing-cloud/contact-support.html

[Xena_bcn]

finally could contact IT admin people and they will give me a new server with more space. Lets see.

Thank you for replies.

[Xena_bcn]

hi

985Mb

it didn't crush that time, I saw log was ok, even replication activation tree went well

but then there was a pop up saying user password are not correct