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Welcome to Cisco Support Community. We would love to have your feedback.

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New Member

Can't log into the ASDM anymore

I only know how to manage the firewall through the GUI ASDM. now it's not working since last firefox update. I tried other browsers but nothing helps. I get this message in every browser .. Cisco ASDM 5.2 - Error

"Cisco ASDM 5.2 encountered loading errors. If ASDM has informed you about a problem in your setup, please fix the problem and try again."

6 REPLIES
Hall of Fame Super Silver

Are you tring the Java web

Are you tring the Java web start or ASDM launcher method?

In either case, can you try monitoring the Java console when you try to launch and let us know what it reports?

Also tell us abou the certificate on your ASA - is it self-signed and is it SHA1 or SHA2?

You will have to clear the

You will have to clear the java cache. Control panel > java >java tab

New Member

Please be clearer about what

Please be clearer about what you mean because your steps lead me no where but to java Runtime environment settings when I click the java tab in java control panel.

New Member

I'm using the Java web start.

I'm using the Java web start. I don't know what you mean about the certificate I am not a pro with this I'm just trying to administer this firewall. I don't even have a Smartnet contract so I have no help.

The Java console says..

java.security.AccessControlException: access denied ("java.util.PropertyPermission" "*" "read,write")
    at java.security.AccessControlContext.checkPermission(Unknown Source)
    at java.security.AccessController.checkPermission(Unknown Source)
    at java.lang.SecurityManager.checkPermission(Unknown Source)
    at sun.plugin2.applet.AWTAppletSecurityManager.checkPermission(Unknown Source)
    at java.lang.SecurityManager.checkPropertiesAccess(Unknown Source)
    at java.lang.System.getProperties(Unknown Source)
    at com.cisco.nm.dice.loader.Loader.b(DashoA19*..:160)
    at com.cisco.nm.dice.loader.Loader.init(DashoA19*..:143)
    at com.sun.deploy.uitoolkit.impl.awt.AWTAppletAdapter.init(Unknown Source)
    at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

New Member

Is there anyone that can help

Is there anyone that can help on this?

Hall of Fame Super Silver

These sort of problems are 99

These sort of problems are 99% of the time client side Java issues. This guide has the steps to check some of the more common ones:

http://www.cisco.com/c/en/us/support/docs/security/adaptive-security-device-manager/116403-configure-asdm-00.html#anc11

Also, recently some folks have been seeing it help to ensre that the "Use SSL 2.0.." box is unchecked in the Java control Panel as follows:

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