topic Fusion 360 browser sign in failure in Fusion Support Forum

Fusion 360 browser sign in failure

matejsazama — Thu, 13 Apr 2023 23:20:19 GMT

Hi,

I have a problem with logging into Fusion:

When I start the program it takes me to the web sign in prompt, but when I click on "sign-in" the browser doesn't open and the Identity manager reports a crash.

I've tried restarting Fusion and my PC, repairing/reinstalling fusion, changing my default browser to edge, and updating the AdSSO component.

The problem remained unchanged through all of this and I don't know what else to do.

Any help is appreciated.

Thank you very much.

Re: Fusion 360 browser sign in failure

RajkumarIlanchelian — Thu, 13 Apr 2023 23:31:35 GMT

@matejsazama Can you confirm if you have any other Autodesk products on your machine? There are a couple of other thing we can check on but would like to know if there are other products installed.

Re: Fusion 360 browser sign in failure

RajkumarIlanchelian — Fri, 14 Apr 2023 00:43:09 GMT

Can you also please send us your log files?

1. launch Fusion and while it is launching click on Ctrl+Shift (Window) CMD+Shift (Mac)
2. This will launch the Fusion service utility

3. Gather log files

Please attach the zip file that is generated.

Re: Fusion 360 browser sign in failure

matejsazama — Fri, 14 Apr 2023 08:55:15 GMT

The log files are attached.

Also: I don't have any other Autodesk product on my machine.

One more thing: When the Identity Manager crashes, it reports this error: Access violation - code c0000005 (first/second chance not available)

Re: Fusion 360 browser sign in failure

matejsazama — Thu, 04 May 2023 12:30:53 GMT

Update: I finally caved and factory reset my PC. Afterwards everything worked fine. I don't know if there was some errors in the registry or settings, but hey, it's fixed.

Re: Fusion 360 browser sign in failure

nick_cooper99 — Wed, 17 May 2023 05:23:13 GMT

When this happens to me I just reinstall Autodesk identity manager and it usually solves the problem. Sometimes it is required to uninstall existing instance version first. This problem crops up far too often tho.

Re: Fusion 360 browser sign in failure

chiduc80 — Sun, 27 Aug 2023 09:23:55 GMT

new install fusion 360, but can't sign-in

Re: Fusion 360 browser sign in failure

RajkumarIlanchelian — Sun, 27 Aug 2023 14:32:55 GMT

@chiduc80 What other Autodesk products do you have on your machine?

Re: Fusion 360 browser sign in failure

mshuler1 — Mon, 13 Jan 2025 01:19:18 GMT

I am having this same issue. I Load the software it directs me to the browser to sign in. After signing in im directed back to the software and i get a sign in failure message

Re: Fusion 360 browser sign in failure

RajkumarIlanchelian — Mon, 13 Jan 2025 01:49:35 GMT

@mshuler1 @Can you please send me a direct message with the email used to register Fusion?

Re: Fusion 360 browser sign in failure

amir_m912 — Tue, 07 Oct 2025 14:52:34 GMT

I am having this same issue. I Load the software, press sign in it doesnt forwards me to browser.

i re installed and still same issue

Re: Fusion 360 browser sign in failure

RajkumarIlanchelian — Tue, 07 Oct 2025 15:04:43 GMT

@amir_m912 Please follow this article https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/Sign-in-in-Fusion-360-does-not-open-a-browser-pop-to-complete-the-sign-in-procedure.html

Especially try the

Backup and remove Debugger Blocked subkeys on Windows

Note: The following should be performed by an IT administrator as improperly removing folders/files or editing the Windows registry can cause computer operating system issues.

Open the Registry Editor in Windows.
Search [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options].
Backup all the Debugger -> Blocked subkeys.
Then remove all the Debugger ->Blocked subkeys.
Once done, it is possible to Sign In and Fusion could start correctly.