TYPO3 Core

I don't have a system to test it, but I assume that the human readable URLs for the backend cause your problem:

https://docs.typo3.org/c/typo3/cms-core/master/en-us/Changelog/11.0/Breaking-93048-BackendURLRewrites.html

Is the Apache/htaccess-configuration as well as mod_rewrite active?

Danilo Caccialanza wrote:

I'm trying TYPO3 11.0.0 in windows OS environment, WAMP, Apache, PHP 7.4.

After a valid login the message appears:

Page Not Found "The page did not exist or was inaccessible. Reason: The requested page does not exist"

I can't find more information anywhere in the logs.

Can anyone developing with windows 10 OS confirm?

I seem to see the same issue on my Linux Setup with Apache. I followed the Docs at https://docs.typo3.org/m/typo3/guide-installation/10.4/en-us/QuickInstall/GetAndUnpack/Index.html (replacing the version numbers where necessary)

Also I tested the Installation with typo3-console (https://github.com/TYPO3-Console/TYPO3-Console) that got to the same result.

In both cases I didn't add/modify any htaccess files.

After retesting both cases extensively (and agressively deleting server/client caches) I was able to fix the issue in my setup with the info from Hannes's link.