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403 Forbidden Access for admin page when TabURLPROVIDER checked.

Sep 22, 2014 at 11:20 PM
Edited Sep 22, 2014 at 11:22 PM
Hi There,

I have a strange problem where when clicking ADMIN in any portal in one DNN installation I get a "403 Forbidden Access" error. The strange thing is all other pages, HOST, TOOLS, all the portal pages work fine.

If I hover over the admin menu and wait for the options to pop up, they all work fine except for SKINS, which gives the same error.

With the "TabUrlProvider" option unchecked the pages are accessible, as soon as the option is checked the Admin and Skin pages are unavailable again.

With "TabUrlProvider" Unchecked the url is :

With "TabUrlProvider" Checked the url is :

When viewing URL rules:

TYPE : Tab
TABID : 317
PARAMETERS : tab=317

This was working, not sure when it broke. Any suggestions would be appreciated.