Hello, I am having issues with adding a new site as well.
I have downloaded DNN_Platform_9.2.2.178_Install file from this website and installed it as usual. And it seems that with this version I'm getting an error which I never had before.
On the new website with this install if I go to MANAGE > SITES I enter all the details needed to create another new site and then click on the button to create a new site, the popup comes up saying
'The password values entered do not match'
And I'm just not able to create a new one. Even though the box for 'Assign Current User as Administrator' is checked and I didn't have to type in any password. I tried unticking the box and typing in all login details manually, but that didn't work either!!!
Please help, I have no idea what's going on with it?