I had a problem and after some research I discovered the exactly point where is failing.
Is not working, it says that the page cannot be found (404)
Working as expected
If you click on Home, it will says that the page cannot be found, if you try to preview a new post, it says that the page cannot be found... I can see every post btw.
I run my blog on a Windows hosting using IIS.
my permalink is this:
IIRC I had to use index.php because my IIS doesn't have URL rewriting.
I have no problem with the index.php thing on the url, I have now a good SEO and I don't want to change my permalink but I Don't know why is not working now... just from one day to the next...
It's a problem of WP or is just my host messing up? If is my blog, do you know what is causing this? (Just for create a concrete ticket about the exactly problem)