When you create an internal hyperlink in your Joomla! content always enter a relative, non-sef URL. A correct example would be:
<a href="/component/content.../?Itemid=134">link</a>
The built-in SEF plugin will then automatically convert this link to SEF Advance.
Note that some editors might override your link. You may want to turn the editor off or view item's HTML code to make sure the link is relative.
The same rule applies when making an internal link in main menu: always use relative, non-sef URL and it will be automatically converted.
By ensuring you are not creating hardcoded static links you gain full control over all links in Joomla. If you later would make a change in your SEF Advance settings all links will follow the new rules and you will not have to worry about any of them being broken.
To find out the non-sef address of the page you want to link to you might want to disable SEF for a moment in your global configurations.