mod_rewrite behaving differently on different apache servers. What to do?

As part of SEO optimization, I use this code in my .htaccess file :

RewriteEngine On
RewriteRule ^some/(.*)/(.*).html$ some.php?&reqa=$1&reqb=$2

Code (markup):

This code should rewrite this link:

some/valuea/valueb.html

into this:

some.php?&reqa=valuea&reqb=valueb

I tried this on several apache servers. On some it works perfectly. On some it doesn't work at all. And on some it rewrites first part of the link, but not query string (part after ? ) . How to configure Apache for this to work? Should I change something in Apache config file? Is there another piece of code that does the same thing, but more consistently?

Thanks for reading this

 

try this:

RewriteRule ^some\/(.*)/(.*)\.html$ some.php?&reqa=$1&reqb=$2

This should be compliant with all Apache installations