Do you have any SEF extension installed? Grab and install the K2 development version from getk2.org/assets/get . Let me know if your issue is solved.

i only using the Joomla 3 SEF from global configuration..
made the .htaccess
Use URL rewriting YES
Search Engine Friendly URLs YES
Unicode Aliases YES

you want me to install the DEV version on the site? just install on the older version from extension manager ?

i moved the site to root domain to see if problem solved... but still the download not working...


www.gkb.co.il/%D7%92-%D7%95-%D7%A4%D7%AA%D7%A8%D7%95%D7%A0%D7%95%D7%AA-%D7%90%D7%91%D7%98%D7%97%D7%94/%D7%9E%D7%95%D7%A6%D7%A8%D7%99%D7%9D/%D7%9E%D7%A6%D7%9C%D7%9E%D7%95%D7%AA-%D7%90%D7%A0%D7%9C%D7%95%D7%92%D7%99%D7%95%D7%AA/%D7%9B%D7%99%D7%A4%D7%94/11-%D7%9B%D7%99%D7%A4%D7%94/%D7%9E%D7%A6%D7%9C%D7%9E%D7%AA-%D7%9B%D7%99%D7%A4%D7%94-%D7%93%D7%92%D7%9D-3902-2

Yes you can install the developement version. Don't uninstall first. Uninstalling K2 will delete all your items. Can you also try to download the attachments from the administration area? Is the download working there?

yes its working good from the admin k2 panel

ok i will backup and install the dev version you sent me.

ok the new dev version installed and yet its still not working

but it is working when i turn off the joomla SEF from global configuration
search Engine Friendly URLs NO
Use URL rewriting NO
Adds Suffix to URL NO

www.gkb.co.il/index.php?option=com_k2&view=item&id=79:%D7%9E%D7%A6%D7%9C%D7%9E%D7%AA-%D7%9B%D7%99%D7%A4%D7%94-%D7%93%D7%92%D7%9D-3902-2&Itemid=205

I think this has to do with RTL support in the URLs. Try to enable SEF again and try to set temporarily the alias of the item and the category to latin characters.

ok its working now, i turn on all the joomla SEF options from global configuration and played with the setting of the K2 Advanced SEF Settings

i don't know exactly what i turn on or off but now its working!

i'm attaching image of my k2 Advanced SEF Settings

Glad that you solved. Let me know if you face more issues.

The Problem is in K2 attachment SEF URLs parser and/or generator. If you enable the "Category id and title alias separator", the Download URLs must be yourdomain.com/menu-alias/ID-CATEGORY-ALIAS/download/id_hash (Like www.domain.com/menu-alias/10-category-alias/download/20_9e847hfurh4449589302dd89). But K2 is not generating SEF URL well in this case, it is generating www.domain.com/menu-alias/download/20_9e847hfurh4449589302dd89 (without the id and category alias separator that you enabled in K2 SEF advanced configuration). When you click it, K2 don´t understand the link and throw a 404 error.

I made a workaround code for that, to force append the category id and category alias separator to the URL. You have to include this code in category_file.php and item.php K2 template files (this way we don´t hack K2 core files):