Web Policy -> Allowed Network ->IP RANGE - Not working

It works, but you may not understand how filter profiles, policies, and filter actions work together.  Uou have not said whether you have an u wanted allow or unwanted block.

Is traffic going through the web proxy or through the firewall rules?  If proxy, is user authenticated or not?     Which Filter Orofile and Policy is selected?  All of these answers are in the logs.  You meed to study them.

It works, but you may not understand how filter profiles, policies, and filter actions work together.  Uou have not said whether you have an u wanted allow or unwanted block.

Is traffic going through the web proxy or through the firewall rules?  If proxy, is user authenticated or not?     Which Filter Orofile and Policy is selected?  All of these answers are in the logs.  You meed to study them.

Under Transparent and standard mode
If you are using IP range under Web Filter Profile, you cant drag the IP range into allowed network. 

then 

If you create another Network Group and Add the IP range then drag it to allowed network under Web filter Profile these will be the errors

Web Protection → Web Filter Profiles → Filter Profiles:
Proxy profile sources are missing. Continuing will disable this proxy profile.

Web Protection → Web Filter Profiles → Filter Profiles:
Removing 1 invalid element(s) 'REF_NetGroTestgroupr' from the list.

Web Protection → Web Filter Profiles → Filter Profiles:
The web filtering profile object cannot use range objects for the allowed network list attribute.

Can you help me with this problem?
Thank you

What is the definition of the "REF_NetGroTestgroupr" object that it doesn't like?  have you tried dragging other network objects and noticed that they do not generate an error?

Network Range definitions are relatively new, Kunkka, so I try to avoid them.  Range definitions are not supported in Web Filtering.  There might be a feature request in Ideas that you could vote for.

Cheers - Bob