System block UDP port

Hi all,
I have some problem with UDP port.
Astaro block them also if I did a specific rule to permit for example hostX-->(service with UDP port from/to 10000:50000)-->any (or external address)

I get from firewall log:
12:19:11 Default DROP UDP XX.18.194.*** : 4377→ XX.37.54.XX:5060 len=625 ttl=45 tos=0x00 srcmac=0:xx:33:90:95:xx dstmac=0:xx:2x:x:x:xx


I also disabled UDP flood protection under Intrusion Prevention.

Any idea
Alex