Hi @jess,
Many thanks for the reply. I checked those replies and went through them to no avail.
I have tried to change the internal ip range to the proposed one and indeed it worked. The strange thing is that my internal network is 10.0.1.0/24 and I had configured "internal_ip_range = 10.0.1.0-10.0.1.255". So probably it's not using the internal network and going through the public one. Will double check that.
On a side note, what are the valid values for "default_delivery_type" in /opt/kaltura/app/configurations/base.ini? Are the ones in the streamer_type column in the delivery_profile table?
Cheers