@darkhobby5 It’s certainly acting very strangely - ended up having to get another ata as thought the first was bad as every time it was connected to the vlan with internet on it the thing changed its password but not to to one given by the VoIP supplier to use after provision. Which means you can’t look and see what’s going on on the ata cos you can’t get in and reset just clears it. Insurrections from the VoIP supplier is just to open a bunch of ip addresses and port 5080 and udp The second one I got set it’self to the VoIP provider s password but nothing had been added to any of the fields on it just changed the password (both of them had the MAC address and serial number sent to the provider for provision ) firewall logs show no issues but am guessing it won’t show a NAT issue - I built this system long time ago an have forgotten most of them suff!