I run Allstar/Echolink on Rasberry Pi, Current version - RPi2-3 Asterisk 1.4.23-pre.hamvoip-V1.5.3-54-app_rpt-0.327-04/28/2019. I am unable to connect to any Allstar node outside of my own 48948/ 48949/49465. I'm not sure when the problem started since, I generally only connect to myself via Supermon on DV-Switch (IAXRPT). I have connected to nodes in the last month or so. so it is fairly recent. It has been working fine, I didn't change anything other than running an update today (ain't broke..) which did not correct the problem.. I checked everything I can think of. Router ports forwarded (I did get a new router a couple of months ago). Since I can connect to my own nodes, but none outside, I suspected that, but all seems in order. Echolink is on the same server and works fine..