Hi Folks:

I am trying to restart a hub node (on a Pi3B).  I am seeing the following errors when manually starting asterisk (asterisk -cvvvv):

<snip>

[Feb 23 15:16:51] WARNING[1112]: app_rpt.c:22240 rpt_master: rpt_thread restarted on node 2200
[Feb 23 15:16:51] WARNING[1141]: chan_dahdi.c:928 dahdi_open: Unable to open '/dev/dahdi/pseudo': No such file or directory
[Feb 23 15:16:51] ERROR[1141]: chan_dahdi.c:7906 chandup: Unable to dup channel: No such file or directory
rpt:Sorry unable to obtain Rx channel
[Feb 23 15:16:53] ERROR[1112]: app_rpt.c:22223 rpt_master: Continual RPT thread restarts, killing Asterisk

Resolved!

Running "dpkg-reconfigure asl-dahdi-linux-dkms" got it going again!

Ramesh.