[arm-allstar] Outbound connection problem

[Chris Zenchenko]

I'm looking for help solving my latest connection problem.
I again suspect the ISP but don't know where to start.
I can connect to a node and get solid two way connections.
However after several hours the inbound works but my outbound does not.
I get the two tone courtesy tone as if I were transmitting audio but the
connected node does not key up.
At my current log level no errors are showing.
If I disconnect and reconnect two way again works.

Please note that other than the port changes at allstar.org and my local
conf files I have not changed any other configuration files for months.
My node shows registered with the show registry command.
The check_reg.sh is reporting my node registered.
Node - 41822 at IP address 99.72.244.221:4569 is Registered
 DNS lookup returns - +OK|radio at 99.72.244.221:4559/41822,99.72.244.221

Because this node has been perking along for quite some time I am at a loss
to explain the constant problems over the past month since changing ISP
service. The change should have been minor as I went from a old DSL line
from AT&T to their newer network, still DSL and not their true high speed.
No fiber out here.
I did not change my router nor any of it's firewall or port settings.
I have put the AT&T gateway in DMZ+ mode.
Pinging from the node machine is working fine so DNS look-ups are not
failing.
Node is on a static IP.
My public IP seems to be the same since the change in network.