Hi Tony!
I actually tried that with my Sangoma A200 when I saw that it fixed thing for him and knowing some initialization of the Wanpipe drivers is done by fwconsole. I was hoping it would fix my slow boot (caused by the wanrouter service running before the network service is up) and causing a timeout. It definitely booted a lot faster things didn't work...
Unfortunately something doesn't get initialized properly DAHDI-wise (I think).
The problem when I put wanrouter off is essentially like the one I described here:
I also had a few error message popup when I remoted my system using SSH... Nothing which seemed critical and the two I saw appeared only once but still...
Fortunately chaser doesn't seem to have that problem...
Have a nice day!
Nick