coordinator not to allow joins

i am running zigbee 3.05 and I have terminal opened to my coordinator. I want to tell the coordinator not to allow any additional joins.
I set s00 to 0000 using ats00=0000
I verify register 00 is set to 0000 with at+tokdump
how do I get the pan to restart, because at+panscan always shows the last data element as 01 which is allow joining.
even after unplugging the dongle and plugging it back in.

thanks

Those commands do not look familiar, is this a Digi product?