PermitJoin ON and OFF #119
Description
There could be some scenarios where there are ZigBee nodes not yet configured in the JEMMA GUI (so they are part of the network but the user has not configured them yet).
In this case, when the user press "add device" one of this node came straight up for configuration, since they are already in the cache.
However, on the ZigBee network, using a sniffer it is clear that the system sends first a PermitJoin on for 180 seconds and then immediately after a PermitJoin off, thus as soon as it recognize that there are some nodes in the cache it closes the network.
Suggested remedy: when the user press add device ("aggiungi dispositivo"), the system shall check first if there are nodes in the network not configured yet, and if yes do not opne the network but just configure the new node. If not, open regularly the network.