Time delay issues When connecting a new AP to an existing Unleashed network

Question

Please help me through the solution of this problem or related documents.

I run the Unleashed network for practice.
Master AP is used as ZoneFlex R720, slave and additional AP are using H510, H320 and so on.

However, if you add a new AP to the unleashed network after the existing network configuration, the AP is automatically set and added to the network takes too long.
(AP is in Factory-default state, time is more than 30 minutes, it takes several hours when it takes long time)

unknown · Answer

you have 200.5.10.0.235.bl7 version on up and running network. correct?
also on the AP which you are try to add to the network??

unknown · Answer

i use firmware version  200.5.10.0.235.bl7