Will the AP's automatically reconnect once the ZD1200 is reset to factory defaults?

[nathan_kaa]

A ZD1200 needs to be factory reset as the admin credentials have been lost. My questions is will the AP's automatically reconnect  once the ZD1200 is set up again?

[Ankush_Chandan]

Perfect, you are in good shape then. Just reset the ZD and provide it same IP/mask/gateway. AP's would rejoin it.

[david_black_594]

If everything is on the same subnet the APs will discover any/all ZDs on that subnet and join the ZD that has the most available licenses. If you want to keep the same IP that’s fine but if you want to change it, then that is fine too. The APs will discover and join the controller in either case.

If the APs were on different subnets, then the easiest solution would be to use the same IP because the LWAP discovery broadcast works only for all devices on the same subnet. If you wanted to change the controller’s address in that case you would also need to change the L3 discovery mechanism that’s in use (DNS of dhcp opt 43).

[Ankush_Chandan]

With LWAPP, yes they do, however if the AP's are setup initially with Set Director, APs will keep looking for ZD they are configured for.

Since Nathan isnt aware how this was all setup, I would suggest to go with what they have now.

[david_black_594]

Who would ever CLI to individual AP's and do a set director or set scg command?  You would only use those commands in the case of a L3 deployment where there is no ability to create a DNS record or DHCP option 43, or where you have multiple controllers or a mix of ZDs and SZs.  That's the only time those commands would be used.  He has a simple L2 network.

If the previous admin did do a set director, then all Nathan needs to do is factory reset the APs and they will then find to controller at whatever address he chooses.  He has already concluded that he has to factory reset the controller and rebuild everything from scratch.  If it was me, I would not keep or trust anything setup by the previous admin who didn't have the common sense to document the config or pull backups.

[nathan_kaa]

For the sake of continuity I'll probably set the same IP address, there's already a label on it 🙂