why clients connected to certain AP(zf-2741) are not getting IP address some
times

Question

i found so many times that clients connected to certain AP were not getting          IP address. what would be possible reasons behind it.

Regards,

kumar

unknown · Answer

I'd start with L2/L3 connectivity.   Check VLANs and ip-helper DHCP forwarding.

Try giving a client a static IP address, connect to that AP and see if they can ping the DHCP server's IP address.

keith_redfield · Answer

DHCP address pool is exhausted (too many clients, overly long reservations)

DHCP server congested (is it the AP, a ZD, a 3rd party?)

High interference

AP restarting/crashing (check the logs)

poor L2 connectivity to DHCP server (check switch)

Faulty AP (swap with another)

....

There's more but that's a good start.