DHCP issue on cisco AP

I need help figuring out a solution for the issue I am having. I have a basic ISP modem to router to switch to Access-Point config. and set up. I have SSID's configured on the AP. A lot of times, (50%) of time the SSID will get an IP from the VLAN I specified in the config of the SSID AP config and switch but, sometimes, It will get a 192.168.1.5 for example IP. I found the devices that it's doing this and i found it was my ISP wireless modem. How do I fix this? It's a netgear router. I have DHCP snooping configured on the switch, with with "ip dhcp snooping trust" on all trunks. I also have it on the AP interface that goes into the switch with "ip dhcp relay information trusted" as well as on the cisco router. How can I fix this issue so the APs will no longer receive DHCP address from the netgear? See image attached.
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Shark AttackNetwork adminAsked:
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CompProbSolvCommented:
Can you just turn off the DHCP server on the Netgear router?

If your devices can "see" both DHCP servers when asking for an address, they will be inconsistent on which provides the address.
Shark AttackNetwork adminAuthor Commented:
will this interfere with LAN  in any way?
CompProbSolvCommented:
I'm not entirely clear on the configuration.  The key is that you want every device (that may require DHCP) to have access to exactly one DHCP server.  Is there anything that you want to use DHCP that can't see the other (not the Netgear) DHCP server?
Muhammad BurhanManager I.T.Commented:
disable DHCP at Netgear.
At WAN interface of R1, configure static IP 192.168.1.2
Enable DHCP at R1.
that will resolve that matter.

you can also reserve an IP (bind) in DHCP at R1 against AP's MAC address.

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Shark AttackNetwork adminAuthor Commented:
ok i will disable dhcp will see what happens. i will let everyone know what happened.
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