C9300 DHCP Pool and Static DHCP address - issue

[eeebbunee]

Hello Professionals,

Recently, I'm having an issue for some devices which has static DHCP ip address from the switch.

So I'm looking for the cause, but couldn't fine yet.

Here's my switch info:

Switch Ports Model SW Version SW Image Mode
------ ----- ----- ---------- ---------- ----
* 1 53 C9300L-48P-4X 17.06.04 CAT9K_IOSXE BUNDLE
2 53 C9300L-48P-4G 17.06.04 CAT9K_IOSXE BUNDLE

ip dhcp pool Mgmt-Wireless
 network 10.10.228.64 255.255.255.192
 default-router 10.10.228.65
 lease 0 12

ip dhcp pool IT-Amy
 host 10.10.228.70 255.255.255.192
 client-identifier 01xx.aabb.3344.ef

This morning IT-Amy can't get ip address suddenly. She got garbage IP (169.254.x.x) so I had to delete static binding for her.

Is this one of known bug? if so, is there recommended version I need to upgrade?

Thank you for your comments.

[M02@rt37]

Hello @eeebbunee,

Review the switch's logs and see if there are any error messages or events related to DHCP lease assignments or conflicts.

Also, check for network issues or disruptions that might have caused the device to lose its DHCP lease and request a new one. This could include network interruptions, connectivity problems, or DHCP server issues.

[eeebbunee]

Hello,
When I check the logs from the switch, I had a one log about DHCP conflict. 
However, this conflict was not related this pool it was other pool (10.10.223.0/24).

If I need further investigate, which command that I need to put?

Thank you so much.

[M02@rt37]

Thanks @eeebbunee.

You can enable debugging for DHCP processes to capture detailed information about DHCP interactions. However, be cautious with debugging, as it can generate a significant amount of output.

Do debug ip dhcp server events command.

[eeebbunee]

I will try, probably during weekend. I appreciate your comment.!