%DHCP-W-DECLINE: DHCP Decline was received for IP address - SG300

[patrick.hurley]

I changed my gateway address in my DHCP scope.   All the leases had been set to indefinite previously.   My iPhone stopped working later in the day in that it could never acquire an IP Address so it would never acquire the wifi SSID.

I went into the SG300 and deleted all the DHCP address bindings and I could get connected after thinking it was my Unifi APs.

However I am getting the above message for certain devices.

Anyone know what is going on now? 

[ATNL]

I have the same annoying message, I got this every day.

and some devices are unable to connect to the network.

I have (2 SG350-28P 28-Port Gigabit PoE Managed Switch and 4 SG300-52P 52-Port Gigabit PoE Managed Switch)

I used SG350-28P 28-Port Gigabit PoE Managed as a DHCP server.

I have a lot of headaches I can't solve this problem.

pls, any clue to solve this.

[jimstewart77]

Have you rulled out a device problem?  As an example I have a macbook that accepts DHCP fine on wifi but refuses to accept DHCP on its wired (USB ) LAN (but used to).  It does this with all switches (and I have tried many) and I have even watched it fail to accept DHCP requests on wireshark.  In my case its a software issue that started at some point and I work around, perhaps you have some clients with issues?  I know at some point I will need to reinstall the OS to fix my issue.