Hi all,

Has anyone come across an issue where configuring DHCP Relay across VLANs works fine for most devices except IOS devices (iPhone/MacBooks)?

I have 4 SSIDs each with their own VLAN: VLAN1, VLAN20, VLAN30, VLAN40.

VLAN1: 10.1.10.0/24

VLAN20: 10.20.10.0/24

VLAN30: 10.30.10.0/24

VLAN40: 10.40.10.0/24

DHCP Server 10.1.10.21

Obviously, it works when I connect my iPhone to SSID/VLAN1 as the DHCP server is on the same subnet as the VLAN.

However, it fails when connecting to the other 3 VLANs.  Other devices are absolutely fine, the ONLY ones with problems are the IOS devices.

Is there something I missed configuring with IOS devices?

EDIT: I have an Omada OC200 configuring all my TP-Link devices.