If you change the IP of the EAP or if DHCP assigns another IP due to short lease expiration time, it is possible that two IPs temporarily show up in the ARP table:

[CODE]# arp -a
IP address HW type Flags HW address Mask Device
192.168.7.144 0x1 0x2 50:c7:bf:59:1d:c2 * br-lan
192.168.7.145 0x1 0x2 50:c7:bf:59:1d:c2 * br-lan
[...]
# [/CODE]

Just clear the ARP cache to get rid of the second IP or wait until it will eventually expire.

IMO it's always best to use static IP assignments for stationary devices unless you have very good reasons to not do so.