the static ARP entry is necessary because after a timeout period of your pc being in standby, the router's dynamic ARP cache expires and can never resolve the mac address for that ip.
I'm still digging for a way to edit persistent ARP entries via router configuration, etc
Have you tried this:
Reserving an DHCP address: •Click on the ADVANCED icon at the top •YES to the nag. •Select IP Address Distribution •Select Connection List •Select New Static Connection •Enter host name •Enter IP address •Enter MAC address •APPLY
