Hi,
i have trouble with my new RB493G. I have 2 uplinks, one dsl pppoe connection with static ip
and a cable connection using dhcp to get my dynamic address, some basic firewall rules for nat
and portforward, 2 l2tp/ipsec tunnels. i use the dhcp server of my cisco switch for my lan and
not the one on my RB493G.
The issue i have is the dhcp (client?), after some time the dhcp process eats 100% cpu,
sometimes i have issues that i loose my connection to my cable provider and have to reboot
to get my connection back.
today i updated from 6.4 to 6.6rc1, and got the same behaviour 
Anyone got an idea whats wrong with dhcp?
uptime: 11m57s
version: 6.6
build-time: Nov/01/2013 10:03:38
free-memory: 227.7MiB
total-memory: 256.0MiB
cpu: MIPS 24Kc V7.4
cpu-count: 1
cpu-frequency: 680MHz
cpu-load: 100%
free-hdd-space: 106.7MiB
total-hdd-space: 128.0MiB
write-sect-since-reboot: 1858
write-sect-total: 94791
bad-blocks: 1.7%
architecture-name: mipsbe
board-name: RB493G
platform: MikroTik
NAME CPU USAGE
firewall-mgmt all 0.5%
wireless all 0%
ethernet all 0.5%
console all 0.5%
firewall all 0%
networking all 0.5%
winbox all 0%
management all 3%
telnet all 0%
dhcp all 94.5%
profiling all 0%
bridging all 0%
unclassified all 0.5%
INTERFACE USE-PEER-DNS ADD-DEFAULT-ROUTE STATUS ADDRESS
0 gige2-kdg no yes bound 31.xx.xx.xx/24