Cisco 1811W - Memory Leak?

Hi, I just purchased and installed a Cisco 1811W router and after about a week it locked up due to memory was all used up, could only interface with it via console cable.  Both the Processory memory and the I/O memory were all used up, the processor total is 62178960 and the I/O total is 12582912, I think the process that using it up is the "IP Background" process but I'm not sure.  If I do a reload it seems to clear it up but seconds after re-connecting it to the users it locks up again.  Here's my config:

_______________________________________

Cisco1811W#show run
Building configuration...

Current configuration : 6189 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Cisco1811W
!
boot-start-marker
boot-end-marker
!
logging buffered 51200
enable secret 5 XXXXXXXXXXXXXXXX
enable password XXXXXXXXX
!
no aaa new-model
!
crypto pki trustpoint TP-self-signed-1940331043
 enrollment selfsigned
 subject-name cn=IOS-Self-Signed-Certificate-1940331043
 revocation-check none
 rsakeypair TP-self-signed-1940331043
!
!
crypto pki certificate chain TP-self-signed-1940331043
 certificate self-signed 01
    XXXXXXXXXXXXXXXXXXXXX
        quit
!
!
!
dot11 ssid ssid1
   authentication open
   guest-mode
!
!
!
no ip dhcp use vrf connected
no ip dhcp conflict logging
ip dhcp excluded-address 100.100.100.225 100.100.100.239
ip dhcp excluded-address 100.100.100.250 100.100.100.254
ip dhcp ping timeout 200
!
ip dhcp pool sdm-pool
   network 100.100.100.224 255.255.255.224
   dns-server 100.100.100.30 100.100.100.30
   default-router 100.100.100.254
!
!
ip cef
ip domain name domain.com
ip name-server 100.100.100.30
ip name-server 100.100.100.30
no ipv6 cef
!
multilink bundle-name authenticated
!
!
username root privilege 15 secret 5 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
archive
 log config
  hidekeys
!
!
bridge irb
!
!
!
interface FastEthernet0
 description $ETH-WAN$
 ip address 200.200.200.202 255.255.255.252
 ip access-group 199 in
 ip mask-reply
 ip nat outside
 ip virtual-reassembly
 speed auto
 half-duplex
!
interface FastEthernet1
 no ip address
 shutdown
 speed auto
 half-duplex
!
interface FastEthernet2
 spanning-tree portfast
!
interface FastEthernet3
 spanning-tree portfast
!
interface FastEthernet4
 spanning-tree portfast
!
interface FastEthernet5
 spanning-tree portfast
!
interface FastEthernet6
 spanning-tree portfast
!
interface FastEthernet7
 spanning-tree portfast
!
interface FastEthernet8
 spanning-tree portfast
!
interface FastEthernet9
 spanning-tree portfast
!
interface Dot11Radio0
 no ip address
 !
 encryption vlan 1 key 1 size 40bit 0 XXXXXXXXXXX transmit-key
 encryption vlan 1 mode wep mandatory
 !
 ssid ssid1
 !
 speed basic-1.0 basic-2.0 basic-5.5 6.0 9.0 basic-11.0 12.0 18.0 24.0 36.0 48.0
 54.0
 station-role root
 bridge-group 1
 bridge-group 1 subscriber-loop-control
 bridge-group 1 spanning-disabled
 bridge-group 1 block-unknown-source
 no bridge-group 1 source-learning
 no bridge-group 1 unicast-flooding
!
interface Dot11Radio1
 no ip address
 shutdown
 speed basic-6.0 9.0 basic-12.0 18.0 basic-24.0 36.0 48.0 54.0
 station-role root
!
interface Vlan1
 description $ETH-SW-LAUNCH$$INTF-INFO-FE 2$
 no ip address
 ip mask-reply
 ip virtual-reassembly
 ip tcp adjust-mss 1452
 bridge-group 1
!
interface Async1
 no ip address
 encapsulation slip
!
interface BVI1
 ip address 100.100.100.254 255.255.255.224
 ip access-group 198 in
!
router rip
 redistribute connected
 network 100.0.0.0
 network 200.0.0.0
!
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 FastEthernet0
!
!
ip http server
ip http authentication local
ip http secure-server
ip http timeout-policy idle 60 life 86400 requests 10000
ip http client source-interface FastEthernet0
!
logging trap debugging
access-list 198 deny   tcp any any eq 1433 log
access-list 198 deny   udp any any eq 1433 log
access-list 198 deny   tcp any any eq 1434 log
access-list 198 deny   udp any any eq 1434 log
access-list 198 permit icmp any any log
access-list 198 permit ahp any any
access-list 198 permit eigrp any any
access-list 198 permit igmp any any
access-list 198 permit ipinip any any
access-list 198 permit nos any any
access-list 198 permit ospf any any
access-list 198 permit pcp any any
access-list 198 permit pim any any
access-list 198 permit gre any any
access-list 198 permit esp any any
access-list 198 permit ip any any
access-list 199 permit tcp 150.150.150.32 0.0.0.31 host 200.200.200.202 log
access-list 199 permit udp 150.150.150.32 0.0.0.31 host 200.200.200.202 log
access-list 199 permit ip 150.150.150.32 0.0.0.31 host 200.200.200.202 log
access-list 199 permit tcp 150.150.150.32 0.0.0.31 any log
access-list 199 permit udp 150.150.150.32 0.0.0.31 any log
access-list 199 permit ip 150.150.150.32 0.0.0.31 any log
access-list 199 permit tcp any any established
access-list 199 permit udp any eq domain any log
access-list 199 permit icmp any any log
access-list 199 deny   ip any any log
dialer-list 1 protocol ip permit
dialer-list 1 protocol ipx permit
no cdp run

!
!
!
!
!
!
control-plane
!
bridge 1 protocol ieee
bridge 1 route ip
!
line con 0
 login local
line 1
 modem InOut
 stopbits 1
 speed 115200
 flowcontrol hardware
line aux 0
line vty 0 4
 privilege level 15
 password letmein
 login local
 transport input telnet ssh
line vty 5 15
 privilege level 15
 password letmein
 login local
 transport input telnet ssh
!

!
webvpn cef
end

________________________________________

Is there anything I need to disable or is this a memory leak?  Any help is appreciated.

Thanks!