Cisco 1841 can ping from Router but not from a connected

Good Morning all, I'm new here so this is my first post and I'm hoping that this site can be a useful resource for me going forward.

OK I have a Cisco 1841 connected to a Cable Modem which gives out IP's via DHCP, I can ping Google from the Router via either its IP or Domain name, the problem is that my connected PC can not ping anything beyond the Router.

I can also connect to the PC from a VPN over the Internet and get to a shared drive so I think this may be an Access list issue, but I'm just guessing at that.

PC has acquired an IP address along with default Gateway and DNS Server, I hoping that that this site can provide me with the answers that I'm looking for, below is my configuration with some of the more obvious parts changed for security reasons.

Many thank

Martyn

Code Snippet:

         
           
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             version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname remotevpn
!
boot-start-marker
boot-end-marker
!
enable secret 5 xxxxxxxxxxxxxx
!
aaa new-model
!
!
aaa authentication login default local
aaa authentication login sdm_vpn_xauth_ml_1 local
aaa authentication login userauthen local
aaa authorization exec default local 
aaa authorization network sdm_vpn_group_ml_1 local 
aaa authorization network groupauthor local 
!
aaa session-id common
!
resource policy
!
mmi polling-interval 60
no mmi auto-configure
no mmi pvc
mmi snmp-timeout 180
ip cef
!
!
no ip dhcp use vrf connected
ip dhcp excluded-address 192.168.0.254
!
ip dhcp pool CLIENT
   import all
   network 192.168.0.0 255.255.255.0
   default-router 192.168.0.254 
   dns-server 194.168.8.100 
!
!
ip name-server 194.168.4.100
ip name-server 194.168.8.100
!
!
!
username martyn privilege 15 password 7 xxxxxxxxxxxxxx
username client password 7 xxxxxxxxxxxxx
username chris privilege 15 password 7 xxxxxxxxxxxxx
!
! 
!
crypto isakmp policy 1
 encr 3des
 authentication pre-share
 group 2
!
crypto isakmp client configuration group vpngroup
 key xxxxxxxxx
 dns 194.168.4.100 194.168.8.100
 pool SDM_POOL_1
 acl 100
!
!
crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac 
!
crypto dynamic-map SDM_DYNMAP_1 1
 set transform-set ESP-3DES-SHA 
 reverse-route
!
!
crypto map SDM_CMAP_1 client authentication list sdm_vpn_xauth_ml_1
crypto map SDM_CMAP_1 isakmp authorization list sdm_vpn_group_ml_1
crypto map SDM_CMAP_1 client configuration address respond
crypto map SDM_CMAP_1 65535 ipsec-isakmp dynamic SDM_DYNMAP_1 
!
!
!
interface FastEthernet0/0
 description Broadband Connection
 ip address 192.168.0.254 255.255.255.0
 ip nat inside
 ip virtual-reassembly
 no ip route-cache cef
 no ip route-cache
 duplex auto
 speed auto
 no cdp enable
!
interface FastEthernet0/1
 ip address dhcp
 ip nat outside
 ip virtual-reassembly
 no ip route-cache cef
 no ip route-cache
 duplex auto
 speed auto
 no cdp enable
 crypto map SDM_CMAP_1
!
interface Serial0/0/0
 no ip address
 shutdown
 no fair-queue
 clock rate 2000000
!
ip local pool SDM_POOL_1 192.168.0.10 192.168.0.50
ip route 192.168.3.0 255.255.255.0 FastEthernet0/1
ip route 0.0.0.0 0.0.0.0 dhcp
!
!         
ip http server
no ip http secure-server
ip nat source list 102 interface FastEthernet0/1 overload
!
access-list 100 remark SDM_ACL Category=4
access-list 100 permit ip 192.168.0.0 0.0.0.255 any
access-list 102 permit ip 192.168.3.0 0.0.0.255 any
!
!
!
!
control-plane
!
!
!
line con 0
line aux 0
line vty 0 4
 password 7 104D000A061843535C54
!
end

           
         