Cisco2611 Blueyonder Help

[sweeney1975]

I really hope some one can help with this one. I have configured my Cisco 2611 eth0/0 to receive a DHCP address from my ISP. This works fine and my hosts on the LAN side work for about five minutes using NAT to translate their address. The problem is this seems to stop after a couple of minutes or so. Nothing then works I can not ping anything outside the lan even from the router. I am hoping that there is someone out there with a working Cisco config for a Cisco 2600 plugged into a Motorola Surfboard cable modem and using Blueyonder as a ISP and NAT. I have attached my config so that you can see if there is something obviously wrong. My hunch is that there is a compatibility issue with my ISP or some fine tuning I need to do. Thanks to any one that can help me....

sh run
Building configuration...

Current configuration : 1298 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
service password-encryption
!
hostname EAGLE1
!
aaa new-model
aaa authentication login default local
aaa authorization exec default local
enable secret 5 $1$BShd$.ItWs5Z1vwvY3iVQKVEeV/
enable password 7 030054040B0A25
!
username EAGLE2 password 7 03174F04080A33435D0C0A
username Sweeney password 7 111A0D0A19171903172F38
ip subnet-zero
!
!
ip host EAGLE3 192.168.3.2
ip host EAGLE2 192.168.2.2
ip dhcp excluded-address 192.168.1.1 192.168.1.9
ip dhcp excluded-address 192.168.1.50 192.168.1.255
!
ip dhcp pool EYESTRAIN
network 192.168.1.0 255.255.255.0
default-router 192.168.1.1
dns-server 62.31.144.39 195.188.53.175
!
!
!
!
interface Ethernet0/0
ip address dhcp client-id Ethernet0/0
ip nat outside
full-duplex
!
interface Serial0/0
ip address 192.168.2.1 255.255.255.0
encapsulation ppp
shutdown
ppp authentication chap
!
interface Ethernet0/1
ip address 192.168.1.1 255.255.255.0
ip nat inside
full-duplex
no cdp enable
!
ip nat inside source list 1 interface Ethernet0/0 overload
ip classless
no ip http server
!
access-list 1 permit 192.168.1.0 0.0.0.255
!
line con 0
password 7 071C3543400C0B0A041718
logging synchronous
line aux 0
line vty 0 4
password 7 105D1D160B1200041F0139
!
end