DHCP not working

[Amills]

I have an ISR4321 router and a 2960x switch. I setup a super basic config, with DHCP. My laptop never gets an IP address. Static works fine to get to the internet.

ISR4321/K9 running 16.09.04

!
hostname Test-Router

ip name-server 8.8.8.8 1.1.1.1
ip dhcp excluded-address 10.0.1.65
ip dhcp excluded-address 10.0.1.225
ip dhcp excluded-address 10.0.1.2 10.10.1.11
!
ip dhcp pool USERS-1
network 10.0.1.0 255.255.255.0
default-router 10.0.1.1
domain-name test.com
dns-server 1.1.1.1 8.8.8.8
!

!

!
interface GigabitEthernet0/0/0.1
description Network
encapsulation dot1Q 1 native
ip address 10.0.1.1 255.255.255.0
ip nat inside
!
interface GigabitEthernet0/0/1
description ISP
ip address dhcp
ip nat outside
negotiation auto
!
ip nat inside source list 42 interface GigabitEthernet0/0/1 overload
ip route 0.0.0.0 0.0.0.0 dhcp
!
ip ssh authentication-retries 5
ip ssh version 2
!

access-list 12 permit 10.0.1.0 0.0.0.255
access-list 42 permit 10.0.1.0 0.0.0.255
access-list 55 permit 10.0.1.0 0.0.0.255

!

line con 0
transport input none
stopbits 1
line aux 0
stopbits 1
line vty 0 4
access-class 12 in
exec-timeout 5 0
logging synchronous
login local
transport input telnet ssh
!
!
!
!
!
!##############################################################

switch config

#################################

hostname Switch
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
switch 1 provision ws-c2960xr-48fps-i
system mtu routing 1500
!

!
!
spanning-tree mode pvst
spanning-tree extend system-id
!
!
!
!
vlan internal allocation policy ascending
!
!
!
interface GigabitEthernet1/0/1
switchport mode trunk
!
interface GigabitEthernet1/0/2
switchport mode access
!
...
!
interface GigabitEthernet1/0/48
switchport mode access
!

!
interface Vlan1
ip address 10.0.1.225 255.255.255.0
!
ip default-gateway 10.0.1.1

!
!
line con 0
line vty 5 15
!
end

[Amills]

So, I blasted the router config away, reloaded, entered in each command manually instead loading it from a backup config file or copy and paste from a notepad.  Now it works. Man, these ISR4321 routers frustrating. Lots of little issues with these guys.

[Richard Burts · Accepted solution]

Glad that you got it to work. I looked at the posted config and see why your PC was not able to get an IP address using DHCP. The config had this

ip dhcp excluded-address 10.0.1.2 10.10.1.11

This excludes every address in 10.0.1.x other than the router address. So this issue is pretty much self inflicted.

[Amills]

That would explain when I entered the config manually line by line it worked. Too much tunnel vision to see the issue, the joys of working alone, thank you for that eagle eyed catch.

[Richard Burts]

You are quite welcome. I have spent enough time working alone to appreciate what you say. It is one of the reasons why I find this community so valuable. Hope you will continue to be active in the community.