Cisco 1260 AP no longer responds to ping, ssh after upgrade to latest 15.x firmware

I have a 1260 AP that I upgraded this morning. Prior to the upgrade, the system permitted ssh and would respond to pings on the network, however now it does not respond.

I hooked up a serial cable and surfing around the config I can't seem to find anything amiss, and turning on ssh debugging is not producing any output.

I tried regenerating the RSA key in the off chance that was causing ssh to not come online, however it has not affected the inability to contact the unit over the network.

I also tried turning on "ip routing" and "ip cef" thinking they might be the issue, but no effect. I also added a static default route out to our management gateway in hopes that perhaps it was a default route issue but it also did not help

Here's the current version of IOS on the unit:

Cisco IOS Software, C1260 Software (AP3G1-K9W7-M), Version 15.2(2)JB, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2012 by Cisco Systems, Inc.
Compiled Mon 10-Dec-12 23:42 by prod_rel_team

ROM: Bootstrap program is C1260 boot loader
BOOTLDR: C1260 Boot Loader (AP3G1-BOOT-M), Version 12.4 [mpleso-ap_jmr3_esc_0514 125]

Here's the current running config:

DEN-AP01#sh run full
Building configuration...

Current configuration : 3535 bytes
!
! Last configuration change at 00:22:30 UTC Mon Mar 1 1993 by gbeech
version 15.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname DEN-AP01
!
!
logging rate-limit console 9
logging console warnings
enable secret 5 redacted
!
no aaa new-model
ip cef
ip domain name ds.stackexchange.com
!
!
!
dot11 syslog
dot11 vlan-name DEN-CLIENTS vlan 20
dot11 vlan-name DEN-MGMT vlan 10
dot11 vlan-name DEN-WIRELESS vlan 50
!
dot11 ssid StackGuest
   vlan 50
   authentication open
   authentication key-management wpa version 2
   mbssid guest-mode
   wpa-psk ascii 7 redacted
!
!
dot11 network-map
crypto pki token default removal timeout 0
!
!
!
!
bridge irb
!
!
!
interface Dot11Radio0
 no ip address
 no ip route-cache
 !
 encryption mode ciphers tkip
 !
 encryption vlan 50 mode ciphers aes-ccm tkip
 !
 ssid StackGuest
 !
 antenna gain 0
 mbssid
 speed  basic-1.0 basic-2.0 basic-5.5 basic-11.0 basic-6.0 basic-9.0 basic-12.0 basic-18.0 basic-24.0 basic-36.0 basic-48.0 basic-54.0
 channel 2427
 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 Dot11Radio0.50
 encapsulation dot1Q 50
 no ip route-cache
 bridge-group 50
 bridge-group 50 subscriber-loop-control
 bridge-group 50 spanning-disabled
 bridge-group 50 block-unknown-source
 no bridge-group 50 source-learning
 no bridge-group 50 unicast-flooding
!
interface Dot11Radio1
 no ip address
 no ip route-cache
 !
 encryption vlan 50 mode ciphers tkip
 !
 encryption mode ciphers tkip
 !
 ssid StackGuest
 !
 antenna gain 0
 dfs band 3 block
 mbssid
 channel dfs
 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 Dot11Radio1.50
 encapsulation dot1Q 50
 no ip route-cache
 bridge-group 50
 bridge-group 50 subscriber-loop-control
 bridge-group 50 spanning-disabled
 bridge-group 50 block-unknown-source
 no bridge-group 50 source-learning
 no bridge-group 50 unicast-flooding
!
interface GigabitEthernet0
 no ip address
 no ip route-cache
 duplex auto
 speed auto
 no keepalive
 bridge-group 20
 bridge-group 20 spanning-disabled
 no bridge-group 20 source-learning
!
interface GigabitEthernet0.10
 encapsulation dot1Q 10
 no ip route-cache
 bridge-group 1
 bridge-group 1 spanning-disabled
 no bridge-group 1 source-learning
!
interface GigabitEthernet0.50
 encapsulation dot1Q 50
 no ip route-cache
 bridge-group 50
 bridge-group 50 spanning-disabled
 no bridge-group 50 source-learning
!
interface BVI1
 ip address 10.15.0.6 255.255.255.0
 no ip route-cache
!
interface BVI50
 no ip address
 no ip route-cache
!
ip default-gateway 10.15.0.1
ip forward-protocol nd
ip http server
no ip http secure-server
ip http help-path http://www.cisco.com/warp/public/779/smbiz/prodconfig/help/eag
ip route 0.0.0.0 0.0.0.0 10.15.0.1
!
access-list 111 permit tcp any any neq telnet
bridge 1 route ip
!
!
!
line con 0
 access-class 111 in
line vty 0 4
 login local
 transport input ssh
line vty 5 15
 login local
 transport input ssh
!
end

Any suggestions would be appreciated, I'm pretty stumped as to why this would suddenly go wrong.

EDIT: Here's the recreating of crypto keys output.

DEN-AP01(config)#crypto key generate rsa modulus 1024
% You already have RSA keys defined named DEN-AP01.ds.stackexchange.com.
% They will be replaced.

% The key modulus size is 1024 bits
% Generating 1024 bit RSA keys, keys will be non-exportable...
[OK] (elapsed time was 1 seconds)

DEN-AP01(config)#
*Mar  1 01:02:01.411: %SSH-5-DISABLED: SSH 1.99 has been disabled
*Mar  1 01:02:02.515: %SSH-5-ENABLED: SSH 1.99 has been enabled