I recently upgraded my DGL-5500 to 1.11 from 1.01 to get the performance improvements, but now I've got nothing but head-aches if I try to kill some time playing my Xbox 360 over Xbox Live. 

Everything worked prior to the upgrade.
I'm able to connect to Xbox Live (I have a Port Forwarding Policy for the required ports), but when I try to play Call of Duty: Black Ops 2 just before the actual game play starts I get an error stating I've been disconnected from Xbox Live.
If I look at my Android Phone, iPhone4s (work phone), and Win7 Laptop they all show the WIFI as down. They eventually reconnect to the router.
I can reproduce the drop each time I try to play through Xbox Live. 

My ISP is Charter and I have the Cable Modem they provided (Cisco DPC3010) and the DGL-5500.
From the Log I can see UDHCPD received a SIGTERM.
When I did the upgrade I did the factory reset (twice) and configured the device from scratch. I've also reset the network connection on the 360, but the issue still occurs.
I was thinking about putting 1.01 back on the device, but thought I'd reach out for help first.
I also tried emailing D-Link support (twice), but have not heard anything from them.
Here is the Log:
Nov 13 08:46:43     info     UDHCPD Inform: add_lease 192.168.121.112
Nov 13 08:46:40     debug     UDHCPD sending ACK to 192.168.121.112
Nov 13 08:46:40     info     UDHCPD sending OFFER of 192.168.121.112
Nov 13 08:46:39     debug     UDHCPD sendOffer : find a free IP
Nov 13 08:46:37     debug     UDHCPD sending ACK to 192.168.121.111
Nov 13 08:46:37     info     UDHCPD sending OFFER of 192.168.121.111
Nov 13 08:46:36     debug     UDHCPD sendOffer : find a free IP
Nov 13 08:46:36     info     Service  D-Link HNAP Service  (/var/etc/avahi/services/dhnap.service) successfully established.
Nov 13 08:46:36     info     Service  D-Link DGL-5500A1  (/var/etc/avahi/services/mtdaap.service) successfully established.
Nov 13 08:46:35     info     Server startup complete. Host name is dlinkrouter.local. Local service cookie is 2621474930.
Nov 13 08:46:35     debug     UDHCPD sending ACK to 192.168.121.110
Nov 13 08:46:35     info     UDHCPD sending OFFER of 192.168.121.110
Nov 13 08:46:34     debug     UDHCPD sendOffer : find a free IP
Nov 13 08:46:34     info     Registering new address record for 192.168.121.1 on br0.*.
Nov 13 08:46:34     info     Registering new address record for 192.168.121.1 on br0.*.
Nov 13 08:46:34     info     Registering new address record for fe80::7a54:2eff:fe11:db9b on br0.*.
Nov 13 08:46:34     info     Registering new address record for fe80::7a54:2eff:fe11:db9b on br0.*.
Nov 13 08:46:34     info     Network interface enumeration completed.
Nov 13 08:46:34     info     New relevant interface br0.IPv4 for mDNS.
Nov 13 08:46:34     info     Joining mDNS multicast group on interface br0.IPv4 with address 192.168.121.1.
Nov 13 08:46:34     info     New relevant interface br0.IPv6 for mDNS.
Nov 13 08:46:34     info     Joining mDNS multicast group on interface br0.IPv6 with address fe80::7a54:2eff:fe11:db9b.
Nov 13 08:46:34     info     Loading service file /var/etc/avahi/services/mtdaap.service.
Nov 13 08:46:34     info     Loading service file /var/etc/avahi/services/http.service.
Nov 13 08:46:34     info     Loading service file /var/etc/avahi/services/dhnap.service.
Nov 13 08:46:34     info     avahi-daemon 0.6.30 starting up.
Nov 13 08:46:34     info     Successfully dropped root privileges.
Nov 13 08:46:34     info     Found user 'root' (UID 0) and group 'root' (GID 0).
Nov 13 08:46:33     info     Current local time and date: Wed Nov 13 08:46:33 2013 
Nov 13 08:46:33     info     read /etc/hosts - 3 addresses
Nov 13 08:46:33     info     using nameserver 24.205.224.36#53
Nov 13 08:46:33     info     using nameserver 24.205.192.61#53
Nov 13 08:46:33     info     using nameserver 68.116.46.115#53
Nov 13 08:46:33     info     reading /etc/resolv.conf
Nov 13 08:46:33     info     compile time options: IPv6 GNU-getopt no-ISC-leasefile no-DBus no-I18N no-TFTP
Nov 13 08:46:33     info     started, version 2.41 cachesize 150
Nov 13 08:46:32     info     device_lan_ip=192.168.121.1 , device_lan_subnet_mask=255.255.255.0
Nov 13 08:46:32     info     DHCP server start.
Nov 13 08:46:30     info     avahi-daemon 0.6.30 exiting.
Nov 13 08:46:30     info     Leaving mDNS multicast group on interface br0.IPv4 with address 192.168.121.1.
Nov 13 08:46:30     info     Leaving mDNS multicast group on interface br0.IPv6 with address fe80::7a54:2eff:fe11:db9b.
Nov 13 08:46:30     info     Got SIGTERM, quitting.
Nov 13 08:46:30     info     exiting on receipt of SIGTERM
Nov 13 08:46:30     info     Aperture turned off
Nov 13 08:46:29     info     ozKer: (INFO): Parent process exiting. 
Nov 13 08:46:29     info     ozKer: (INFO): Listening on 127.0.0.1:9000 
Nov 13 08:46:29     info     ozKer: (INFO): Running as daemon 
Nov 13 08:46:29     notice     (NOTICE): policy_engine: output pipe ok: /var/run/appflow/tccpipe 
Nov 13 08:46:29     notice     (NOTICE): input pipe ok: /var/run/appflow/drflocs_out 
Nov 13 08:46:22     notice     (NOTICE): Local Net: 192.168.121.0 / 255.255.255.0 
Nov 13 08:46:22     notice     (NOTICE): Policy Engine Start 
Nov 13 08:46:22     info     bwcd start complete 
Nov 13 08:46:21     info     bwcd starting 
Nov 13 08:45:59     info     streamboost update 
Nov 13 08:45:59     info     StreamBoost: Executing boot all
Nov 13 08:45:59     debug     UDHCPD Received a SIGTERM
Nov 13 08:45:59     debug     dhcpc sent restart signal  to rc (RESTART APP)
Nov 13 08:45:59     debug     dhcpc is waiting for rc to be idle.
Nov 13 08:45:58     notice     crond 2.3.2 dillon, started, log level 8 
Nov 13 08:45:57     debug     dhcpc is waiting for rc to be idle.
Nov 13 08:45:56     info     version 1.8.3 started
Nov 13 08:45:55     debug     dhcpc is waiting for rc to be idle.
Nov 13 08:45:53     debug     dhcpc is waiting for rc to be idle.
Nov 13 08:45:52     info     Service  D-Link HNAP Service  (/var/etc/avahi/services/dhnap.service) successfully established.
Nov 13 08:45:52     info     Service  D-Link DGL-5500A1  (/var/etc/avahi/services/mtdaap.service) successfully established.
Nov 13 08:45:52     info     Server startup complete. Host name is dlinkrouter.local. Local service cookie is 3690952496.
Nov 13 08:45:52     notice     HTTP listening on port 65530
Nov 13 08:45:51     info     Got SIGHUP, reloading.
Nov 13 08:45:51     info     Files changed, reloading.
Nov 13 08:45:51     info     Files changed, reloading.
Nov 13 08:45:51     info     Files changed, reloading.
Nov 13 08:45:51     info     Files changed, reloading.
Nov 13 08:45:51     info     disable write rom conf. 
Nov 13 08:45:51     info     Registering new address record for 192.168.121.1 on br0.*.
Nov 13 08:45:51     info     Registering new address record for 192.168.121.1 on br0.*.
Nov 13 08:45:51     info     Registering new address record for fe80::7a54:2eff:fe11:db9b on br0.*.
Nov 13 08:45:51     info     Registering new address record for fe80::7a54:2eff:fe11:db9b on br0.*.
Nov 13 08:45:51     info     Network interface enumeration completed.
Nov 13 08:45:51     info     New relevant interface br0.IPv4 for mDNS.
Nov 13 08:45:51     info     Joining mDNS multicast group on interface br0.IPv4 with address 192.168.121.1.
Nov 13 08:45:51     info     New relevant interface br0.IPv6 for mDNS.
Nov 13 08:45:51     info     Joining mDNS multicast group on interface br0.IPv6 with address fe80::7a54:2eff:fe11:db9b.
Nov 13 08:45:51     info     Loading service file /var/etc/avahi/services/mtdaap.service.
Nov 13 08:45:51     info     Loading service file /var/etc/avahi/services/http.service.
Nov 13 08:45:51     info     Loading service file /var/etc/avahi/services/dhnap.service.
Nov 13 08:45:51     info     avahi-daemon 0.6.30 starting up.
Nov 13 08:45:51     info     Successfully dropped root privileges.
Nov 13 08:45:51     info     Found user 'root' (UID 0) and group 'root' (GID 0).
Nov 13 08:45:51     debug     dhcpc is waiting for rc to be idle.
Nov 13 08:45:50     info     Current local time and date: Wed Nov 13 08:45:50 2013 
Any help is greatly appreciated!!