http://dlcdnet.asus.com/pub/ASUS/wireless/RT-N66U_B1/FW_RT_N66U_B1_3004246.zip From Asus Web site: ASUS RT-N66U B1 Firmware Version 22.214.171.124.246 IMPORTANT, DUE TO THE NVRAM SIZE UPGRADE, CHANGE TO THIS VERSION FIRMWARE (FROM 126.96.36.199.X UPGRADE TO 188.8.131.52.X) WILL WIPE ALL YOUR SETTING! AFTER UPGRADED FIRMWARE, PLEASE PRESS THE RESET BUTTON AND HOLD OVER 5 SECONDS TO RESET THE ROUTER TO DEFAULT. Fix: 1. DMZ and HW accelerator coexist issue. 2. Some 3G modem issues 3. Can't reset to default through Software Button when AiCloud is enabled. 4. WPS related issues. 5. VPN dns issue in Android/iOS 6. Buffer overrun problem. Special thanks to Merlin for his contribution. Modify 1. Add GRO option in Advanced settings->LAN->Switch control. Please disable it if there are problems in UPnP and port forwarding. 2. Add firmware version checking in Quick Internet Setup process. 3. Add PIN code error alerting for USB modem 4. WPS button can be configured as wifi on/off button AiCoud (for more information, please refer to http://event.asus.com/2012/nw/aicloud/index.htm) 1. Modify web user interface. 2. Folder is shareable with shared link. 3. The media files can be previewed when received the share link for folder. 4. Redirect mp3 https share link to MP3 player on IOS device. 5. Fixed the large file renaming problem 6. Fixed some UI issues.