Buffalo WHR-600D Router Firmware 1.60

Fixes:

- Fixed the issue where the AirStation sometimes replies to Address Resolution Protocol (ARP) requests from the Internet.
- Fixed the issue where a subnet mask cannot be configured correctly sometimes in routing settings.
- Fixed the issue where routing cannot be configured correctly sometimes.
- Fixed the issue where the Internet transmission rate sometimes drops.
- Fixed the issue where the PPPoE connection sometimes stops after the AirStation reboots.
- Fixed the issue with UPnP sometimes not working with some STBs.
- Fixed the issue where some router settings cannot be configured sometimes when the AirStation boots without an Internet connection.
- Modified to assign Automatic Private IP Addressing (APIPA) when the AirStation cannot obtain the IP address from the DHCP server while it is in the bridge mode.
- Fixed the contents of DDNS logs.
- Fixed the issue where the WAN-side IP address characters became corrupted in port forwarding settings when using a PPPoE connection.
- Deleted an unnecessary sentence in the Internet connection wizard.