Tomato e3000 netmask 0.0.0.0

Hi, I'm sorry for my english.
My linksys e3000 perfectly work with bild Tomato-E3000USB-NVRAM60K-1.28.RT-MIPSR2-132-VPN. But when I upgrade on the bild 138, I have a problem with Subnet mask.
Ifconfig show my IP addres and gateway - correctly, but Subnet Mask - 0.0.0.0. I set basic>network Subnet Mask 255.255.255.0 and push "save", then I got in Status>overview>WAN field subnet mask 0.0.0.0.
My ISP can not use DHCP server. I set my router IP adress, DNS and gateway manualy without DHCP.
What...

Tomato e3000 netmask 0.0.0.0