Router Firmware and Utilities. DISCLAIMER: These firmwares are extremely unlikely to brick your router BUT some functionality may . Buffalo WVR-GNF. Tomato is a small, lean and simple replacement firmware for Linksys' WRT54G/GL/GS, Buffalo WHR-G54S/WHR-HP-G54 and other Broadcom-based routers. Discussion in 'Tomato Firmware' started by damwill, Sep 30, I'm able to save, but my WRTSL54GS is behind another router, and it doesn;t want to play by the . v working fine on WHR-HP-G Rafatk Network Guru Member . The clock in my Buffalo WHR-G54S is absolutely atrocious.