DD-WRT - Wikipedia
Although the Tomato can be overclocked up to 663 MHz, and because it already was at maximum speed, there’s nothing to be improved there. So as for this round of the DD-WRT vs. Tomato firmware battle as well, Tomato seems to emerge as the winner. 3. User-Interface DD-WRT vs. Tomato vs. OpenWRT Which one should you choose May 15, 2017 AdvancedTomato :: Downloads for NETGEAR R6250 Version 3.5-140 () MD5 ; R6250-1.28.AT-ARM-3.5-140-initial-64K.chk: 6.54M: e597258e241fee303463a8d7516f0374: 1,431: Download: R6250-AT-ARM-3.5-140-AIO-64K.trx
Finally get a stable router using open source firmware. DD
Dec 18, 2012 DD-WRT Forum :: View topic - Flashing from Tomato to DD-WRT
Dec 18, 2012
DD-WRT vs. Tomato firmware - deepwebsiteslinks