#StackBounty: #dd-wrt DD-WRT – how to identify best firmware version for router?

Bounty: 200

I have an ASUS RT-68UC router. I successfully installed DD-WRT on it about 2 yrs ago, build r28493M.

Recently, I wanted to upgrade it so I went to https://www.dd-wrt.com/site/support/router-database. Entering the router info got me

RT-AC68U Firmware - Webflash image asus_rt-ac68u-firmware.trx 2017-09-07 26,30 MB. No real version info, though I notice the download url is https://www.dd-wrt.com/routerdb/de/download/Asus/RT-AC68U/-/asus_rt-ac68u-firmware.trx/4392. Is 4392 the version here?

I downloaded it, went to the router’s Administrate/Firmware Upgrade and well, upload and applied.

Didn’t go well. 10 mins or so later, no router. Eventually, power on/power off. Still not good.

I eventually recovered it via the ASUSTEK Web CFE recovery mechanism and I now on : DD-WRT v24-sp2 (04/22/14) version. One post I saw mentioned that you get the Web CFE when you have the wrong firmware, in order to avoid bricking.

Big advice on ddwrt wiki is to know which firmware to use. But aside from looking up the router database, which had no instructions whatsoever re upgrade flashing, at least for this model, what is the strategy to pick the correct firmware version and the correct installation/firmware upgrade instructions? DD-WRT wiki has endless pages some of which are really really old. Some instructions tell you to use 30-30-30 resets, some say nope, 30-30-30 is for old routers, don’t use.

What are the ways to find authoritative sources for firmware versions & install/upgrade instructions within DDWRT? I don’t mind reading through complex instructions, once I know they are current and apply to my device.

Edit: while it would be great if I got an exact answer to my question, it would be really nice if someone could sketch the broad strategies for dealing with DD-WRT about this, for other routers too. I am sure the build developers do a wonderful job – I like DD-WRT itself – but the website makes it quite hard to find one’s bearing if one is not already an expert. Should I look elsewhere entirely?

https://www.dd-wrt.com/wiki/index.php/Supported_Devices#Asus lists RT-AC68U (AC1900), but only the earliest compatible DD-WRT.

Get this bounty!!!

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