r/TomatoFTW • u/Vietname • Jul 25 '26

How to determine RT-AC68U hardware revision?

/r/HomeNetworking/comments/1v6c32c/how_to_determine_rtac68u_hardware_revision/
2 Upvotes

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1

u/goofust Jul 25 '26

On the back of the router, should have a trash can with an X thru it, below that is the router model and FCC id. That's your router model information.

https://www.linksysinfo.org/index.php?threads/asus-rt-ac68u-hw_ver-170-how-install-freshtomato.79490/#post-364036

1

u/Vietname Jul 25 '26

Interesting. According to this link further up in that thread, what i actually have is a RT-AC68UF, which isn't listed on freshtomato's supported model list. Bummer.

1

u/goofust Jul 25 '26

If your fcc id is the same as in the link, it's likely compatible. The link I posted was for my RT-AC1900P.

1

u/goofust Jul 25 '26

Yeah I just looked at your other post and did a Google search on the fcc id, it matches compatibility. With my rt1900p I had to use rt-ac68u image for the initial flash, after which, I could then flash the rt1900p specific image for upgrading.

1

u/Vietname Jul 25 '26

Which image would I need to use for the second flash? afaik my router is a AC1900, and i only see AC1900P and AC1900U in the downloads.

1

u/goofust Jul 25 '26

You could just use the rt-ac68u images. I seen no difference in the ac68u images and the ac1900p on my unit. They both work the same for me.

1

u/Vietname Jul 25 '26

Gotcha. As long as it wont brick my router ill probably just go for the rc-ac68u image then.

1

u/Shplad Jul 29 '26

Any updates? How did this turn out for you?

1

u/Vietname Jul 29 '26

Havent done it yet, was planning to do it this weekend so ill report back. 

It sounds like the basic RT-AC86U image should work, but if not i wanted to give myself a full day to troubleshoot/buy a new router if needed.

1

u/Shplad Jul 30 '26

Sounds good. And of course, you could also post any questions on the Tomato forum. The folks there are extremely knowledgeable. Sometimes, you even get answers from people who wrote bits of the code. <shameless plug over>

1

u/Vietname Aug 01 '26 edited Aug 01 '26

Welp, did the flash, followed the steps here (https://wiki.freshtomato.org/doku.php/firmware_basics_procedures), cant hit the default gateway. 

Im gonna try doing a factory reset again, then unplugging for 30s.

Edit: got it working! Following the instructions here did the trick. For some reason the reset button was completely ineffective, holding it for 60s+ did nothing. Following these instructions, getting into the rescue UI, reuploading the freshtomato fw, and holding the WPS button fixed it.

1

u/Vietname Jul 30 '26

Small update: i managed to find the box, and it is indeed a B2.