I got one for my sister, flashed it to Merlin and got one myself to see how easy it is. Yes, this is the same hardware as the RT-AC68U (depending on which version of the AC68U you get, newer versions will run at 1GHz, not 800MHz). I can't remember how long it took the first time, but the second time it took an hour or less. Time. I followed bayareatechpros guide to convert it to Asus firmware and then to Merlin. My brother-in-law can now stream music from his mower to his entire yard. The old router had problems in the driveway or in the garage. Take your time flashing it. Both times I did it on TV. I took a few steps, took a deep breath, watched TV and took the next few steps. Yes, I was afraid to hit him. So far, so good. If anything changes I will update my review. Got both from dealer number 1. No sign of use. Everything had plastic wrap. The box didn't rattle, but everything looked new to me.
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