I got a little bit in over my head on this.
I installed OpenWRT on my router and I'm getting 20Mbps speeds on a 300 download line (AC doesn't seem to be working right). It's a refurb so it might be the hardware. I decided to give the original firmware another go before I RMA but when I try doing it through the Web GUI I get a "The uploaded image file does not contain a supported format. Make sure that you choose the generic image format for your platform." error.
I've done some googling and it seems like the process to reverting back is model-specific. I'm not good at all on a CLI and it seems like I could easily brick my router doing something like this.
Tried following this but I get an error on cmd that says "'dd' is not recognized as an internal...' error.
Tried the "debricking" part of this page but the part that says " Start a tftp server with the file
ArcherC2600_1.0_tp_recovery.bin in its root directory" is just way beyond my capabilities (What's a TFTP server? How do I put that file in the root directory?)
Anway, I was just hoping anyone could help me out or give me some pointers on where to look.