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Unable to Flash DSL-AC68U

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New Around Here
Hi Everyone. I am new here.

I am trying to flash the DSL-AC68U (AC-1900) with Merlins firmware 384.9_0 but keep getting the below message.

"Invalid Firmware Upload
Firmware upgrade unsuccessful. This might result from incorrect image or error transmission, please check the model name DSL-AC68U and version of firmware from support site and try again."

The firmware currently installed is the stock

I noticed the TM-AC1900 is not supported but I cannot see anywhere on the packaging or on my router that I have that version.

Any advice would help.

I didn't know that DSL wasn't supported. Thats a shame. I will take a look at that thread. Thank you.

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