I have a DIR-615 Ver. C1 f/w3.00. We have been having trouble with the the signal becoming weak or non-existent, so I decided to see if a firmware upgrade would solve the problem. I have attempted to upgrade to DIR615C1C2_FW301B11.bin and to DIR615C1_FW313NAB09.bin with the same result for both of them - with several attempts for each.
The message I get is:
"The uploaded firmware file may not be correct. You may have uploaded a file that is not intended for this device, or the uploaded file may be corrupted.
If the uploaded file is correct, it is possible that the device may be too busy to properly receive it right now. In this case, please try the upload again. It is also possible that you are logged in as a 'user' instead of an 'admin' - only administrators can upload new firmware.
The Gateway will not be reprogrammed."
I have disconnected all other devices to reduce traffic, I have attempted the upload multiple times for 3.01 and 3.13NA, I am logged in as the admin, and I believe the files are proper for this hardware version.
Is there something I am missing that prevents me from performing a firmware upgrade?