Currently running firmware version 1.32NA on DIR-655 (hardware version A4). I have made multiple attempts at updating its firmware, first to 1.33NA and later to 1.34 Beta 3, with no success: on each occasion, it accepts the local .bin file upload, then claims to be in the process of applying the upload (with I think an 80 second countdown), and eventually comes back to the login page, still showing that it's running firmware v1.32NA (verified after logon, refresh, etc -- no update was applied). I have attempted this immediately after a soft reset of the router and even after a hard (power cycle) reset, but still no success.
Any ideas would be very much appreciated. (Any reason to think that the update might work if performed while the router is disconnected from the Internet? or after a configuration reset? Other theories?)