Charlie, thanks for posting that file. Something is strange, though. The netosprog.exe program gives me an error when trying to upload new firmware to a module running this image.bin. The error is "Failed to open FTP session with error 12014". I've snooped the packets with Wireshark and see that it is attempting to connect via FTP using the login/password of "root" and "Netsilicon", which fails. When I use an FTP client and use the login/password of "root" and "password", then it connects.
Was the default password changed at some point? I've been using netosprog.exe to upload firmware to new modules without a problem, so I don't see how this image could be the same as what has been coming on my new modules.