This software is not require AT ALL to run this unit. If you know the IP address then you should be able to communciate with it. Try resetting the unit.
Please switch the unit to off and wait until the lights are off.
Hold the function button for 10 seconds while it is still off.
While still holding the function button after 10 seconds please flip the switch to on.
Once the function light begins to blink release the function button and press it again for one second.
Wait until the power light is solid and this will restore your unit.
This process will not delete any data and will only restore the admin password and set the IP address back to DHCP.
Download the latest version of the nas navi software from our site and try that. Once it detects it, put the unit no a static IP address. If you are still getting issues with the software on your mail server you can now remove the software. The only thing the software does is tell you what IP address the unit is at. Again, it is NOT required to run this device.