Let me add my stone to the pile...
I have a DIR-825 (fw 113na, SP 3.0)
I use it with:
A desktop PC running XP SP2 Pro 32 bits with wired connection
A laptop running Windows 7 64 bits (fresh Install with the SP3.0 version) connection wirelessly or wired
A Canon Multifunction Printer MP830
I have had the DIR-825 from its very beginning, and have been through every update of the shareport software, and this last version is the worst ever.
The very first one worked without problems!!!
The second one was unreliable it would connect 70% of the time
The third one was a little bit better but still unreliable,
The current 3.0 is totally unreliable, it will connect may be 40% of the time
Now for the specifics:
Installation is fine configuration and initial connection is fine both in permanent connection or auto connection when requesting to print (my most used configuration).
But when like me you print rarely like a couple of times a week, you never know if it will actually be able to connect. Sometimes it works, Often it does not. When it does not connect, you can see the Printer in the Shareport window, but the connection does not work. If at this point you try to connect manually, it may show connected for a short while, but it does not actually work, and will drop the connection.
When it does not work, the way to always solve the problem, is to power cycle the router. Off for 10seconds, then ON, wait until all networks are up again, and then evrything works fine. When it works I have no issue, no connection drop, everything is perfect both in printing mode and in scanning mode for my multifunction printer Canon MP830.
One other thing I noticed but does not seem related to the issue. Sometimes at the end of a print job, the print task does not close, the printing window stays open with the progress bar at 100%, and you cannot end the task except by disconnecting manually.
I bought this router for the sole purpose of Shareport, I must say it has been nothing but a Nightmare.
two suggestions:
You need to enable some kind of error logging so we can send you precise feedback on what goes wrong with the router and you can get it to work!
You should try to offer some kind of reset function inside the shareport windo, to reinitialize the printer port/driver
Thanks you for listening