I don't know if you got your Linkstation reset, but the instructions in the first reply you got was wrong.
Youhave to shut the unit off, wait about 90 seconds till its off. Nowwhile holding the function button turn the unit to "ON" and continue tohold the function button for 6 seconds. This should reset the passwordto "password" and you can then change it from there. Now once it powerlight stops blinking blue and turns green try to log in and see if itchanged..
I had the same problem as you, but I found a better post from the company to explain it.
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This will put the device into EM mode and not reset the unit back to factory defaults. This mode is a different function similiar to a "safe mode" very effective for most cases.