Newbie to the dlink forums here.
Firstly thank you all for ideas in the forums on how to fix this problem. Mine was very similar to the OP:
Windows 7 laptop lost connection to dns323, but XP desktop still was still seeing the NAS, and able to read/write. I will post my experience and solution to this problem, in the hopes it helps others later. Unfortunately, I have never liked the interface of W7, and thus haven't spent any time to become more familiar with it than general purpose computing.
Set-up:
Windows XP desktop, hardwired to Linksys WRT54GS router v7.2.06
Windows 7 laptop connected via WiFi to network, added to network 2 years after adding the NAS (I may not have mapped the NAS to a drive letter on this laptop)
Dlink DNS-323, v7.0, DHCP enabled, raid 1, was used successfully for about 3 years.
Recently Mrs. 99gecko installed some software for work on the laptop, noticed then that the NAS was not accessible. NAS is only used seasonally, not during the summer months, so I had no clue as to whether it was a recent development or not. I had no idea if the new software was the culprit, so before trying to restore to previous Restore Point, I headed to these forums. It appears to be a common issue.
Resolution process (FYI on my level of competency - I am not a computer expert, but have assembled my own systems years ago, but not since Windows XP):
Tried all different methods of boot sequencing
Disabled windows firewall, and uninstalled antivirus.
Did factory reset on the NAS
Determined that the NAS was visible via ping and could log into NAS from both PC's via IP address (that was a huge relief (because it meant the NAS was able to communicate through the router to the W7 laptop)
Tried using the Easy Search Utility - Could see the NAS and could select the drive volume but would never allow me to map - sometimes it would ask me for the NAS username and password, but would still fail mapping.
Set NAS to static IP
Updated NAS firmware to 1.10
Repeated all of the above.
Tried the static IP and found how to modify the Hosts file as described in this thread.
I did find an interesting solution, suggesting that it was a master browser issue: http://forums.dlink.com/index.php?topic=14522.0, however the solution seemed beyond my capabilities, as I have no experience with LINUX, which is what I believed I needed to learn in order to deal with the problem as described in that thread properly.
So I tried another obvious solution found here:
http://forums.dlink.com/index.php?topic=7609.0
Presto! it worked, although the process was slightly different for my W7 pc (I think that was for XP) and I did not have to do the "Connect using a different user name" step (or whatever the equivalent in W7 was).
I am posting this solution in this thread, as the other one is 4 years old, and perhaps new eyes to this thread will see the solution that worked for me, and help them.
I do not know whether the problem is a master browser conflict as described in the other thread, and I may never know. However, for my level of competency this was the best fix.
thanks to all members who have offered solutions in the different threads.
cheers,
99gecko