Possibly but you should have tested that right off the bat before you replaced the caps. Why ask it is surely to be old.
I would not think the Network Access Disk would have the necessary drivers to see the disk. Why not get a normal version of System 7 and the proper drivers, all of which are available all around the net. Also, try hooking the drive up to the external SCSI connector. Since you say it works on the Classic, use the same disk you are trying to use on the CC in the Classic. It should work. If the Network disk does not see it on the Classic, but the Classic otherwise sees it plugged in externally, then you have your answer.