Why my Only NAS is shown as NAS-2 in Finder I have been using my NAS named JBPersonalCloud for a while, and I always used Wi-Fi to connect to my home network. 

A few days ago, I connected my Mac to my home network via both Wi-Fi and Ethernet for a couple of minutes to test the Ethernet speed. But then I dropped the wire and remained Wi-Fi only. However, since then, Finder has started to show my NAS as JBPersonalCloud-2. But there is no second JBPersonalCloud, and I am using the original connection interface (Wi-Fi). 



I have tried to reboot the NAS, the router, and my Mac.But the -2 suffix still is there. Is there a way that I can change it back? Thanks!
There is probably a “JBPersonalCloud” remnant in /Volumes directory. When you connect the NAS, the system sees that there is already a “JBPersonalCloud” and appends the “-2” for the newly connected NAS. 

Disconnect the NAS and delete the remnant with the Finder or Terminal then reconnect the NAS.

Finder:
Select “Go to folder...”, enter /Volumes and tap “Go”. This will open the Volumes folder in a window where you can delete the remnant. Simply drag it to the trash (you may need to authenticate).

Terminal:
Open Terminal.app and type

cd /Volumes
ls -la


This will show you the list of drives that are currently mounted. If you see the remnant it can be deleted with...

sudo rm JBPersonalCloud


It will ask for an administrator password.