Mapped Network Drives

I changed some drives on the network and updated my login batch file to delete the old drives and map the new ones. But it seems it is not working.
I had the script in the group policy. I didn’t think I had to change anything in there because it was already working. But I have a few computers I am trying to do it maunaly and all the drives say Network Drive (N:) I right click on one and say disconnect but it says The network connection could not be found. But I can click on the drive and get all the information that should be.
Any thoughts would be great.
I have already read the GPO by MS and hasn’t helped much.