i'd suggest posting some screenshots of what you see in the network license manager
does it show that you have licenses?
I needed to use the fully qualified name for the server to see itself and read the liceneses firstname.lastname@example.org.
There was a suggestion to try the IP address (eg. 25734@10.XX.XX.XX) but this didnt even work. When setting up the Solidworks client I also used the fully qualified domain name. Previous installs for me I only used the server name without the domain but I guess something changed when we moved from server 2003 to 2008.