Those encryption settings sound fine.
So, you can get an IP address etc. with 1.5.18, you can see the shares, but can't connect?
And with 2.0.36 you can't get an IP address?
Ah, the joys of networking
Ok, back with 1.5.18, some standard things to check.
- does the share name have any spaces in it
- is the share name less than 12 characters long
There are some command line tools you can use, but that really depends on your comfort level with telnet/unix etc.
See this thread for more details