DHCP - two subnets problem

[vortex105]

Situation:

Network with Active Directory, 2003 forest functional level, with DNS and NO WINS;

1 forest, 1 domain, 1 site, let's say domain.local

One dhcp scope which is reaching limit, 192.168.100.0/24.

I needed to increase IP addresses on the network. I chose to create another scope, 192.168.104.0/22, which has 1024 addresses.

I made all necessary settings, like:

- one dhcp superscope, inluding both scopes;

- I configured the router, added new interface, configuring dhcp relay agent to pass dhcp requests between two subnets;

Problem: at the tcp/ip level comunication is fine, the users from the new subnet cand ping, read mail and surf the web; at the netbios level, the users cannot see network neighborhood, cannot see shares and the unc are not working, like \\computername.

If somebody has a hint, please let me know.

Thanks

[nitroshift]

Maybe it would have been simplier to just enlarge the reservations pool.