Are there any errors in the event log?

Did you try rebooting the server and wireless router?  Can you try getting a DHCP address from this server without using the wireless access, plug a network card & cable into a switch and see if it assigns an address that way.

What OS are the clients running? Are they also on NT4? NT5? XP? And is the DHCP server patched to the SP6a level?

Nope, my range is 10.1.1.181 to 10.1.1.230

And that gives me 50 IPs.

But I do notice that I never seem to get beyond 10 IPs assigned.  Is there something I do not know about?

NT40 Server or NT40 Workstation? Native NT DHCP server, or 3rd party on Workstation?
Workstation is limited to 10 connections period.
Server should not be limited.
What subnet mask did you assign the DHCP scope?

Might I ask if NT4 is a requirement for this?  There are so many other OSes and/or devices that can provide DHCP services that also have the advantage of being currently-supported products.  

In your other question you mention that this is for public wireless access.  Does the wireless access point not have DHCP capabilities?  Many do.  That may be a more appropriate place for this function.  

Alternatively, if you have another DHCP server on the same network as this range of addresses, and it's capable of it, a subnet zone can be associated to some more-sophisticated WAPs so your regular DHCP server can service a separate address range only for devices connecting through the WAP.

It's an NT4 server.  Yep, it's definately a server.  How do I find out what my "limit" is?

I'm using that (Cisco?) Linksys one-touch setup WAP.  I think it's the WAP54G.  I do not know if that has DHCP.  I'll check it out on Monday.

Unfortunately, that's the only server for the "student_network".  I do want the wireless to obtain IPs on the staff network.

I do not see the field "Maximum number of users".

Here is the screenshot of my WAP setup screen:
http://www.ftmsglobal.com/temp_stuff/sg/DHCPProblem/WAP54G_setupscreen.JPG

I do not see that field in the other tabs as well.

I took a quick glance at the user manual and it says it supports up to 65 users, less if they are bandwidth-intensive.  It also says it does not provide DHCP services because it's essentially a wireless hub.  Nothing on configuring or limiting that number of users.

What is the best thing I should do?  Surely there are NT4 DHCP servers out there that are running just fine.  What could possibly be the problem?

I would suggest swapping out the AP for a wireless router with DHCP and other features and just use it as your wireless AP.

Are you saying that NT4 DHCP service is not usable?  I was kinda hoping someone would show me how to "fix" my existing DHCP server rather than tell me to go buy a new one.

"Surely there are NT4 DHCP servers out there that are running just fine."

Probably, but the number is surely decreasing rapidly, as is the number of technical people that have more than a fading memory of NT4.  We have two here, still, to support our soon-to-be-upgraded Citrix servers which are still in the old domain and are the only reason the old domain controllers are still active.  The other NT4 services have long since been moved to Windows 2003 R2 or Linux, and we never ran DHCP on our NT4.  I'm only posting as one who has some general knowledge of DHCP services.

Since DHCP services on SOHO wireless routers tends to work just fine for a relatively small population, and can be configured with a few clicks and keystrokes, I concur with lrmoore's recommendation.   Rather than frustrating yourself further with trying to debug the NT4 DHCP service, use a device that has simple DHCP services built in.  
You'd only need to use a server-based or enterprise-router-based DHCP service IMHO if you need to provide special service types via DHCP, beyond DNS and gateway.  Things like PXE, BOOTP, RIS, SLP, etc.  

I had a thought.

My student network has IP range 10.1.1.0 to 10.1.1.255.  And my existing NT4 student server is 10.1.1.6

I have another machine that is running Windows 2003 server, and its IP address is 192.168.42.16.  

Restrictions:
1. I must not change the IP address of my 2003 server (it is used for other purposes)
2. DHCP addresses issued must be from 10.1.1.181 to 10.1.1.230

Do you think it is achievable?  Can I use the DHCP to assign IPs that are not within my IP range?

A Netscreen10 Firewall?

Well, I found a Win2000 server lying around and used its DHCP service.  Seems to be working much better than NT4's service.

close this topic

@ keith_alabaster,

What is your resolution recommendation?