DHCP wireless problems

[5jgibbs]

Ok, this is my setup, I have a linksys RV042 as my router, I disable DHCP and use my windows 2003 server as my DHCP, because of different properties I need to be able to assign. Anyway, from the RV042, I have a Linksys WAP54 connected to that. Now, that is setup correctly and all that good stuff, the problem is, when I try to connect to my wireless network “full strength” sometimes my laptop gets an IP sometimes it will not get an IP.. And when it does get an IP, it takes a WHILE to get it.

Now, when I hook my laptop in the router via a cat5e cable, I get an IP in seconds, even when I do a ipconfig /release and ipconfig /renew and delete the entry for the computer in the DHCP server. Its so fast.

On other wireless networks, I am usually connected with an ip in seconds, this usually takes 30-50 seconds if it actually ends up working.

Any ideas would be great, BTW, I am also running active directory, DNS, WINS, ect from this server…

Thanks

Jeremy

 

[SimonDavies]

It could be for a couple of reasons.

1 it could be that the other networks you connect to have their DHCP configured to allocate ip's to wireless clients thru the AP's (seperate scopes just for wireless\wired clients).

2 your wireless client is having to do a dhcp search through the AP that you're using, it may be worth seeing if you can find a way of putting a relay agent in there pointing to the DHCP server and that should speed up the connectivity.

Just as a matter of interest, when you aren't getting an address are you being assigned an APIPA address instead (169.254.*.*)??

 

[5jgibbs]

Yes, i get a ip of someting like that when it wont get the DHCP.. what kind of relay agent are you thinking of.. ??

Its a very small network..

 

[SimonDavies]

How big is your scope? The APIPA address is used when it can't find a DHCP server to get an address from, if you are sometimes getting addresses then I am beginning to wonder if your scope is getting full and not releasing addresses and only allocating them when free.

Can you have a look at your DHCP event log and see if there is anything in there?

Forget my comment about the agent.

By the way is your AP also on the same network address range?

 

[5jgibbs]

well.. the size of the scope is not the problem because i have over 200 addresses avalibal lol.. anyway.. i figured out the problem.. idk what i did.. or how i did it.. but it just seams to work fine now.. but.. i wish i knew why..