WRT54GC - Does the DHCP Server really work?

Hi everyone,
Im new to this forum so i dont know if this problem has been discussed before and is there any solution to it.
I own a WRT54GC since January 2007 and have had no problems since then, but recently I found out some issues about the DHCP server on this unit:
This is what i have on the network for you guys to understand my network setup:
Cogeco Cable Modem for the internet (Im located in Canada), Linksys WRT54GC router, One Trendnet File/Print Server for my USB all in one Lexmark printer, and external hard drive, and an Acer laptop.
The network works perfectly (wireless internet, wired internet, printing, file transfer) except for the following DHCP issue:
DHCP server does not update the IP address of my laptop even if in the router settings i assign 5 mins or any minuites to the lease time of the IP address and I keep my laptop on and connected to the router either wireless or wired.
The router has been enabled for DHCP and can assign the IP address automatically to my laptop upon powerup. I also have allocated 6 users for DHCP and starting IP at 192.168.1.101 which means that the range is from 192.168.1.101 to 192.168.1.106
When I check who's connected to the network, I see that my lap is connected to it and the expiry of the lease time is given. I can also see that if the lease time is set to 5mins then it down counts until zero and it defaults to some wiered number after the time is over and doesnt change the IP address of my laptop. Looks like a bug in the DHCP server software. The above was tried when using the wireless connection.
When I connected the laptop using the ethernet cable to the router (wired connection) a somewhat similar behaviour but instead if I set a lease time of 5mins or any other mins, the server does not recognize this and defaults it to a lease time of a day (similar to setting 0).
I have configured my laptop for DHCP so I dont think there is anything wrong with my laptop but I do feel that the DHCP server on this WRT54GC is working abnormally.
Any suggestions?......Try it out first and see if you have the same problem.
If you dont than i will be glad if you could tell me how you were able to make it work!
Cheers.
(Edited post for guideline compliance. Thanks!)
Message Edited by JOHNDOE_06 on 10-08-2007 11:26 AM

Thanks for your reply. Im not looking forward to change my IP address every 5 mins. My question is more related the functional behaviour of the DHCP server. With all the proper settings (and I belive I have done the settings correctly), the DHCP server should update the IP addresses of any computer on the network after the lease period ends and provided the computer was on for the time the lease period is valid and not shut off. Even if I use the default lease setting of a day, it still does not change the IP address if I keep my laptop on for more than a day or so. I feel that the DHCP server is not functioning as it should. I dont really need to change my IP address and Im happy if it doesnt change, but I came across the abnormal behaviour when I was going through the setup. I just thought I should try to see how the DHCP server on this unit works and to see that it was not working as it should I thought I should ask someone on the community forum to see if this is really a normal behaviour or has linksys distributed a faulty product. My network works fine and Im the only user so Im not concerned about security. Im using WEP. To answer your other questions: There is no specific reason as to why I chose to limit DHCP to 6. I think 6 is good enough for me and as no one else is using my network I think 6 is an enough number for DHCP server to assign an unused IP address to my laptop after the lease period expires. I believe I dont need 50. The reason why I used 5 mins as lease time is because I wanted to test the DHCP server. 5 mins is short and I can wait and monitor to see if my IP address gets updated. Waiting for a day will be overkill for the simple test. Did you try it on your router? I'd be interested to know how it worked for you if it really worked. Thanks for you help!

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