06-29-2010 09:59 AM
New install with 3 AP541N's in a cluster. Two AP's are connected by an ESW-520-8P PoE switch and one on its own power adapter and a 3COM switch. I have set up a single SSID with WPA-AES encryption. I am connecting with HP 2740P tablets with Intel wireless cards. Clients can see and connect to the AP's but only some can get IP addesses from our Small Business Server 2003 DHCP server.
It's intermittent, some will get an IP and work for a while, while other can't. Then the ones that are working will drop and then none of the devices can get an IP. Then suddenly a few will start to work again. I have solid connectivity everywhere in the building but can't get an IP. Also, strangely, even when assigning a static IP I can not pass traffic, although it says I am connected with "5 bars" of signal strength.
Clients show up under Cluster>Sessions, but sometimes with really high counts of "Signal" and "Error Rate". However, even the clients with a "good" connection cannot get an IP.
Here is what I have tried:
I have exhausted all efforts in searching and trying based on my own experience, so any help the community can provide would be appreciated.
Thanks,
Derek
07-16-2010 11:08 PM
Hi Derek,
Have you considered using our Online Chat Support?
Cisco Online Chat Support provides live, real-time technical support for Cisco Small Business products through a web chat session with a Small Business Support Center engineer during local business hours
Note: Warranty Coverage is one year from the date of purchase.
Regards,
Cindy Toy
Cisco Small Business
Community Manager
07-23-2010 01:06 PM
I have the same problem and also tried everything in the post. Not working.
I tried chat, seems no one working.
07-24-2010 11:18 AM
Hi Elaine,
Did you call within the Online Chat time for your country? If so, tell me which country you live in so that I can see why they are not online during the times they are supposed to be.
Regards,
Cindy
Cindy Toy
Cisco Small Business
Support Community Manager
www.cisco.com/go/smallbizsupport
07-26-2010 06:32 AM
I have to correct myself. There is someone working on the chat and it just takes time to get hold of him. He is very experienced working out my issue. I am good to go now.
thanks cindy for quick response.
07-26-2010 08:46 AM
Forgot to follow up on this once I had gotten the problem resolved.
Turns out the 8 port ESW switch I was using for PoE to the access points had smart ports enabled by default, and port security was on as well. With the smart ports default configuration set to PC/IP Phone, it would only allow one computer to pull an IP at a time. Setting it to the Wireless Access Point role resolved the issue.
I guess I am used to having all security off by default, so I didn't think to look there.
07-28-2010 02:59 PM
Thanks, Derek, for sharing your solution. I'm sure it's valuable to others in the Community.
Stephanie Reaves
Small Business Technology Group
08-13-2010 09:00 AM
I am good to go with laptops in the domain, but for guest computer I have to set it to static ip to be able to connect to the AP. I just wonder a $50 wireless router can do the job why this $300 equipment can not. Is there anything I am missing. I double check the admin manual, but can not find anywhere says DHCP for clients. It only mentions DHCP in lan setting for itself. Currently I have only one vlan setup with static IP in the network.
can someone help out? Thanks
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