D-Link Wireless Access Points For Business > DWL-3600AP
Clients not recieving DHCP lease "Failed to obtain IP address".
Evilbones76:
Hello,
We have a DWC 1000 wireless controller, and multiple 3600 AP boxes, on our Windows Sever 2012 based network. The AP boxes are "managed" by the WC, they have the same AP profiles set via the WC. We have a separate W2012 server providing DHCP for our LAN.
Clients can get a DHCP lease when connecting via a wired connection.
Clients can connect to the wireless when we assign a static IP address.
Clients connect to the wireless network (e.g, I put in the SSID password and it says "connected buy no internet access") but receive a .169 APIPA IP address.
I have no idea why this is happening. It appears as if something is stopping the DHCP server from sending a DHCP lease to the clients via the DWL 3600 AP.
Any ideas?
Thanks
FurryNutz:
I would review the user manual to see if there are any settings regarding DHCP relay or DHCP Forwarding services that need to be configured on the DWL if this model supports any of these features. Some APs have there own DHCP server which may need to be disabled if your trying to get DHCP IPs from a different source.
Evilbones76:
--- Quote from: FurryNutz on February 19, 2018, 10:02:58 AM ---I would review the user manual to see if there are any settings regarding DHCP relay or DHCP Forwarding services that need to be configured on the DWL if this model supports any of these features. Some APs have there own DHCP server which may need to be disabled if your trying to get DHCP IPs from a different source.
--- End quote ---
Hello FurryNutz (lol),
Sorry not gotten back to you sooner - been waiting for a DWC - 1000 RMA. I have this setup now, all of my APs (all 40 of them) are connected and working. The WiFi network seems to be running optimally in terms of throughput.
So, the final issue is that non-statically assigned devices cannot get a DHCP lease from our DHCP server. Computer units can get a DHCP lease, so there is no problem with our server/client setup. The DHCP setting on the wireless controllers are disabled, and there does not seem to be any apparent setting thats needs to be enabled or disabled to allow DHCP requests to tunnel through the the DHCP server. All DWL - 3600 AP devices are running in "managed" mode, in that they receive their SSID profile from the wireless controllers.
Note: Non-statically enabled devices - that is devices that have not had a static IP address assigned - can connect to the wireless network, they just get a 169. IP addresses.
Any ideas?
Thanks for your help
FurryNutz:
You'll need to make sure your server is configured correctly. I would check any scope configurations, any MAC handling filters that may prevent clients from getting a IP address, check any DHCP relay configurations as well. Seems like a DHCP service or configuration issue.
Evilbones76:
--- Quote from: FurryNutz on March 08, 2018, 10:08:16 AM ---You'll need to make sure your server is configured correctly. I would check any scope configurations, any MAC handling filters that may prevent clients from getting a IP address, check any DHCP relay configurations as well. Seems like a DHCP service or configuration issue.
--- End quote ---
Hi Furry,
Clients can connect via Ethernet just fine, and receive a full lease from the DHCP server. All scope settings are correct. WiFi clients do not receive a lease from our DHCP server when MAC address filtering is not turned off or on. I have fully checked the DHCP server, the logs everything is setup correctly.
The only thing I can think of, is getting Wireshark on one of the mobile devices and check the packets to see what stage of the process is failing?
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