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Apple Devices Getting Wrong Ip Address


Userlevel 1
Hi All,

I'm setting up an wifi network with internal captive portal (C25 controller and 3715 APs).

Everything it's working fine, except apple devices. They take so much time to connect to the SSID and obtains wrong IP Address. For example: the DHCP server delivers ip range 192.168.10.x and the apple devices get 192.168.1.x.

Has anyone ever experienced this ? Any idea ?

Thanks in advance!

8 replies

Userlevel 7
Is the 192.168.1.x from your network.
Check the role in the client/VNS report - did the client get the correct role.
Please attach a screenshot of the report.

What software version is running on the controller.
Userlevel 7
Ron wrote:

Is the 192.168.1.x from your network.
Check the role in the client/VNS report - did the client get the correct role.
Please attach a screenshot of the report.

What software version is running on the controller.

also who is the DHCP server, if the contoller provides the IP take a look into the GUI > logs > DHCP
I can't answer your question but I can say that in our network (4110 controller, 3700 and 3800 APs) Apple devices also take a long time to connect (authenticate and get an IP).
What type of DHCP server are you use (Microsoft, ISC, InfoBlox etc). Also, can you verify that you are getting the correct role? Maybe you are using RFC3580? Like Ronald asked, is that .1.x network from a DHCP scope and VLAN you manage? Are you sure someone hasn't plugged a linksys router into your network that's on the same VLAN wifi is using, and is now handing out IP addresses?
Jeremy Gibbs wrote:

What type of DHCP server are you use (Microsoft, ISC, InfoBlox etc). Also, can you verify that you are getting the correct role? Maybe you are using RFC3580? Like Ronald asked, is that .1.x network from a DHCP scope and VLAN you manage? Are you sure someone hasn't plugged a linksys router into your network that's on the same VLAN wifi is using, and is now handing out IP addresses?

using *
Userlevel 7
Hi Alex, do you still need assistance with this?
Userlevel 1
Drew C. wrote:

Hi Alex, do you still need assistance with this?

Hi Drew.
Problem solved.The problem was my internal DHCP.
Thanks!
Userlevel 7
Drew C. wrote:

Hi Alex, do you still need assistance with this?

Great! Any details you can share so that if someone else has the same problem they'll have some pointers to go on?

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