WIFI ok on some devices and not on others (Aironet 1830AP WLC/Mob.Exp)

[pdenableetoavit19698]

Hi all,

I have a group of Aironet 1830AP, running Mobility Express and one of them being the WLC.

Looks like all is working. The AP are all connected to one switch, and some computers are connected via ethernet to same switch.

Via Ethernet all works, pinging network devices, APs and internet

Via Wifi, pinging network devices and APs works from everywhere, but the internet only works from some of the devices, some pc, some laptops, but not all. 

What could cause this since it was working before. Am not aware of new changes done.

Thanks for any feedback...

[marce1000]

 - If it was working before it could be related to some  kind of resource exhaustion , for instance reboot an access point that gives problems for clients and or have a (global) restart of the Mobility Express controller ; also use latest recommended software version on it (always better) , make sure client wireless drivers are up to date (too) , 

 M.

[Rich R]

Do what Marce says but you really need to narrow down and reproduce the problem and work out what the commonality is.  If it's only clients on 1 AP then the maybe that switch port is missing one of the VLANs, or if it's all devices on a particular VLAN then maybe you do not have a valid default gateway or routing for that VLAN etc.  It could be any number of different things so you need to troubleshoot based on specific info.