Moving MX-200 IP Address On Trapeze Wireless Network

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We have moved the IP address of our MX-200 [long story]

 

Now what we find is that the wireless network is visible to all laptops and other wireless enabled devices [good so far] The wireless network will authenticate logon requests from students [so I know that the wireless network is working] but will not authenticate staff logons [staff are on the parent domain and students are on the child domain]

 

Before the IP move everything was working. The only changes we have made is the IP address of the MX and the shared secret password.

 

Can anyone tell me why this is not working for staff?

 

Note: The MX and all software controlling the wireless network sits on the child domain but I can't find any wireless GPO settings for staff on the parent domain.

 

It SHOULD be working now.