PR55-48 Wont connect to wireless gateway

So we have tried several configurations and we are not able to connect the PR55-48 to our wirless gateway.

Currently In working in PepsiCo leading this high scalability project, so any help would be appreciated in order to avoid project impacts.

If possible we would like to get in a call with a tech support tomorrow at earliest NCDIO convinience.

Which device is the PR55-48? Do you mean PR55-4B? And which gateway?