Here is a short background thread on this system if you are curious.

Anyway, I have a TPMC-4XG that is not connecting to the WiFi. It is likely that the local access point SSID has been reset (It's showing its default SSID). Since I don't have access to the original Crestron programming (defunct dealer), is there a way that I can interrogate the TPMC-4XG and find the expected SSID or can I change the SSID directly, using a hidden menu? I am also not ruling out a defective TPMC-4XG since I think that I know and have tried all of the likely SSID's.

This is not a WiFi password issue -- nothing has a password. (I know, I know, it's not my system) This is not a weak signal issue because there is an access point in this room. I suspect that the original installer was struggling with WiFi connectivity because there are access points in odd locations

By the way, there are three of these controllers in the system, two are working, but I am seeing too many screen refreshes on all of them. The battery run time is not very good -- well under an hour. Do these controllers become cranky, even when on the charger, as the battery ages? There are no reboots unless the battery completely discharges.

Do I need to worry about restricting the WiFi to 802.11b/g for these things?

I've never used one but is it possible to connect to it in toolbox? I would think toolbox would allow you to set SSID. If it's not on the network, connect it using the USB port.

I don't have access to Crestron configuration software. Is "toolbox" a Crestron feature or a  generic Windows CE feature that I can access?

-- time lapse --

Edit: Found the user manual on the Crestron site. Surprisingly, this can be a user setting.

Toolbox is Crestron software.

If you can get into the setup menu "its in the manual how to access this" you can then setup the WIFI of the remote. Since you don't have any passwords on the WIFI then you don't have to worry, but if you were to encrypt the WIFI the encryption has to be WEP and on 2.4.

To add to this, need to make sure the WAP is set to G or B ONLY!

Those remotes were a PITFA with WiFi when they were new, if you have network equipment that is more recent-like N or AC, the 4XG may not play nicely with it at all.