@Bananafish what's the point of roaming if both are to be seen as different networks? They are not. They are using the same portal and voucher management. The same device is seen by the controller as valid and authenticated. If the device authenticates with another code (ie. client purchases a new one), another authorization is recorded making it redundant. As such, it is wasteful to both client and business.

@Doods 

You cant roam between wlan group without reauthorization, but this should be a easy task to fix. 

create one wlan grup with your ssid

WiFi_shop and WiFi_other and then use SSID override on specific access point that ned its own SSID

override wifi_other to wifi_otherA and so on.

if there is not hundreds of access Pont this is pretty fast to do.

override is done on access point config and WLANs

@Doods 

Yaah you can send a wish list to TP-LINK and in the meantime your guests can log on to the portal every time they roam between a wlan group if you are not looking for a solution.

The controller looks at wlan groups as a separate network, therefore it is so, but maybe @Fae  or other in TP-LINK can explain this better than I can.