Hello alastair_long172,

I'm sorry to hear that you're having problems with the TL-WN725N WiFi dongle on the SIMATIC IOT2050. Here's some information and suggestions regarding your query:

• WiFi functionality via USB dongle is available on both the IOT2050 Basic and Advanced models. It's not a feature limited to the Advanced model.

• Unfortunately, the TL-WN725N seems to have detection issues. Instead, I recommend a WiFi adapter that's more compatible with Linux kernel drivers, such as the Edimax EW-7811Un. Please check this entry for more information about tested devices.

To get started with your WiFi Adapter follow these steps:

1. Plug the compatible WiFi adapter into a USB port on the IOT2050
2. Check if the adapter is recognized using 

   lsusb

3. Install additional drivers or firmware packages if necessary.
4. Configure the WiFi connection via Network Manager (nmtui) or manually through configuration files.
5. Restart the network service:

   systemctl restart networking

dmesg

BR