Hi there! That's an odd one, @barryg27, and it might require you to have the phone replaced (since it seems that you just got the S23 FE recently), just in case the steps I recommend don't resolve this for you.
The first step to try would be a soft reset on your S23 FE. This doesn't erase any data but it tends to solve most connectivity issues by giving your software a fresh start.
To do this, press your Power and Volume Down keys together until you see the Samsung logo. I then recommend testing the function of your phone's Wi-Fi by performing a hardware test. To do this, please head to the Support section of the Members app > Select 'View tests' underneath the Phone diagnostics heading > Wi-Fi. If the test shows your phone's Wi-Fi is functioning normally, this would indicate an issue that the Internet Service Provider can investigate and resolve.
However, if you are still and only experiencing an issue connecting to Wi-Fi on your S23 FE, the comprehensive guide below (from our colleagues at Samsung Africa) contains a series of steps to get you connected again:
I would recommend working through each of the steps systematically, as the first couple of steps may be sufficient to ensure that you can connect to Wi-Fi again. Please only perform the Factory reset as a last resort.
Please let me know if this helps.
