... or at least the URL gets refreshed back to just 192.168.1.125 immediately after submitting the data!
The issue is after you submit a form, if you then click on your browser URL and hit enter it will RE SUBMIT the data, which seems a little un tiddy and is unlike other web config devices, such as changing settings on routers.
You can send back an HTTP response that redirects the browser to a different page (an HTTP redirect) or you can send back a web page with a 'meta redirect' tag in it which causes the browser to display it and then immediately download the target of the redirect tag. Either way would cause the browser to end up displaying the final page without the form request parameters.
Your question is, basically, "How do I get my project working?"
Your right, I should have placed this under project guidance, as I was after a conceptual answer and not a specific programming answer. Code was not posted as the sketch sits at 78KB, way over the limit of posting the program.
PeterH:
You can send back an HTTP response that redirects the browser to a different page (an HTTP redirect) or you can send back a web page with a 'meta redirect' tag in it which causes the browser to display it and then immediately download the target of the redirect tag. Either way would cause the browser to end up displaying the final page without the form request parameters.
Thank you very much, I will look into these 2 possible solutions and pick the easiest to implement