Hi,
Thank you for participating in the Cisco Small Business Community. My name is Nico Muselle from Cisco Sofia STAC and I'll be glad to assist you with this problem.
What exactly is it you are experiencing when configuring the ESW through the web interface ? Please make sure that when you apply any changes through the GUI that you save the configuration afterwards. This is a common thing that is often forgotten. It's also a good idea to use either CCA or the web interface at any one time to configure the switch but not use them at the same time.
Please let me know what exactly the issue is so we can solve this problem for you.
Best regards,
Nico Muselle
Sr. Network Engineer - CCNA