As you refer to 'web interface' and 'scenarios', I'm guessing you are using a Euclid. If so, Euclid's general guide says you can connect to a network with SSH or VNC instead of going through the web interface. I'll paste the details in below.
If you choose to start Euclid in a headless-mode, without a monitor, you can connect to Euclid using various ways, SSH, VNC, web-interface, we will go over the methods next.
1. Connecting to Euclid’s Hotspot
a. Using a laptop / mobile phone, search for new Wi-Fi networks
b. A new network (EUCLID_XX) should appear, connect to it
c. Now you can proceed to use Euclid’s Web-Interface, or connect to Euclid using VNC / SSH.
If Euclid is connected to a Monitor / Keyboard + mouse, you can use Ubuntu’s Wi-Fi-menu to connect to another Wireless network.
a. Click on the Wi-Fi-menu icon in the top corner of Ubuntu’s toolbar
b. Disconnect from the current (EUCLID_XX) network
c. Scan and choose a new network
Note: <Euclid’s IP> is 10.42.0.1 when connected to the Hotspot, For IP discovery visit Euclid’s Manual (1.7 – Euclid IP Discovery)
a. After connecting to Euclid’s hotspot, or connecting Euclid to a Network
b. Open your favorite SSH-Client (putty for example)
c. Connect to <Euclid’s IP>:22
d. The default username is euclid, and the default password is Euclid
a. Euclid comes with a running VNC-server on the default 5900 port.
b. Connect to <Euclid’s IP>:5900 through a VNC-viewer.