Hi friend!
B310As-938 is a Consumer product.
If you can't access the modem's web-based management:
Ensure that your computer is connected to the router through an Ethernet cable or Wi-Fi.
Ensure that your computer is set to obtain an IP address and DNS server address automatically.
Restart your browser or try using another browser.
If the problem persists, restore the router to its factory settings.
Hopes this helps!