hi...the link in the answer above is not working, meanwhile you can also get help from this post . it helped me in getting my drivers up and running. http://driverrestore.com/how-to-download-epson-printer-drivers-windows-10/
i also had the same issue and the motherboard component wat at fault which i got replace, brought he new from here at ifixit and its working like a butter now
Go to Settings > Wi-Fi > Select your network from the list > Tap it then hit Forget. Check That your mobile operator is listed Ensure that you're at a location with Mobile Broadband/ Home Wireless Broadband coverage. You can check coverage at your address .You must be in a 4G Plus or 3G dual band coverage area to access the Mobile Broadband network. Ensure that your Mobile Broadband/ Home Wireless Broadband SIM card is activated On some devices having Wi-Fi and/ or Bluetooth activated can override a successful 'Cellular' connection to the internet. If you're able to, switch Wi-Fi and Bluetooth off on your computer/ tablet and try to access the internet via your Mobile Broadband /Home Wireless Broadband service. If you’ve tried all of the above and you still can’t connect to Wi-Fi, then further investigation is needed.