Netflix channel working very slow after update

Ok through the below steps on your router and after that your issue will get solved:
On browser type: IP address to access router's administration console.
Now while doing this you will prompt to enter the password to access network settings.
Look for the DNS server settings are specified.
Type IP address for Primary and secondary DNS servers as specified below:
Google IP addresses: 8.8.8.8 and 8.8.4.4.
Now once you fished this save the setting and restart the browser.