Avast disrupting internet connection

So, I installed the free version of Avast because I was having problems with malware. It got rid of the issues. Impressed, I purchased the program. However, just as soon as I purchased it, I cannot connect to my internet. My internet connection is on a wifi network. It connects to the wifi network but shows limited connectivity. I then disabled all the avast shields and disabled the start up services for avast, and then restarted the laptop. The connections seems to work now. But, I want to get it to work with the internet. Can someone guide me on the correct steps to configure Avast.

Sorry you’re having a problem.
Step one, Enable all of the services except the firewall.
If that solves the problem, then make sure your home Wifi is set as a trusted network.
You can learn more about the Avast firewall and it’s settings at:
https://www.avast.com/en-eu/faq.php?article=AVKB25