Exclamation mark point issues on WiFi symbol on Top Menu Renew or Get a new DHCP Lease address that refreshes or creates a new connection with a new ipv4 address, Subnet Mask and Router. Follow the below steps to fix if your Mac is Dropping or Unable connect WiFi network. Go to the Apple Menu on Mac.

5 Common MacBook Pro Wi-Fi Problems (And How to Fix Them) Aug 05, 2019 Mac Catalina Wi-Fi Problems, Fix - macReports Oct 28, 2019 Solved: MacBook connects to Wi-Fi but has no Internet Apr 01, 2020 Mac keeps losing internet connection - Re… - Apple Community

Fixing this issue will involve putting your Mac into Recovery Mode and choosing the correct startup disk (which is likely to be your Macintosh HD, unless you want to boot from an external drive).

Sep 24, 2017 How to Fix Zoom Meeting Issues on Mac with Stable Internet Mar 19, 2020

Internet and WiFi Support and Help Center | Optimum

How to Troubleshoot Internet Connection Issues | Frontier.com Help Center Internet Internet TroubleshootingTroubleshoot Internet Issues . Back Troubleshoot Internet Issues. If you're having trouble connecting to the internet, try these tools and tips. Should you reboot? If you have no connection, check to see if there is a service outage in … Mac troubleshooting: What to do when your computer is too Test all your Macs: If you have more than one Mac, test the Internet speed on all of them. If the slowdown occurs on only one machine, the problem most likely originates with that Mac. Mac not loading certain websites? - Apple Community