Cannot connect to the Internet: macOS Catalina

Question

I am using a MacBook Pro (15-inch, 2017) with macOS 10.15.4 Beta (19E258a). I cannot connect to any Wi-Fi network.

I ran a complete scan of my disk with the antivirus program 'Virus Scanner Plus' and removed all malware. Then I tried booting in safe mode, and the ping command, to this result:

tommy@MACBP-5 ~ % ping google.com
ping: cannot resolve google.com: Unknown host

Please help me connect to my Wi-Fi.

EDIT1: I tried all the methods suggested by @ParthShah: 1. Updating my laptop's software: Couldn't check for updates. 2. Disabling Wi-Fi then enabling it: Didn't work. 3. Restarting my modem and router: Didn't work. 4. Restarting my laptop and booting into Safe Mode: Didn't work. 5. Creating a new network location: Didn't work. Also, I tried the ping command again, which yielded the same result as above.

EDIT2: I can check for software updates via System Preferences (i.e. connecting to the Apple Software Update Server (swscan.apple.com)), but nothing except that.

EDIT3: @GordonDavisson, I can connect to the Wi-Fi network, but I can't connect to the Internet. (I have edited the title of the question according to this.) The system interface shows the info of the network, like so: And 'iStat Menus 6' shows the information, too:

But, I can't connect to the Internet. This issue is with my MacBook Pro only; My Surface Laptop i7 can connect to the Internet perfectly well.

EDIT4: @GordonDavisson

tommy@MACBP-5 ~ % cat /etc/resolv.conf
#
# macOS Notice
#
# This file is not consulted for DNS hostname resolution, address
# resolution, or the DNS query routing mechanism used by most
# processes on this system.
#
# To view the DNS configuration used by this system, use:
#   scutil --dns
#
# SEE ALSO
#   dns-sd(1), scutil(8)
#
# This file is automatically generated.
#
nameserver 10.100.0.1

EDIT5: @GordonDavisson

tommy@MACBP-5 ~ % scutil --dns
DNS configuration

resolver #1
  nameserver[0] : 10.100.0.1
  if_index : 15 (utun1)
  flags    : Supplemental, Request A records
  reach    : 0x00000027 (Reachable,Transient Connection,Connection Required,Automatic Connection On Demand)
  order    : 101600

resolver #2
  nameserver[0] : 10.100.0.1
  if_index : 15 (utun1)
  flags    : Request A records
  reach    : 0x00000027 (Reachable,Transient Connection,Connection Required,Automatic Connection On Demand)
  order    : 200000

resolver #3
  domain   : local
  options  : mdns
  timeout  : 5
  flags    : Request A records
  reach    : 0x00000000 (Not Reachable)
  order    : 300000

resolver #4
  domain   : 254.169.in-addr.arpa
  options  : mdns
  timeout  : 5
  flags    : Request A records
  reach    : 0x00000000 (Not Reachable)
  order    : 300200

resolver #5
  domain   : 8.e.f.ip6.arpa
  options  : mdns
  timeout  : 5
  flags    : Request A records
  reach    : 0x00000000 (Not Reachable)
  order    : 300400

resolver #6
  domain   : 9.e.f.ip6.arpa
  options  : mdns
  timeout  : 5
  flags    : Request A records
  reach    : 0x00000000 (Not Reachable)
  order    : 300600

resolver #7
  domain   : a.e.f.ip6.arpa
  options  : mdns
  timeout  : 5
  flags    : Request A records
  reach    : 0x00000000 (Not Reachable)
  order    : 300800

resolver #8
  domain   : b.e.f.ip6.arpa
  options  : mdns
  timeout  : 5
  flags    : Request A records
  reach    : 0x00000000 (Not Reachable)
  order    : 301000

DNS configuration (for scoped queries)

resolver #1
  search domain[0] : kornet
  nameserver[0] : 192.168.1.1
  if_index : 5 (en0)
  flags    : Scoped, Request A records
  reach    : 0x00020002 (Reachable,Directly Reachable Address)

resolver #2
  nameserver[0] : 10.100.0.1
  if_index : 15 (utun1)
  flags    : Scoped, Request A records
  reach    : 0x00000027 (Reachable,Transient Connection,Connection Required,Automatic Connection On Demand)

EDIT6: @GordonDavisson

EDIT7: @GordonDavisson ANSWER FOUND! The VPN was causing it. (The service 'VPN Unlimited')

Answer 1

1. Update your Mac if there is an update available. You can check that by going to the Apple menu > About This Mac > Software Update.

2. Disable Wi-Fi (you can do so by clicking the Wi-Fi icon and selecting ‘Turn Wi-Fi Off’ in the menu bar) and wait a few seconds and then re-enable it.

3. Restart everything:

   • Restart your Mac by going to the Apple menu and Restart
     Restart your modem and router

4. Create a new network location

   • On your Mac, click the Apple menu
     
   • Click System Preferences
     
   • Click Network
     
   • Click the Location drop-down menu (This says Automatic unless you changed it before)
     
   • Click Edit Locations
     
   • Click the plus (+) sign to add a new location
     
   • Rename the new location if you want
     
   • Click Done And click Apply (Network pane).
     

   Now try to test if your Internet problem is resolved.

Check the link for more details: https://macreports.com/mac-catalina-wi-fi-problems-fix/