How to fix AnyConnect error: cannot confirm it is connected to your secure gateway.  The local network may not be trustworthy.  Please try another network

after a few day update macos catalina, i realize i have problem with anyconnect. everytime i try to connect, Cisci AnyConnect: Got an error like this:

AnyConnect cannot confirm it is connected to your secure gateway.  The local network may not be trustworthy.  Please try another network

after browsing and googling a few minute… i found solution in here

open terminal and do the following (you will need administrator rights on your Mac)

cd /opt/cisco/AnyConnect

sudo nano AnyConnectLocalPolicy.xml

Then edit the field for ExcludeMacNativeCertStore to "true"

<ExcludeMacNativeCertStore>true</ExcludeMacNativeCertStore>

^X  (control X to exit)
press Y to indicate that you want to save
press enter to accept the existing name

Quit AnyConnect and start it up again.  You will now receive a certificate warning with the option to continue and, if available, install the certificate.

and just that… my anyconnect error gone….