Hi,
I can browse internet from my lan side no issues. but when try to update the opnsense, ping from daignose section, download acl this couldnot connect to internet. the point is i am unable to connect to internet from opnsense portal.
Do you have any DNS servers defined on your firewall and can you ping an external url from the OPNsense konsole?
Thank you phoenix fixed. Removed the dns server and restarted the firewall.