PC use DNS google, client can't resolve domain name.

  • Dear,
      My PC use DNS google is so it can't access internet. I can't ping google.com but I can ping is ok.
      I had create rule "Lan address" access  to any with any port. It's not ok.
      - A strange thing, when I use dns of AD internal address, the client access internet is ok. Thanks for any thing idea.