TAG_NONE/409 CONNECT - Squid 3.5.20

Hello,

I setup a squid as transparent proxy on CentOS7. I setup squid with IPtables with NAT and now if want to setup internet by setting up a proxy setting on browser from client internet is not working and i am getting "TAG_NONE/409 4347 CONNECT www.google.com:443 - HIER_NONE/- text/html" error in /var/log/squid/access.log.

But without proxy setting in browser internet is working fine. While googling in found to setup dns_v4_first on in squid.conf but still the same issue.

Can you please help me to figure out this issue.

---------- Post updated at 01:56 PM ---------- Previous update was at 12:00 AM ----------

I also verified that port 3128 is open on gateway.