no internet access from a windoes 7 pc with SEP 12.1 RU2

Prior to joining a domain, there was full internet access with the SEP 12.1 Ru2 installed.

after joining the domain, reboot, no internet acess shown on the system notification for the local area network icon

tried allowing port 80, 8080, still no luck. pinging the internet network and access domain file share was no problem.

surfing the internet or pinging external host goes no where despite ip resoluation done