I have two web applications, web1.myfarm.com and web2.myfarm.com. An AD security group "Domain\Farm_Users" is granted access on both of the web applications. The group members in "Domain\Farm_Users" were able to access the sites for both web applications.
Now i am facing an issue that group members can access web2.myfarm.com with same "Domain\Farm_Users" group but not web1.myfarm.com. They get access denied error while accessing the web1.