Solution:-

Internet Explorer

Open Toolbar:-

Tools → Internet Options → Privacy → Advanced 

Set:-

            First Party Cookies → Accept

            Third Party Cookies → Accept

            Always allow session cookies → Check

Mozilla Firefox

Open Toolbar:-

Tools → Options → Privacy → Settings

Set:-

            Cookies → Check

            Cache → Check

            Authenticated Sessions → Check

Open Toolbar:-

Tools → Options → Privacy → Cookies 

Set:-

            Allow sites to set cookies → Check