On Windows 2008 R2, the windows firewall will turn on by default which causes connection issure for the remote client, here is a script which can turn off the firewall for all SQL Server default port. if there is a named instance, the script should be modified based on the correct setting.

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@echo off
@echo This scripts sets the default firewall configurations for sql server components
echo.
echo Setting the core components for a database instance
echo Default Instance
netsh advfirewall firewall add rule name="SQLServer" dir=in action=allow protocol=TCP localport=1433 profile=DOMAIN
echo Dedicated Admin Connection
netsh advfirewall firewall add rule name="SQL DAC" dir=in action=allow protocol=TCP localport=1434 profile=DOMAIN
echo SQL Browser Service
netsh advfirewall firewall add rule name="SQL Browser" dir=in action=allow protocol=UDP localport=1434 profile=DOMAIN
echo Setting the core firewall rules for database mirroring, Service Broker, TSQL Debugger, Analysis services, Reporting Services
echo Mirroring EndPoint - Change Port Number as needed depending on which role
netsh advfirewall firewall add rule name="Mirroring EndPoint" dir=in action=allow protocol=TCP localport=5022 profile=DOMAIN
echo Service Broker
netsh advfirewall firewall add rule name="SQL Service Broker" dir=in action=allow protocol=TCP localport=4022 profile=DOMAIN
echo Enable TSQL Debugger (uses RPC)
netsh advfirewall firewall add rule name="T-SQL Debugger" dir=in action=allow protocol=TCP localport=135 profile=DOMAIN
echo Browser service for Analysis Service
netsh advfirewall firewall add rule name="SQL Browser for Analysis Service" dir=in action=allow protocol=TCP localport=2382 profile=DOMAIN
echo Browser service for Analysis Service
netsh advfirewall firewall add rule name="SQL Browser for Analysis Service" dir=in action=allow protocol=TCP localport=2382 profile=DOMAIN
echo Analysis Service Default
netsh advfirewall firewall add rule name="Analysis Service" dir=in action=allow protocol=TCP localport=2383 profile=DOMAIN
echo HTTP/HTTPS for the reporting services
netsh advfirewall firewall add rule name="HTTP Reporting Services" dir=in action=allow protocol=TCP localport=80 profile=DOMAIN
netsh advfirewall firewall add rule name="HTTPS Reporting Services" dir=in action=allow protocol=TCP localport=443 profile=DOMAIN

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