Sql Connection Configuration Issues

Symptoms

Agility (or background) throws exception to event log that system is unable to connect fastNet database., but user can connect to SQL instance with SQL management studio

Investigation Procedure

Ensure system configuration:

1. Check SystemName in web.config and in sxpBacground.exe.config files.
2. Ensure windows registry setup (for standard and Wow6432Node):
   • HKEY_LOCAL_MACHINE\SOFTWARE\SoftSolutions\SXP\SystemName
   • HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\SoftSolutions\SXP\SystemName
3. Validate SystemConfigFilePath from registry with physical file path.
4. Validate ConnectionString in configuration file.
5. Ensure that firewall do not block sqlserver ports (on all machines with: agility service, background, sqlserver).
6. If Data Source in connection string uses named instance check if additional port for SqlServerBrowser is opened (port 1434).

http://dba.stackexchange.com/questions/133203/does-udp-port-1434-need-to-be-open-for-named-instances-with-static-tcp