Hi, It is maybe better to open a new thread if I can help anyone having the same problem. Would Shibby or Toastman builds block port 1433 (Microsoft SQL Server) in a LAN environment? Or maybe if I ask the question in a different way, would a router block any LAN ports? (not from outside, just inside ports) which affects connection to a network resource? Because I can connect to my SQL server when using 1.28 Tomato Firmware whereas when I plug the router with the Shibby or Toastman builds and restart the server, it stops working. In all cases I do not touch any configuration in the server! Server has static IP Address in both cases Any help is appreciated as I am about to go crazy over this.