Losing connection to internet & having to drop lines on router before being able to re-establish connection
Posted on 2003-03-14
We have an ISDN connection to the internet and are using an ISDN router which is connected to a ISA server which is providing firewall protection for one PC which we use to connect to an SQL server in London so that we can create databases. The ISA server has 2 network cards, one connected to the router and one connected to the single PC and DHCP is disabled on both the router and the server and only static IP addresses are used. The router is set up to dialup 64kbps with the idle timeout at 180 secs. Our problem is that occasionally the PC will lose connection with the internet usually half way through the building of a SQL databse, thus I cannot see it being a timeout issue, and the only way to make any sort of connection is to go to the router control panel and manually drop the connected line (the connection is not dropped at the router) and once this is done we are able to re-establish the connection to the internet. Even when we have lost connection to SQL server and all other internet sites data is still being sent and received according to both the network connection monitor on the PC and on the router. The ISA server is wide open as I am only going to tighten it up once I am satisfied that the internet connection is reliable, and besides which the problem still occurred when I connected the PC directly to the router and bypassed the ISA server. Can anybody please help?