I have been handed this one and have no idea where to go next.
In a nutshell...I will add more later...have to run to the site now....
Business with about 10 stations, 1 W2K server(basically used as a data server), none domain. One wireless router and one wireless ISP connection. Internet was intermitent so I have replaced the original ISP (DSL) and router with a new router and the wireless ISP connection. Worked great for about a day or two then dropping again. I updated the firmware on the router and it reset to factory defaults and away we went! It did change their subnet from 192.168.2.0 to 192.168.0.0 but I changed the static printers and all was well.
I get a call this morning that the internet is down again! I check and see that the stations have all got a local ip address on the 192.168.0.0 network and the router has a WAN address from the ISP. The ISP wireless router has all the lights on it....yet I cannot access the internet from a station.