Hi guys Bit embarssed to ask this question as I have my network+ exam tomorrow! But I have a strange problem with my home network. Setup is this: Typical Wireless Broadband setup - Cable modem into wireless router - one wired client, two wireless clients. All configured statically with the DG pointing to the router and the DNS pointing to NTL's DNS servers. I have typical security on the router, WPA, Mac filtering etc. This works fine! However on my main machine (one of the wireless clients) I have two other connections i sometime link into my machine. One is a networked DVD player and one is a spare machine. Both I have connected directly into my machine via an RJ45 socket. Now exactly the same problem has resulted with both (only difference with the machine is I have setup ICS on my wireless connection) - every time the link is made - I lose my connection to the internet on my main machine!.... I can still connect to the router and ping other machines on the network but cannot ping or connect to any external sites by IP or host name. I am a bit baffled with this as I havent made any changes to my normal wireless connection - one moment the internet works - then I have to disable the new lan connection to access it again! Any help would be much appreciated!