You may want to review some of the troubleshooting steps found in the article below.
Hope that helps,
Griff W, thanks for your reply but I have trawled though these and other troubleshooting guides without success - did help in resolving some intermed issues such as the dae and time wouldn't set after I reset the unit but hasn't fixed the fundamental problem with connecting via wifi. Our Ethernet connection isn't located in the room where we want to use the apple tv so useless without functioning wifif.
Any other tips greatfully received.