Thanks to both for comments.
Should have been clearer - the second router had an SSID already present. It is this which is the second one being broadcast in addition to the SSID I set up - def not a neighbour.
I will try different combinations of DNS to see what happens. ISP is Zen.
Yes I am using Router Stats to see what is going on....sort of.
I have not left the new router connected for any length of time because I was/am rather wary of the the apparent second SSID so not sure of the disconnect issue with the "new" router.
I think I may have to chat with the Zen guys again.
Edited by magosa (Sun 10-Jun-12 18:32:01)