CN seems to think I'm on the same network as the nation I'm warring with and won't let me spy on them. This is when I'm on my home wifi, so unless my wife or kids are secretly playing CN, this seems very unlikely.
My nation: https://www.cybernations.net/nation_drill_display.asp?Nation_ID=591299
Other nation: https://www.cybernations.net/nation_drill_display.asp?Nation_ID=49861