Fresh install as of yesterday, no mods installed.
According to the wiki information about the various communication devices with a lvl 2 tracking station and the communotron 16-s should have more than enough range to reach the relay, those relays have 3 HG5s mounted and deployed (checked) which should give them coverage over the entire kerbin system... and yet.. no relay link back to ksc (additional relays stations are turned off).
Am I missing something or did they break the relay network recently? (if so, great return to the game... )