GS324 not transmitting signal

[Richterlax]

I bought a GS324, plugged in the main internet line and then the 20 other Ethernet cords running through the house. The one to the main router is working but none of the other connections are

[schumaku]

Are thee fully standard compliant cables, correct pairs, four pairs/eight strands - or do we face some cable saver configurations with just to pairs? 

By far not everything with a RJ45 connector at the end can run Ethernet or Gigabit Ethernet.