In my apartment we have an old LAN network where every room is reached by ONE ethernet cable that splits in 2 ethernet ports, the same happens to the hub where 6 cables arrive (one from each room) and each splits into 2 ethernet ports.
There are two problems from this:
- Only one of the 2 ports is working for each cable
- The connection is slow, it looks like it's maxing out the bandwidth of each cable
50Mb/s through cable connection, >300Mb/s if connected directly to the modem or via wifi (where the wifi signal is strong enough).
From my basic understanding of networking, the cables have been hard split (I can see it in the hub and disassembling the ports sockets in the rooms), to allow more devices on the same cable, but modern hardware is not able to recognise this automatically, hence only one of the ports is working and moreover the split cables have limited bandwidth.
My question is:
Can I rejoin the split cables using a LAN splitter like this splitter?
Or do I have rewire manually the cables to one port instead of 2?
Doing so would I be able to achieve Gigabit ethernet (with a gigabit router)?