Hello!

I've had similar post before with no usable answers so Im trying again.

My 5 pieces M4 setup is now working in access point mode (huge improvement over router mode for overall satisfaction minus router exclusive options) and internet speeds are great. 

I got 1 Gbit internet speed fibre optics modem-----1gbit switch-------M4

                                                                                                  -------M4

                                                                                                 -------M4-----fast desktop

                                                                                                 -------M4

                                                                                                 -------M4-----fast desktop

5G mobile phones and fast laptops close to nodes get 850 mbits, which I consider great, desktops on cable get 950 mbits, all low latency.

Problem is LAN transfer, its really slow.

All units have strong cpu, ram and are ssd only, cable connected, all lan connections are valid. Transfer between them goes 10-20(mostly)-120 mbit(almost never).

Why?

I undeerstand that switch should split speed but not that much. Its not randomly, all devices struggle with mutual transfer and show high speed internet connection.

Any thoughts? Tnx!