@Titkhra 

Hi, the current issue is that if the  RPi4 server and the client connected to the same Deco, the LAN access speed would be about 1gbps;

While if connecting to the different Deco units, the LAN access speed reduced to 200-250mbps, right?

Did you access the server on the local computer via LAN IP address?

Was the RPi4 server connected to the main Deco via Ethernet cable or by Wi-Fi?

Thank you very much and wait for your reply.

@Titkhra 

Thank you very much for the update.

I would like to forward your case to the senior engineers and at the same time, could you please help me check the following details:

1.As for the network topology, is it like:

ISP modem---main M4(wireless router mode)----network switches-- <cable>--laptop1 / RPi4 server

                                                      \---<Wi-Fi>----2nd M4---<cable>laptop2

@Titkhra 

Thank you very much for the update.

After checking with the senior engineers, if the two LAN devices are connected to the same Deco, at this moment, Deco would be like an Ethernet cable connecting these two devices together.So the LAN connection speed would be around 1G/s;

When they connected to different Deco units, the LAN communication would also be forwarded via wireless backhaul between the Deco nodes and there would be some Speed attenuation; The desired LAN connection speed between different Deco units would be similar to the Ethernet speed from the satellite Deco units;

So connecting the satellite Deco unit via Ethernet cable to the main Deco would be the suggestions to fix the current speed issue;