I purchased BE550 to have benefit with its 2.5gb LAN.

but i'm getting only about 100~120mbps download speed when using wired LAN connection.

weird thing is I'm getting about 800mbps upload speed.

and getting 800mbps download speed on Wifi connection. so it's definitely not my ISP problem.

my previous router was also tplink router with 1gbps lan. I switched to my previous router, and it has no problem. it gives me 800mbps download speed.

It looks like BE550 router is somehow limiting my wired lan download speed to 120mpbs.

I tried multiple devices with ethernet port(Windows PC, Mac studio, Macbook, Playstation5) all devices was same low speed.

I tried reset my router multiple times. no luck.

I tried various ethernet cable. no luck.

I would like to know what could cause this problem.