The Asus BE6500 has a maximum bandwidth of 100Mbps.
The Asus BE6500 has a maximum bandwidth of 100Mbps.
Someone explained that the Asus BE6500 caps my LAN speed at 90 Mbps instead of the expected 600 Mbps. You're using a Cat6 cable, which should support higher speeds with older routers. In the Asus panel, LAN is listed as yellow (100 Mbps limit) and WAN is green (1 Gbps), but it seems the actual throughput is lower due to configuration or driver issues.
Based on my observations, the issue often lies with the cable. Have you experimented with a different one? Or, have you reconnected this at both ends? Perhaps the drivers need updating. It might also help to separate the cable from nearby mains wires if they're close together.
Thanks for the update after testing various cables. It looks like reconnecting the cable from the PC resolved the problem. I’m not sure what caused the original issue with the connection. I noticed it after trying the PC end to the laptop, which showed 600mbps right away. That’s a relief—no need to rush buying another 20m/65ft cable and putting it back in the tray.