Slow wired connection to Raspberry Pi

Ngoc Pham

Hi,

I just got my AmpliFi HD Router and it's been very nice so far (a day). However, I noticed that wired connection to my Raspberry Pi (3B model) is significantly slower than with my old Netgear router.

This is the speed with AmpliFi

pi@rpi ~ %  speedtest
Retrieving speedtest.net configuration...
Retrieving speedtest.net server list...
Selecting best server based on ping... 17.788 ms
Testing download speed.....
Download: 36.65 Mbit/s     
Testing upload speed.......
Upload: 11.68 Mbit/s

And this is the speed with the old router.

pi@rpi ~ %  speedtest
Retrieving speedtest.net configuration...
Retrieving speedtest.net server list...
Selecting best server based on ping... 70.054 ms
Testing download speed.....
Download: 92.87 Mbit/s
Testing upload speed.......
Upload: 11.65 Mbit/s

I have tried to use ethernet with my laptop on that same port, but laptop still can do ~120Mbps using either fast.com, or speedtest.net (that's also my Internet speed), so the issue is narrowed down to the router and the Raspberry Pi in particular. I also tried turning on Hardware NAT, and it didn't help.

Can some one please shed some light over this issue? It's very strange to me.

Thanks!