Slow upload speed for AX-3000
I just started my new AX-3000 router last night and did some speed test with my old TP-link router bought more than 5 years ago before switching to the new one.
With 5G wireless on AX-3000, the download and upload speed for connecting to local server seems to be improved from ~30 Mbps and ~80Mps respectively to ~90 Mbps for both upload and download which is close to the level of directly pluggin in LAN.
However when connecting to foreign server, say US, the speed fluctuates a lot and is not better off then my previous antique router.
Old router: Down - 49 Mbps, Up - 95 Mbps, ping: 202ms
LAN in: Down - 62 Mbps, Up - 91 Mbps, ping; 191ms
New router wireless 5G (max signal): Down - 48 Mbps, Up - 6Mbps, ping: 196ms
After firmware update, wireless 5G: Down - 48 Mbps (on average, it managed to hit 73 on the first try but never again in the next 4-5 tries) Up - 18Mbps (on average again, it ranged from 14 to 30)
Anyone know any solution to this? I did all of the router config by selecting "auto-detect", did not adjust anything except changing 5G wifi channel to "auto" - which produced no change in test results
Edit: using 2.4G wireless, the result is at almost the same level for local server except upload reduced to ~80Mps. For foreign US server, result is very similar with 5G (Down - 45 Mbps, Up - 19 Mbps). So this reduce in upload speed issue seems to be across 2.4 and 5G wireless