QUOTE(khusyairi @ Oct 23 2023, 05:03 PM)
Why

?
I just need to know the issue why I cant get more than 600mbps (modem to router)? or old modem?
update 23rd October 2023
I changed the cabling with known good ones, including 1 flat cable that originally came with M9 Plus.
All resulting in packet loss if M9 Plus is plugged in middle between computer and switch.
No packet loss when it's only computer and switch with nothing in between.
Conclusion?
M9 Plus is experiencing packet loss.
Which invariably affect speedtest.
Can the M9 Plus be used for general day-to-day? Yes.
Can the M9 Plus be used with applications that are sensitive to packet loss? No.
Can the M9 Plus be involved in speedtesting? Unreliable.
https://community.tp-link.com/en/home/forum/topic/228236https://www.reddit.com/r/HomeNetworking/com...nstalling_deco/--
Original post 22nd October 2023
i have my M9 Plus in office.
I don't know what speed my office subscribed to, but I am guessing it's 800Mbps based on the consistent upload speed of 200Mbps.
Test direct connect laptop to office network.
CODE
# speedtest
Server: Telekom Malaysia Berhad - Seberang Jaya (id: 45623)
ISP: TM Net
Idle Latency: 6.50 ms (jitter: 0.12ms, low: 6.42ms, high: 6.66ms)
Download: 741.43 Mbps (data used: 1.2 GB)
5.13 ms (jitter: 2.19ms, low: 1.29ms, high: 12.39ms)
Upload: 211.96 Mbps (data used: 232.1 MB)
4.35 ms (jitter: 10.00ms, low: 3.30ms, high: 213.61ms)
Packet Loss: 0.0%
Result URL: https://www.speedtest.net/result/c/d310c40e-e84d-4bd0-9932-e0dfb5880c10
# speedtest
Idle Latency: 4.43 ms (jitter: 0.08ms, low: 4.29ms, high: 4.50ms)
Download: 707.70 Mbps (data used: 713.8 MB)
4.67 ms (jitter: 4.48ms, low: 1.36ms, high: 211.62ms)
Upload: 207.84 Mbps (data used: 210.6 MB)
4.53 ms (jitter: 11.07ms, low: 3.41ms, high: 216.99ms)
Packet Loss: 0.0%
Result URL: https://www.speedtest.net/result/c/bfea4024-d9e9-4405-96fe-9ca10cdd6115
# speedtest
Idle Latency: 4.31 ms (jitter: 0.21ms, low: 3.90ms, high: 4.53ms)
Download: 641.27 Mbps (data used: 809.0 MB)
6.76 ms (jitter: 4.38ms, low: 3.44ms, high: 215.27ms)
Upload: 209.11 Mbps (data used: 234.6 MB)
4.43 ms (jitter: 14.38ms, low: 3.31ms, high: 213.75ms)
Packet Loss: 0.0%
Result URL: https://www.speedtest.net/result/c/dc27108b-8030-4b90-a657-d066ca7261d4
Test with Deco cabled between laptop and office's network.
hm.... i just noticed the packet loss rate right before hitting submit to this post.
so i changed cable - still packet loss.
so i swapped the deco unit with another - still packet loss.
i guess i need to replace with 3rd cable tomorrow just to be sure it isn't due to bad batch.
CODE
# speedtest
Server: Telekom Malaysia Berhad - Seberang Jaya (id: 45623)
ISP: TM Net
Idle Latency: 4.56 ms (jitter: 0.34ms, low: 3.77ms, high: 4.68ms)
Download: 504.56 Mbps (data used: 801.3 MB)
5.18 ms (jitter: 8.98ms, low: 3.51ms, high: 223.51ms)
Upload: 205.88 Mbps (data used: 251.7 MB)
2.43 ms (jitter: 15.32ms, low: 1.40ms, high: 217.64ms)
Packet Loss: 1.0%
Result URL: https://www.speedtest.net/result/c/c78e91cc-80d4-4de2-9f18-1dbbc1cabe48
# speedtest
Server: Telekom Malaysia Berhad - Seberang Jaya (id: 45623)
ISP: TM Net
Idle Latency: 4.52 ms (jitter: 0.09ms, low: 4.43ms, high: 4.63ms)
Download: 373.86 Mbps (data used: 451.5 MB)
5.77 ms (jitter: 12.86ms, low: 3.57ms, high: 223.24ms)
Upload: 206.99 Mbps (data used: 253.7 MB)
4.88 ms (jitter: 7.81ms, low: 3.40ms, high: 215.53ms)
Packet Loss: 2.5%
Result URL: https://www.speedtest.net/result/c/f0e40ace-23b3-4367-8408-90fe447f3d9c
# speedtest
Idle Latency: 4.75 ms (jitter: 0.07ms, low: 4.68ms, high: 4.79ms)
Download: 422.93 Mbps (data used: 761.5 MB)
7.83 ms (jitter: 10.06ms, low: 5.61ms, high: 228.02ms)
Upload: 207.82 Mbps (data used: 225.6 MB)
8.01 ms (jitter: 27.30ms, low: 3.44ms, high: 217.97ms)
Packet Loss: 2.0%
Result URL: https://www.speedtest.net/result/c/26d591d2-7f75-4563-9562-23f748b944cc
# speedtest
Idle Latency: 4.77 ms (jitter: 0.09ms, low: 4.69ms, high: 5.00ms)
Download: 408.60 Mbps (data used: 376.3 MB)
5.32 ms (jitter: 8.21ms, low: 3.46ms, high: 220.66ms)
Upload: 205.98 Mbps (data used: 223.0 MB)
4.52 ms (jitter: 14.87ms, low: 3.47ms, high: 216.76ms)
Packet Loss: 1.3%
Result URL: https://www.speedtest.net/result/c/f21cbdbb-4364-4113-ad46-d299ae856992
This post has been edited by Oltromen Ripot: Oct 24 2023, 10:07 AM