Does data point socket have speed limit?

12retire

Junior Member
Joined
Feb 25, 2020
Messages
32
Reaction score
1
Plse help me solve this problem.

At the utility room (DB area), i have M1 ONT connected to ASUS Router with 3 ports connected to 3 data points in the wall.
These 3 data points is wired to 3 separate rooms by Cat6 cable.

When I test my laptop speed via a Cat6 cable direct from the router, the speed is 300~400mbps.
When I test my laptop speed via a Cat6 cable direct from one of the room data point socket, the speed is 90~100mbps.
(only 1 pc is tested at a time, not testing 3 pcs simultaneously)
Both tests are using the same cable .. so this eliminates the cable issue.

I thought maybe the router divides speed by the number of outgoing port connections.
I called M1, they said high chance is because the data point socket cannot handle high speed.

Is it plausible?
I did some google but cannot find info that data point sockets have different speed type.

Anyone knows what could be the issue? TIA




Screenshot_6.jpg
 

Apex

Senior Member
Joined
Jan 1, 2000
Messages
2,494
Reaction score
234

bert64

Senior Member
Joined
Jan 20, 2020
Messages
1,025
Reaction score
535
Are you sure its cat6 cable?
Proper cat6 is capable of 1gbps, but it sounds like you have cat5 in the walls which is only rated for 100mbps, or the cable is damaged in some way.
You have to consider not just the patch cables (which do seem to be cat6 since you were able to get 300mbps connected directly to the router), but also the cable thats in the walls between the data points.
 

xiaofan

High Supremacy Member
Joined
Sep 16, 2018
Messages
30,169
Reaction score
8,231
When I test my laptop speed via a Cat6 cable direct from the router, the speed is 300~400mbps.

That is the first thing to troubleshoot. Are you on a 1Gbps plan or 500Mbps plan? Either way this is too low. Check your cable and router setup.

What is the router used? Disable all the QoS settings and then check again, You should be able to get around 900Mbps for 1Gbps plan and 450Mbps for 500Mbps plan. Make sure you use SpeedTest app and not browser for testing.

Please also follow the advice from apex and bert64 to check your cabling and PC/router connection.
 

12retire

Junior Member
Joined
Feb 25, 2020
Messages
32
Reaction score
1
I am on M1 1Gbps plan.

M house is newly renovated 1 year ago. The contractor said they used Cat 6 cable.

Is there any way to check whether the contractor cheat me by using Cat 5 cable?
 

firesong

Supremacy Member
Deluxe Member
Joined
Jan 17, 2001
Messages
8,605
Reaction score
4,590
Multiple steps to troubleshoot:

a) Faulty patch cables. Use other patch cables to see if it will help.
b) poor termination at the keystone/jack. Redoing that would solve it.
c) faulty cable runs (the hardest and most annoying to troubleshoot imo)

There's also interference with electrical cables, but frankly I've seen many runs alongside power cables and still are capable of almost gigabit speeds, so I doubt this to be the case.

I am on M1 1Gbps plan.

M house is newly renovated 1 year ago. The contractor said they used Cat 6 cable.

Is there any way to check whether the contractor cheat me by using Cat 5 cable?
If you are able to look at an exposed section of the cable, just reading the prints on the cable should give you an idea.
 

TanKianW

Supremacy Member
Joined
Apr 21, 2005
Messages
6,652
Reaction score
3,295
Plse help me solve this problem.

At the utility room (DB area), i have M1 ONT connected to ASUS Router with 3 ports connected to 3 data points in the wall.
These 3 data points is wired to 3 separate rooms by Cat6 cable.

When I test my laptop speed via a Cat6 cable direct from the router, the speed is 300~400mbps.
When I test my laptop speed via a Cat6 cable direct from one of the room data point socket, the speed is 90~100mbps.
(only 1 pc is tested at a time, not testing 3 pcs simultaneously)
Both tests are using the same cable .. so this eliminates the cable issue.

I thought maybe the router divides speed by the number of outgoing port connections.
I called M1, they said high chance is because the data point socket cannot handle high speed.

Is it plausible?
I did some google but cannot find info that data point sockets have different speed type.

Anyone knows what could be the issue? TIA




Screenshot_6.jpg

In theory, if it is Cat6, you can even achieve 10Gbps. But that is considering if the cabling job was done properly. And "doing it properly" isn't the common standard of most "renovation contractors or electrician" out there.

When I was "10G-ing" my home network in my new apartment, turns out, only 4 out of 6 data points could achieve 10G. The exception of other 2 points are due to some funny termination, sub-par keystone extension/split done by the self proclaimed experts.​
 
Last edited:

localITguy

Suspended
Joined
Dec 13, 2013
Messages
17,804
Reaction score
1,676
you need to check if the cables are terminated correctly at the data point's end an easy way is to use the realtek tool ( assuming you have a realtek lan on your laptop https://www.realtek.com/en/componen...0-1000m-gigabit-ethernet-pci-express-software

just use working and known good cable ( one end plug to your laptop, the other plug to the corresponding data point and then u open the tool. it will tell u if the cables is terminated correctly.

another way is to buy a fluke network tester, ( LOL)

https://www.fluke.com/en-sg/products/network-cable-testers/industrial-ethernet-testers
freaking expensive
 

lilycll

Senior Member
Joined
May 7, 2018
Messages
2,012
Reaction score
498
I am on M1 1Gbps plan.

M house is newly renovated 1 year ago. The contractor said they used Cat 6 cable.

Is there any way to check whether the contractor cheat me by using Cat 5 cable?

You can try open up the cable trunking (or termination box if still have some cabling allowance) and check the wordings labelled on the network cable to confirm the cable specs.

Sometime speed may be affected due to improper termination at either cable ends/box where the cable and RJ45 plugs are not well terminated. There are 8 smaller wires in one CAT5/6 cable and any loose wiring or improper termination will affect the speed. You may need a network cabling tester to verify this.
 
Last edited:

theinquirer

Senior Member
Joined
Sep 21, 2010
Messages
2,282
Reaction score
912
Plse help me solve this problem.

At the utility room (DB area), i have M1 ONT connected to ASUS Router with 3 ports connected to 3 data points in the wall.
These 3 data points is wired to 3 separate rooms by Cat6 cable.

When I test my laptop speed via a Cat6 cable direct from the router, the speed is 300~400mbps.
When I test my laptop speed via a Cat6 cable direct from one of the room data point socket, the speed is 90~100mbps.
(only 1 pc is tested at a time, not testing 3 pcs simultaneously)
Both tests are using the same cable .. so this eliminates the cable issue.

I thought maybe the router divides speed by the number of outgoing port connections.
I called M1, they said high chance is because the data point socket cannot handle high speed.

Is it plausible?
I did some google but cannot find info that data point sockets have different speed type.

Anyone knows what could be the issue? TIA




Screenshot_6.jpg
same here


WHO DID UP YOU DATA PORTS ?

uncertified technician

horrible BTO
i solved by redoing all the keystone!



then OK liao!
 

12retire

Junior Member
Joined
Feb 25, 2020
Messages
32
Reaction score
1
Thanks all for your advice & suggestions. 🙏

I managed to solve the issues.

2 issues solved:
- Ethernet Adapter - upgrade to a gigabit one
- Firmware update (due to intermittent disconnection)
 

firesong

Supremacy Member
Deluxe Member
Joined
Jan 17, 2001
Messages
8,605
Reaction score
4,590
- Ethernet Adapter - upgrade to a gigabit one
This wasn't declared upfront, but good that you've figured it out.

USB 2.0 has a max theoretical speed of 480Mbps burst. Real life about 300 as you have discovered, sustained is actually about 180Mbps or so.

As an aside, USB ethernet adaptors are generally a bad idea since they don't do sustained throughput well - there's a good reason why standards like Thunderbolt and the previously popular IEEE1394 (Firewire) exist - because they are designed with sustained throughput in mind (think external HDDs permanently plugged into workstations). USB has peak throughput, and then it drops over time to much less than the peak advertised rates. So for long-term connected devices like network interfaces, connecting via the USB bus is not optimal. It's fine for occasional use, but not for permanent long term use.

So if your primary mode of access is wireless (cos it's a laptop that's not docked), it should be okay. If it's a computer without an ethernet card and you're dependent on the ethernet dongle, consider a more permanent solution instead.
 

xiaofan

High Supremacy Member
Joined
Sep 16, 2018
Messages
30,169
Reaction score
8,231
I am actually using a USB 3 Ugreen gigabit adapter with my Raspberry Pi 400 running OpenWRT as the WAN port (running 24/7 for one month, now restart again for 5 days).

Surprisingly it is very stable and can sustain gigabit connection during my testing.

Then I have Ugreen USB 3 to 2.5G Ethernet adapters. I am not using them so often but at least they can sustain 2.5Gbps connection during my test (not really stressful test though, just copy a few GBs of files, or using iperf3).

So I think they are fine under Windows and Linux and macOS, especially those more commonly recognized (eg: Asix AX88179 based USB 3 gigabit adapter or Realtek RTL8153 based).

USB is kind of a polling based bus but at least is is faster than gigabit Ethernet so there should not be too much issues in normal usage. Rather the OS drivers play a big part.

But if you are running pfSense (FreeBSD based), avoid USB adapters as per the recommendation from Netgear.

PS: I am not a real USB expert but I know more about USB than home networking as I am involved with multiple USB related open source projects (testing and supporting role).
 
Last edited:
Important Forum Advisory Note
This forum is moderated by volunteer moderators who will react only to members' feedback on posts. Moderators are not employees or representatives of HWZ. Forum members and moderators are responsible for their own posts.

Please refer to our Community Guidelines and Standards, Terms of Service and Member T&Cs for more information.
Top