Slower speeds on a Windows PC, other devices are fine.

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I'm Here A Lot
Posts: 7

Re: Slower speeds on a Windows PC, other devices are fine.

@RogersTim thank you for looking into this,

 

I did do a speedtest on my cellphone and it is getting much better speeds at about 300-450.

 

and here is the downstream overview

Downstream Overview

Port ID Frequency (MHz) Modulation Signal strength (dBmV) Channel ID Signal noise ratio (dB)
1 591000000 256QAM 2.500 7 38.605
2 561000000 256QAM 2.000 2 38.605
3 567000000 256QAM 2.100 3 38.605
4 573000000 256QAM 2.300 4 38.605
5 579000000 256QAM 1.900 5 38.983
6 585000000 256QAM 2.200 6 38.605
7 555000000 256QAM 2.300 1 38.983
8 597000000 256QAM 2.300 8 38.983
9 603000000 256QAM 2.300 9 38.983
10 609000000 256QAM 2.500 10 38.983
11 615000000 256QAM 2.700 11 38.983
12 621000000 256QAM 2.800 12 38.983
13 633000000 256QAM 3.100 13 38.983
14 639000000 256QAM 3.300 14 38.983
15 645000000 256QAM 3.400 15 38.605
16 651000000 256QAM 3.400 16 38.983
17 657000000 256QAM 3.400 17 38.605
18 663000000 256QAM 3.900 18 38.983
19 669000000 256QAM 3.800 19 38.605
20 675000000 256QAM 3.600 20 38.983
21 681000000 256QAM 3.600 21 38.983
22 687000000 256QAM 3.600 22 38.983
23 693000000 256QAM 3.300 23 38.983
24 699000000 256QAM 2.800 24 38.605
25 705000000 256QAM 3.100 25 38.983
26 711000000 256QAM 2.900 26 38.983
27 717000000 256QAM 2.600 27 38.605
28 723000000 256QAM 2.600 28 38.983
29 729000000 256QAM 2.600 29 38.605
30 735000000 256QAM 2.400 30 38.983
31 741000000 256QAM 2.300 31 38.983
32 747000000 256QAM 2.300 32 38.983
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I Plan to Stick Around
Posts: 11

Re: Slower speeds on a Windows PC, other devices are fine.

In future please do post entire table including OFDM channel and upload. Since you getting 350 to 450 on wifi, doesn't see likely that is issue. I am thinking issue is with negotiation of speeds between devices, can you try different wired device?

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I'm Here A Lot
Posts: 7

Re: Slower speeds on a Windows PC, other devices are fine.

Sadly no i cannot i only have the one wired device, however it is a laptop and i just tried the wifi with it with no change on speedtest

 

and sorry bout that here is the rest of the tables (for some reason it wouldn't stay as a table)

 

OFDM Downstream Overview
Receiver FFT type Subcarr 0 Frequency(MHz) PLC locked NCP locked MDC1 locked PLC power(dBmv)
0 NA NA NO NO NO NA
1 4K 251600000 YES YES YES 2.099998
Upstream Overview
Port ID Frequency (MHz) Modulation Signal strength (dBmV) Channel ID Bandwidth
1 38596000 ATDMA - 64QAM 37.500 6 3200000
2 30596000 ATDMA - 64QAM 35.500 4 6400000
3 23700000 ATDMA - 64QAM 35.000 5 6400000
OFDM/OFDMA Overview
Channel Index State lin Digital Att Digital Att BW (sc's*fft) Report Power Report Power1_6 FFT Size
0 DISABLED 0.5000 0.0000 0.0000 -inf -1.0000 4K
1 DISABLED 0.5000 0.0000 0.0000 -inf -1.0000 4K
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I Plan to Stick Around
Posts: 11

Re: Slower speeds on a Windows PC, other devices are fine.

Oh okay, so let work with what we have. In one of your post you mentioned about using cell phone and getting 300+ in speed test. Can you do speed test on your laptop and cell phone simultaneously and see if it get close to speed you subscribed. I want to isolate to see if Rogers is delivering speed in question for subscribed package.

 

Regarding your laptop, can you post specs of your laptop, including type of processor, or even just model and manufacturer would be great. I am thinking either your laptop is old or/and that it only support 100 Mbps speed or it is set incorrectly network properties of Operating System.  

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I'm Here A Lot
Posts: 7

Re: Slower speeds on a Windows PC, other devices are fine.

so i did a test on both at the same time with both on the WiFi, and i received a 31Mbps on the laptop and a 660Mbps on the phone. And with the phone disconnected from WiFi i get 90 on laptop

 

My laptop is an ASUS ROG G752VY with:

Prosessor: Intel I7-6700HQ @ 2.6GHz

Memory: 32GB of DDR4 2133MHz SDRAM

Graphic: GTX980M with either 4GB or 8GB VRAM (not 100% sure which)

Wireless: Intel Dual Band Wireless-AC 8260

Ethernet: Realtek PCIe GBE family controller

 

Edit: This was purchased only about 2 and a half years ago

 

 

 

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I Plan to Stick Around
Posts: 11

Re: Slower speeds on a Windows PC, other devices are fine.

I wonder if Realtek switch is problematic over here, did you do speed test on wifi with laptop connected to wifi? Rogers is providing the speed so it seems it is between modem and devices.

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I'm Here A Lot
Posts: 7

Re: Slower speeds on a Windows PC, other devices are fine.

so far ive tested,

Laptop only wired : 80-90 with three different cables all same thing

Laptop only WiFi : 70-80

Phone only WiFi : 500+

Laptop Wired + Phone WiFi : LT 90Mbps P 400+

Laptop + Phone WiFi : LT 50Mbps P 400+

all wifi tests were done with 5G network

I have also tried updating windows and the network drivers to have no change so far

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Resident Expert
Resident Expert
Posts: 6,987

Re: Slower speeds on a Windows PC, other devices are fine.

@RavenSilverwolf  you indicated in one of your previous posts that "I am using the CODA 4582 with the 500u package and i notice that on a speedtest I'm only getting about 20-50Mbps and the Ethernet port only has the activity light blinking orange, with the link light off."  Are you referring to the link LED on the laptop ethernet port, or, the port LED on the back of the modem? 

 

If you look at the back of the modem, the connected port LED should be flashing amber, indicating a gigabit/sec connection rate with the connected device port.  If the port LED is flashing green, that indicates a 10/100 Mb/s connection rate.  The port LED colours on the Hitron modems appear to be the reverse of the industry standard. 

 

With that laptop, I'd expect you to see somewhere in the 930 to 950 Mb/s range on a speedtest if its connected directly to the modem or router.  My son has a G750 which is an earlier generation gaming laptop and he'll see in the neighbourhood of 900+ Mb/s thru the house ethernet and gigabit switch.  The path in this case is:

 

CODA-4582 ==> RT-AC86U ==> house ethernet ==> gigabit switch ==> house ethernet ==> G750

 

So, I'd expect you to easily max out the 500 Mb/s plan that you're on. 

 

Can you confirm for me that you have the following storage onboard:

 

Storage: NVMe 256GB Samsung (boot disk) + 1TB HDD 7200rpm (data disk)

 

Is your temp folder on the NVMe Samsung drive or the slower Hard drive, not that I expect it to be used in normal operation?  I suspect that its on the NVMe drive, given that it happens to be the boot drive and windows temp folder is typically located in the Windows folder. 

 

Have you ever seen this laptop run 500+ Mb/s at any time on another network?



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I'm Here A Lot
Posts: 7

Re: Slower speeds on a Windows PC, other devices are fine.

Currently it is flashing Amber

 

Yes it does have the 256GB NVMe and 1TB HDD the temp is indeed in the NVMe

 

And no prior to this i had the 150u plan but ,once i found out the prices were lowered I upgraded to the 500u, this is the highest data rate I've used with this, at least that i know of and tested, above the 150 I previously had and if I remember correctly it was getting the 150 speeds if not around 80-90% of it using the CGN3 modem

 

Are there any settings that might be limiting this on my laptop? I've seen a few fixes that I've tried and didn't seem to make a difference

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Resident Expert
Resident Expert
Posts: 6,987

Re: Slower speeds on a Windows PC, other devices are fine.

First thing I would do is review the laptop power settings and turn off any setting that limits the ethernet port power, or sets a sleep cycle.  

 

Then, have a look at the following page, specifically the Receive Window Auto-Tuning level:

 

https://support.microsoft.com/en-us/help/4494445/tcp-receive-auto-tuning-level-feature-in-windows

 

This situation of slow download rates has come up very recently with another customer and was resolved by setting the Receive Window Auto-Tuning level to normal if I remember it correctly.  I had to use the same command for a pc, but in my case I had to set the value to experimental to get back to 900+ Mb/s.  

 

Run the following command at a command prompt to see what your Auto-Tuning level is currently set to:

 

netsh interface tcp show global

 

Take note of the current setting:

 

Then, using a command prompt with administrator rights, run the following if you want to set the value to experimental.  The values for this setting are shown on that microsoft page:

 

netsh interface tcp set global autotuninglevel=experimental

 

Then reboot the laptop and run a speedtest.  

 

Other food for thought at this point is to delete all previous ethernet network profiles off of the laptop:

 

Here's one way to do this:  https://www.youtube.com/watch?v=G5GQPex2aKI

 

When this is done and the adapter is reenabled, a new ethernet network profile will be generated.  

 

There should be another way to do this via command prompt.  Its been a while since I've looked at this .....

 

The other food for thought is to review all of the advanced network adapter settings and see if their appropriate for the 500 Mb/s data rate.  Drill down into the adapter settings, go to the advanced tab and check each setting.  Jumbo Frames should be disabled.  

 

Also check the Power Management tab and deselect the "Allow the computer to turn off this device to save power".  If you're laptop is more of a desktop and remains in one place, then, leaving the adapter powered up shouldn't be an issue.  It depends on how mobile you are with the laptop.  

 

I'd do this very carefully, one step at a time, rebooting the laptop where necessary.  Take note where you see a positive change and be prepared to undo a change if you see no effect.  Usually the laptop network adapter should reset when a new setting is accepted.  

 

At the end of the day, problems that we usually encounter are with Realtek adapters.  Don't know why, that's what we've seen in the past.  With a motherboard, that's easy to resolve, disable the Realtek onboard adapter and install an Intel LAN adapter.  With a laptop, not so easy.  I wonder what the USB 3.1 performance is like on this laptop?  That might be worth looking at, using a gigabit ethernet to USB 3.1 adapter.  First step is to look at the various settings and go from there.