Slow Ethernet connection on my TV. WiFi is unaffected.

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ho1Aetoo
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PostPosted: Sat Sep 30, 2023 15:05    Post subject: Reply with quote
Have you ever noticed that it says the following?

Quote:
Fixes the issue in which the upload speed behind the R7800 can only reach one-third of the actual speed for some ISPs.


But you complain about the download speed of your TV

In addition, dd-wrt has relatively little in common with the stock firmware.

If you use PPPoE then set the TCP congestion control to Cubic instead of Westwood in the "administration" tab...

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use Pi-Hole as simple DNS-Server with DD-WRT https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=331414
VLAN configuration via GUI - 2 CPU ports (R7800, EA8500 etc) https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=334342


Last edited by ho1Aetoo on Sat Sep 30, 2023 15:10; edited 1 time in total
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moh_xbox
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Joined: 26 Jan 2018
Posts: 58

PostPosted: Sat Sep 30, 2023 15:10    Post subject: Reply with quote
ho1Aetoo wrote:
Have you ever noticed that it says the following?

Quote:
Fixes the issue in which the upload speed behind the R7800 can only reach one-third of the actual speed for some ISPs.


But you complain about the download speed of your TV

In addition, dd-wrt has relatively little in common with the stock firmware.

Yes, and as I said I don't know if these two issues are related.
But what I'm sure about is that in this update release Netgear has fixed the issue and DD-WRT still has it.

I don't know if experts can compare stock firmwares v.1.0.1.30 vs 1.0.2.04 to spot the fix.
ho1Aetoo
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Joined: 19 Feb 2019
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Location: Germany

PostPosted: Sat Sep 30, 2023 15:11    Post subject: Reply with quote
If you use PPPoE then set the TCP congestion control to Cubic instead of Westwood in the "administration" tab...

and test the R7800 as the primary router

I'm a bit surprised that you wrote that the problem also occurs when the R7800 is configured as an AP (I assume you mean as WAP)

In this case, the router does exactly nothing, the data stream runs through the gigabit switch and not through the router.

_________________
use Pi-Hole as simple DNS-Server with DD-WRT https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=331414
VLAN configuration via GUI - 2 CPU ports (R7800, EA8500 etc) https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=334342
moh_xbox
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Joined: 26 Jan 2018
Posts: 58

PostPosted: Sat Sep 30, 2023 17:09    Post subject: Reply with quote
ho1Aetoo wrote:
If you use PPPoE then set the TCP congestion control to Cubic instead of Westwood in the "administration" tab...

and test the R7800 as the primary router

I'm a bit surprised that you wrote that the problem also occurs when the R7800 is configured as an AP (I assume you mean as WAP)

In this case, the router does exactly nothing, the data stream runs through the gigabit switch and not through the router.

My setup now is ISP modem -> Rax40v2 Netgear as the main router with PPPoE connection -> R7800 in Rouer mode with different subnet.

I changed the TCP congestion control to cubic and it didn't help.

For access point mode, I tried that with the old stock firmware (faulty one) by changing the mode to access point with the cable still inserted in the WAN port. And the speed problem stayed there.

For ddwrt and also for the stock firmwares sorry if I confused you but I didn't try the acces point mode method that includes disabling the DHCP and inserting the connection source cable in Lan port.


Last edited by moh_xbox on Fri Oct 06, 2023 0:19; edited 1 time in total
moh_xbox
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Joined: 26 Jan 2018
Posts: 58

PostPosted: Sat Sep 30, 2023 17:18    Post subject: Reply with quote
I will keep the DD-WRT firmware on the R7800 for now, in case any of you have any suggestions for how to fix the issue.


Thanks
ho1Aetoo
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Joined: 19 Feb 2019
Posts: 2573
Location: Germany

PostPosted: Sat Sep 30, 2023 17:22    Post subject: Reply with quote
Well, the TCP congestion control only works if the R7800 is the PPPoE endpoint.

Otherwise the setting has no effect for forwarded traffic.

_________________
use Pi-Hole as simple DNS-Server with DD-WRT https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=331414
VLAN configuration via GUI - 2 CPU ports (R7800, EA8500 etc) https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=334342
moh_xbox
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Joined: 26 Jan 2018
Posts: 58

PostPosted: Sat Sep 30, 2023 18:50    Post subject: Reply with quote
ho1Aetoo wrote:
Well, the TCP congestion control only works if the R7800 is the PPPoE endpoint.

Otherwise the setting has no effect for forwarded traffic.


Ok, now I connected the R7800 ddwrt build r53544 directly to the ISP modem as the PPPoE endpoint, and connected the TV through lan port. The problem still persist in both westwood and cubic TCP congestion control.
D.F.Cruizer
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Joined: 14 May 2023
Posts: 58

PostPosted: Sun Oct 01, 2023 0:08    Post subject: Reply with quote
My educated guess is that some previous setting created earlier prevents the TV from reaching a speed higher than showing.

In your recently raised QoS-related post, wrong assumption about DDWRT's default QoS on Ports led to incorrect diagnosis of subsequent issues.
https://forum.dd-wrt.com/phpBB2/viewtopic.php?p=1290136&highlight=#1290136

Not only that, you also raised a question, based on a made-up scenario for your convenience:

moh_xbox wrote:

How can I make Phone 1 and 2 both equal in bandwidth? By setting the Ethernet port 1 priority to Standard?


when i zoomed in on the phones:
D.F.Cruizer wrote:
Are your two phones are VoIP phones by any chance?


You answered:
moh_xbox wrote:

I gave the example of these Two phones to make my inquiry clear, because I actually have the main router in my room upstairs, and the access point for my family downstairs.

And I don't want my family devices to be prioritized by the Ethernet port priority that is set to premium by default DD-WRT settings.


So how does one know that you have not made up another scenario in this post 'to make your inquiry clear'?

This forum is frequented by volunteers. Treat them with respect to get better assistance. I'd suggest.
Gameman Advanced Kid
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Joined: 18 Nov 2012
Posts: 1152

PostPosted: Sun Oct 01, 2023 3:37    Post subject: Reply with quote
moh_xbox wrote:
Alozaros wrote:
R7800 on 53544 works as it should ...all lan ports in use no problems with speed
if your problems persist:
-due to misconfiguration
-poor ISP speed, due to chained routers and double NAT
-poor TV speed performance...as those have a CPU that has to serve multiple services and ect.
-bad cabeling and loose connections
-last build running could mean last build after even ten years time...so last build is 53544...use it instead of the one recommended from router database
-bad compatibility between client & hardware...
explore those options...


Sorry but No.
Did you read my other reply ?
Not all devices are affected. My laptop doesn't have the issue just like your devices.
The issue, which affects some devices like my TV, is there on Netgear old firmwares and dd wrt recent firmwares (and may be old dd wrt firmwares), and Netgear has fixed it with update v1.0.2.04.


I want to respond specifically to this post. This has to be the best answer here in this thread made by alozaros but @moh_xbox just skimmed over it without considering the suggestions in alozaros post.

this sugggestion here

Quote:
-poor TV speed performance...as those have a CPU that has to serve multiple services and ect.


is basically pointing to the TV being a problem. I can tell you that as a WISP field tech that has had to help other customers over the course of 5 years with this particular problem, I have had to suggest customers to buy a roku player because their smart TVs, even after factory resetting them, can no longer run as well as they used to. And this kind of fix costs anywhere between 40 to 100 dollars depending on which roku you pick.

And its much cheaper than buying a whole new TV. less effort too.

Now back to @moh_xbox. Unfortunately, I am going to have to refer him to this thread.

https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=48331

I do not expect any kind answer from @moh_xbox. As a field tech who has been in this for about 10 years with both satellite TV services and Fixed wireless internet services, I expect the same kind of negative response that I have gotten in the customer service part of my job.

@moh_xbox , I hope you find the answer to your problem. And if I may offer my own suggestion, stick to having one router taking care of all the routing.

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moh_xbox
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Joined: 26 Jan 2018
Posts: 58

PostPosted: Sun Oct 01, 2023 4:25    Post subject: Reply with quote
D.F.Cruizer wrote:
My educated guess is that some previous setting created earlier prevents the TV from reaching a speed higher than showing.

In your recently raised QoS-related post, wrong assumption about DDWRT's default QoS on Ports led to incorrect diagnosis of subsequent issues.
https://forum.dd-wrt.com/phpBB2/viewtopic.php?p=1290136&highlight=#1290136

Not only that, you also raised a question, based on a made-up scenario for your convenience:

moh_xbox wrote:

How can I make Phone 1 and 2 both equal in bandwidth? By setting the Ethernet port 1 priority to Standard?


when i zoomed in on the phones:
D.F.Cruizer wrote:
Are your two phones are VoIP phones by any chance?


You answered:
moh_xbox wrote:

I gave the example of these Two phones to make my inquiry clear, because I actually have the main router in my room upstairs, and the access point for my family downstairs.

And I don't want my family devices to be prioritized by the Ethernet port priority that is set to premium by default DD-WRT settings.


So how does one know that you have not made up another scenario in this post 'to make your inquiry clear'?

This forum is frequented by volunteers. Treat them with respect to get better assistance. I'd suggest.

The number of hard resets and soft resets and reflashing stock firmwares back and forth to check that issue is countless, so no previous setting is there to affect the current issue.
And for the QoS related topic, my inquiry was based on my actual setup, I do not know why do you think I was making up things ?
and what is wrong with calling my Galaxy S23 (Phone 1) and my brother's Xiaomi 11T Pro as (Phone 2) to clarify my inquiry ?
I was really worried about ethernet priorities within the QoS, and I think I answered your questions clearly.

I am here seeking help from your kind persons, if I can solve everything why would I post my issues.

D.F.Cruizer wrote:

This forum is frequented by volunteers. Treat them with respect to get better assistance. I'd suggest.

I am sorry that you feel you are disrespected but I do not understand where did I disrespect you or other people ?

Anyway, if you followed the replies here, you will find that I never made any scenarios here and I am really testing any suggestion given by the kind persons here. When I make a scenario to clarify things I will say it just like in the other post.


Last edited by moh_xbox on Sun Oct 01, 2023 7:01; edited 1 time in total
moh_xbox
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Joined: 26 Jan 2018
Posts: 58

PostPosted: Sun Oct 01, 2023 4:39    Post subject: Reply with quote
Gameman Advanced Kid wrote:

I want to respond specifically to this post. This has to be the best answer here in this thread made by alozaros but @moh_xbox just skimmed over it without considering the suggestions in alozaros post.

this sugggestion here

Quote:
-poor TV speed performance...as those have a CPU that has to serve multiple services and ect.


is basically pointing to the TV being a problem. I can tell you that as a WISP field tech that has had to help other customers over the course of 5 years with this particular problem, I have had to suggest customers to buy a roku player because their smart TVs, even after factory resetting them, can no longer run as well as they used to. And this kind of fix costs anywhere between 40 to 100 dollars depending on which roku you pick.

And its much cheaper than buying a whole new TV. less effort too.


Thank you for answering,

I simply disagreed with Alozaros because every time I flash the Netgear stock firmware V1.0.2.xx, the issue disappears and my TV gets full 70 Mbps. And every time I flash DD-WRT or stock firmwares released prior to V1.0.2.xx, the issue comes back.

So how is it a TV CPU problem?

I know that TV CPUs are cheap and slow, but if Netgear stock firmware can deliver my line's full 70 Mbps speed with their upgraded firmwares 1.0.2.xx, then what is wrong with me trying to make DD-WRT deliver the same speed?


Gameman Advanced Kid wrote:

I do not expect any kind answer from @moh_xbox. As a field tech who has been in this for about 10 years with both satellite TV services and Fixed wireless internet services, I expect the same kind of negative response that I have gotten in the customer service part of my job.

@moh_xbox , I hope you find the answer to your problem. And if I may offer my own suggestion, stick to having one router taking care of all the routing.


I am sorry you feel that way about me. Thank you for trying to help.


Last edited by moh_xbox on Sun Oct 01, 2023 6:54; edited 1 time in total
moh_xbox
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Joined: 26 Jan 2018
Posts: 58

PostPosted: Sun Oct 01, 2023 5:18    Post subject: Reply with quote
Gameman Advanced Kid wrote:

And if I may offer my own suggestion, stick to having one router taking care of all the routing.

This is a good suggestion. For now, the R7800 is in my room and the Rax40v2 in the rest of the house for my family.

The Rax40v2 is the main router, but I feel that I will not benefit from the potential of the R7800 if I just use it as an access point while using the less powerful Rax40v2 for routing.
And to avoid double nat, I fixed an IP address for the R7800 MAC and put it in the DMZ.

Also, I do not want the R7800 to be the main router in the house for now for two reasons:

1- It has that speed issue which is affecting my TV and may affect other devices.
2- I often mess with the R7800, so a lot of restarts and disconnections happen, which would disconnect the internet for my family's Rax40v2, and then they would kick me out of the house lol.
moh_xbox
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Joined: 26 Jan 2018
Posts: 58

PostPosted: Sun Oct 01, 2023 17:51    Post subject: Reply with quote
Anyway, here is the problem in a video:

https://youtu.be/iB9i-Wjw3es

Hopefully a fix will be available one day.

Sorry for not speaking the technical language of networking, as I am a civil engineer.
mac913
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PostPosted: Sun Oct 01, 2023 18:43    Post subject: Reply with quote
I seen your video when the ethernet cable is connected the r7800 port led is orange for 100mbps that maybe the problem. Do you have a gigabit switch to put between the router's lan port and device to test?
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moh_xbox
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PostPosted: Sun Oct 01, 2023 18:55    Post subject: Reply with quote
mac913 wrote:
I seen your video when the ethernet cable is connected the r7800 port led is orange for 100mbps that maybe the problem. Do you have a gigabit switch to put between the router's lan port and device to test?


That's the TV port, it is 100mbps

I now checked the cable in the laptop, 1Gbps giving full 70 mbps dl/ul (attached)
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