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My Gigabit Internet is HALF speed

Contributor

My Gigabit Internet is HALF speed

I have a tech coming out to look things over. I am just wondering. If the issue is something that I can fix... There are the signal levels. Any help will be GREATLY appreciated..

 

Downstream
Channel Bonding Value
Index
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Lock Status
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Frequency
651 MHz
471 MHz
477 MHz
483 MHz
489 MHz
495 MHz
501 MHz
507 MHz
513 MHz
519 MHz
525 MHz
531 MHz
537 MHz
543 MHz
549 MHz
555 MHz
561 MHz
567 MHz
573 MHz
579 MHz
585 MHz
591 MHz
597 MHz
603 MHz
609 MHz
690 MHz
615 MHz
621 MHz
627 MHz
633 MHz
639 MHz
645 MHz
SNR
41.8 dB
41.3 dB
41.0 dB
40.7 dB
40.5 dB
40.5 dB
40.5 dB
40.7 dB
41.3 dB
41.8 dB
42.3 dB
42.9 dB
42.9 dB
42.7 dB
42.9 dB
42.9 dB
42.2 dB
41.5 dB
42.1 dB
42.1 dB
42.1 dB
42.5 dB
42.7 dB
42.8 dB
42.8 dB
13.3 dB
42.5 dB
42.0 dB
41.5 dB
41.5 dB
41.4 dB
41.5 dB
Power Level
3.3 dBmV
1.4 dBmV
0.6 dBmV
0.1 dBmV
0.4 dBmV
0.5 dBmV
0.4 dBmV
0.1 dBmV
0.8 dBmV
2.0 dBmV
3.2 dBmV
4.4 dBmV
5.1 dBmV
5.2 dBmV
5.4 dBmV
5.2 dBmV
4.7 dBmV
3.5 dBmV
3.1 dBmV
2.9 dBmV
3.7 dBmV
5.0 dBmV
5.8 dBmV
6.6 dBmV
6.5 dBmV
3.1 dBmV
5.7 dBmV
4.3 dBmV
3.4 dBmV
2.6 dBmV
2.3 dBmV
2.5 dBmV
Modulation
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
other
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
Upstream
Channel Bonding Value
Index
1
2
3
Lock Status
Locked
Locked
Locked
Frequency
36 MHz
30 MHz
23 MHz
Symbol Rate
5120
5120
5120
Power Level
42.8 dBmV
43.0 dBmV
43.5 dBmV
Modulation
atdma
atdma
atdma
Channel Type
UpStream
UpStream
UpStream

 

And here is a speed test. 

Speed Results

DOWNLOAD SPEED
510.8 Mbps
UPLOAD SPEED
40.3 Mbps
 
 
Expert

Re: My Gigabit Internet is HALF speed

The only thing that pops up at me looking at those signal stats is the 13.3 dB SNR on your OFDM carrier channel. I think the technician might be neccessary to fix it.

Contributor

Re: My Gigabit Internet is HALF speed

I have a tech scheduled for this coming friday.... I know long time for a tech visit....

Thank you for your reply.

 

Contributor

Re: My Gigabit Internet is HALF speed

What would cause this  13.3 dB SNR on your OFDM carrier channel????? A bad splitter, connector etc.

Expert

Re: My Gigabit Internet is HALF speed

What modem do you have? Is it their Technicolor XB6?

Contributor

Re: My Gigabit Internet is HALF speed

Yes... I have the XB6 modem..

 

Expert

Re: My Gigabit Internet is HALF speed

In that case, I don't think the SNR on that channel is low at all, the Technicolor XB6 seems to read OFDM SNR incorrectly. It still could be, but I doubt that right now through the XB6. Has any powercycling of devices and the modem change anything?

Contributor

Re: My Gigabit Internet is HALF speed

Nope... Not a thing... Even numerous Factory Resets have done any thing.

Contributor

Re: My Gigabit Internet is HALF speed

Also, I have replaced EVER coax and ethernet cable in this house..... 

Contributor

Re: My Gigabit Internet is HALF speed

Could my PC  be the issue? I do have a Gigabit net card in it. And I set it to 1Gbps in device manager.

Expert

Re: My Gigabit Internet is HALF speed

I dont think it is your device. Are you using Windows or Mac? The only thing I could say is try a release and renew of your IP Address. Open Command Prompt. Adding steps shortly.

 

Type in:

ipconfig /release

And then hit enter.

 

Wait a few moments after the command completes and then type in the following and see if there is any improvement:

ipconfig /renew

 

Contributor

Re: My Gigabit Internet is HALF speed

This is the response it got from the cmd prompt

Windows IP Configuration

The operation failed as no adapter is in the state permissible for
this operation.

Expert

Re: My Gigabit Internet is HALF speed

Hmm. That's very odd if you're connected to it. Try running it as an administrator and see if it lets you run it. When you type in cmd in the start menu search, right click it and then click on Run as administrator.

Contributor

Re: My Gigabit Internet is HALF speed

I did run it as Admin....

Contributor

Re: My Gigabit Internet is HALF speed

I reinstalled the net card..... The release and renew worked.

Expert

Re: My Gigabit Internet is HALF speed

Any improvements?

Contributor

Re: My Gigabit Internet is HALF speed

Latest speed test


Speed Results

DOWNLOAD SPEED
520.9 Mbps
UPLOAD SPEED
41.6 Mbps
Expert

Re: My Gigabit Internet is HALF speed

Ok. Would you be able to try the same thing if you put the XB6 into bridge mode temporarily with your laptop being the only device connected?

Contributor

Re: My Gigabit Internet is HALF speed

I am in bridge mode now...... And this is the speeds I got.

Speed Results

DOWNLOAD SPEED
503.8 Mbps
UPLOAD SPEED
42.0 Mbps
Expert

Re: My Gigabit Internet is HALF speed

Is that after a release and renew while in bridge mode?

Contributor

Re: My Gigabit Internet is HALF speed

No.... One sec

 

Contributor

Re: My Gigabit Internet is HALF speed

This is after the release and renew

Speed Results

DOWNLOAD SPEED
451.0 Mbps
UPLOAD SPEED
42.1 Mbps
 
Expert

Re: My Gigabit Internet is HALF speed

Ok. You can take it out of bridge mode. What website are you speedtesting to? I'm pretty much out of ideas myself, but tp hope the technician can fix it. He should be bringing an XMT device. I haven't personally seen it in action, but it is like a Raspberry Pi, but more powerful and designed to run speedtests to Comcast servers and see results from that device.

Contributor

Re: My Gigabit Internet is HALF speed

Why take it out of bridge mode? Aslo, thank you again for the help.

 

Expert

Re: My Gigabit Internet is HALF speed

Werent you using it for your Wi-Fi before, so that your wireless devices can reconnect if you take it out of bridge mode?

Contributor

Re: My Gigabit Internet is HALF speed

I have a router. But I was using it as a switch...

Expert

Re: My Gigabit Internet is HALF speed

Ok. So you are just using it as a wired switch and the XB6 as the router? If so, make sure the router is in AP Mode with Bridge Mode off on the XB6, if you are using the XB6 as the router. Bridge Mode only allows one device.

Contributor

Re: My Gigabit Internet is HALF speed

Got it ...... XB6 is in bridge mode.... Connected to my router wan port.. It works pretty good to me...

Expert

Re: My Gigabit Internet is HALF speed

Ok. Thanks for the clarification that you are using your side router as the main router being the only thing connected to the XB6. What site are you speedtesting to? Have you also checked your router for any QOS/WMM settings to disable?

Contributor

Re: My Gigabit Internet is HALF speed

Expert

Re: My Gigabit Internet is HALF speed

Ok. Its probably not going to make a difference, but have you tried speedtest.net, legacy.speedtest.net (make sure flash is enabled), or the speedtest app for Windows?

Contributor

Re: My Gigabit Internet is HALF speed

PING ms
12
 DOWNLOAD Mbps
212.70
 
 UPLOAD Mbps
42.19
 
Expert

Re: My Gigabit Internet is HALF speed

It seems that also while your speeds are roughly half on the download side, there doesn't seem to be much consistency in those download speeds as well. Anyhow, have you checked the router for any QOS/WMM settings present? If you see any of them disable them.

Contributor

Re: My Gigabit Internet is HALF speed

Doing that now.. Thanks

 

Contributor

Re: My Gigabit Internet is HALF speed

I know its been a while... But I solved my issue.... In windows 10. I had previously tweaked(messed with) the netsh in the command prompt..... Once I reset ALL netsh settings... I got gig a bit speeds... I want to thank you all for the help with this...... Especially  

Expert

Re: My Gigabit Internet is HALF speed

Glad to hear it all worked out now. Enjoy your Gigabit speed Smiley Happy