Speed & Latency issues suddenly appeared!

[dustinlavigne]

Hey everyone,

So out of nowhere tonight, got hit with some massive download speed & latency issues.

If the connection is barely used, latency to google dns, for example, hovers around 40-45 ms.

As soon as I start using the connection, with a speedtest or the like, the latency shoots up to 1000 ms and + . (Up to 1800 ms.)

Also, since I'm on the gigabit package, download speeds easily usually com in at 850 Mbps. and more. (Quite consistently 920-940.)  Since a bit earlier tonight, can't hit more than 200 Mbps.

I've factory reset my modem, did a 5 minute power pull, and all your usual tests with my PC directly connected. ( I work as an I.T. Analyst by trade.)

Signal levels on the downstream are as follows;

16

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

34

33

34

Locked

Locked

Locked

Locked

Locked

Locked

Locked

Locked

Locked

Locked

Locked

Locked

Locked

Locked

Locked

Locked

Locked

Locked

Locked

651 MHz

555 MHz

561 MHz

567 MHz

573 MHz

579 MHz

585 MHz

591 MHz

597 MHz

603 MHz

609 MHz

615 MHz

621 MHz

633 MHz

639 MHz

645 MHz

723 MHz

350000000

723000000

40.1 dB

41.1 dB

41.1 dB

41.0 dB

41.1 dB

41.3 dB

41.0 dB

40.9 dB

41.1 dB

41.2 dB

41.2 dB

40.9 dB

40.8 dB

40.5 dB

40.4 dB

40.3 dB

39.3 dB

39.2 dB

39.2 dB

3.8 dBmV

3.1 dBmV

3.3 dBmV

3.2 dBmV

3.3 dBmV

3.6 dBmV

3.4 dBmV

3.9 dBmV

4.6 dBmV

5.9 dBmV

7.2 dBmV

3.5 dBmV

3.3 dBmV

3.1 dBmV

3.1 dBmV

3.6 dBmV

5.3 dBmV

0.5 dBmV

5.3 dBmV

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

OFDM

OFDM

OFDM

I feel like that channel 33   0.5dBmV is out of whack. Could this be part of the cause?

Upstream is behaving normally and not affecting latency. 

Thanks!

***Edited Labels***

[RogersMoin · Accepted solution]

Hello, @dustinlavigne.

Thank you for posting your concern, and welcome to our Community. Latency and slow speed can surely disrupt your Internet experience. 

I appreciate the troubleshooting you have done so far and posting the downstream signal levels. We'd like to run a few tests to determine the root cause of the issue. Please send us a private message at @CommunityHelps. You can find details about our private messaging in this blog. 

Cheers,

RogersMoin

[dustinlavigne]

Hi @RogersMoin ,

Thanks for reaching out. It was, after all, probably just a temporary issue with the local segment.

When I awoke the next morning, the issue was gone. 

Thanks again for offering to help.