Newcomer

Consistently slow internet speeds, intermittent drop outs

 I need some help figuring out what might be causing some issues with my internet connectivity and overall speeds.

 

I live in Oshkosh, WI in a 12-unit apartment building where I've been for the past year. When I first got internet hooked up here, I think it was the 40 or 50 mbps speed tier and I actually had really good speeds most of the time and few issues. My area has recently had an upgrade to 100Mbps.

 

I only connect one gaming PC via ethernet and occassionally use my cell phone on WiFi. I'm currently using the modem they gave me, a Ubee DVW32CB.

 

Around October, I started having serious problems with my internet completely dropping out many times at all hours of the day, as well as consistent speeds below 10Mbps. It would be very bad for two or three days in a row, then fine for a week. Over and over. Sometimes when it was working well, I'd do a speedtest and actually get 40, 80 or even 100Mbps so I know my connection is capable of it.

 

Most of December, especially the last 2 weeks have been awful. When I've been experiencing severe lag and slowdown, I have done speedtests and come back with figures of 1.5 - 3 down, 5 - 10 up.

 

*Sometimes* immediately after the modem reconnects after being unplugged, I get a speeedtest of 10-20Mbps up but within minutes it drops down to single digits. I have tested all different times of day and get similar results.

 

In reading many posts on these forums, I notice my channel information seems to have some very different figures than many other users. Any suggestions?

 

Downstream Bonded ChannelsChannel Lock Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectables

1 QAM256 627000000 Hz3.6 dBmV40.0 dB220
2 QAM256 651000000 Hz3.0 dBmV40.7 dB390
3 QAM256 663000000 Hz3.2 dBmV40.8 dB250
4 QAM256 669000000 Hz3.1 dBmV40.7 dB520
5 QAM256 675000000 Hz3.3 dBmV40.1 dB550
6 QAM256 681000000 Hz3.2 dBmV40.7 dB4325
7 QAM256 687000000 Hz2.8 dBmV40.5 dB4323
8 QAM256 699000000 Hz3.1 dBmV40.8 dB170
9 QAM256 705000000 Hz3.0 dBmV40.7 dB390
10 QAM256 711000000 Hz2.5 dBmV40.3 dB5012
11 QAM256 717000000 Hz2.1 dBmV40.2 dB523
12 QAM256 723000000 Hz1.8 dBmV40.1 dB280
13 QAM256 729000000 Hz1.9 dBmV35.3 dB1485597211729
14 QAM256 735000000 Hz2.4 dBmV32.9 dB50970381836719
15 QAM256 741000000 Hz2.7 dBmV31.7 dB132309292864
16 QAM256 747000000 Hz2.3 dBmV25.9 dB279761881677

 

Total Correctables Total Uncorrectables

69951703223052



Upstream Bonded ChannelsChannel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power

1 ATDMA 5120 Ksym/sec24200000 Hz44.0 dBmV
2 TDMA 2560 Ksym/sec19400000 Hz43.5 dBmV
3 ATDMA 5120 Ksym/sec30600000 Hz44.8 dBmV
4 ATDMA 2560 Ksym/sec37000000 Hz44.5 dBmV
8 REPLIES
Newcomer

Re: Consistently slow internet speeds, intermittent drop outs

Here is my speed test from Spectrum page today:

Expert

Re: Consistently slow internet speeds, intermittent drop outs

You have a MAJOR ingress issue from 4G cellular site transmitters located really close as well as 4G Verizon handsets... and from at least 4 carriers.

Get TWC out, a different modem won't fix this, there are bad connecions, either loose or corroded killing these channels. It cannot be fixed on the phone. 

13 QAM256 729000000 Hz1.9 dBmV35.3 dB1485597211729
14 QAM256 735000000 Hz2.4 dBmV32.9 dB50970381836719
15 QAM256 741000000 Hz2.7 dBmV31.7 dB132309292864
16 QAM256 747000000 Hz2.3 dBmV25.9 dB279761881677

verify all your connectors are a tad more than finger tight, including the backsides of wall plates and that there are no extra open splitter ports or any ups/ surge outlet suppressors inline with the coax.

 

Expert

Re: Consistently slow internet speeds, intermittent drop outs

Also, turn off IPv6 on all devices, that modem won't run it and EMTA phone service reliably..

Newcomer

Re: Consistently slow internet speeds, intermittent drop outs

Thank you so much for your speedy reply. I will try to give TWC a call when I have time tomorrow to see if they will send someone out to check on it.

I have also been using the coax cable that they provided me, which is very short. From where/how I had the modem set, there is a small crease in the housing from it being slightly kinked from being so short. I have worried this might be affecting quality somehow so I will also go grab a new one before calling so they can't just try to blame it on that.
Expert

Re: Consistently slow internet speeds, intermittent drop outs

This is broken or loose shields... is there a cell site on your building?

 Should be called in as

"low speeds, intermittent connectivity due to 4G cellular ingress"...

 

 print out the above signal page for the tech....

the bottom 4 channels are unuseable, if they put a s/n meter on the 2 out of spec ones they should see the problem and trace it back to the ingress/egress points.  They also need to use an egress locator/ tester to identify the actual bad shielding... bet they don't have them. 

It cannot be fixed on the phone. 

13 QAM256 729000000 Hz1.9 dBmV35.3 dB1485597211729
14 QAM256 735000000 Hz2.4 dBmV32.9 dB50970381836719
15 QAM256 741000000 Hz2.7 dBmV31.7 dB132309292864
16 QAM256 747000000 Hz2.3 dBmV25.9 dB279761881677

13 is the cell site half of the 729/699 pair and probably T mobile

14 is the cell site half of the 735/705 pair and probably AT&T

15 is the cell site half of the 741/711 pair and probably AT&T

16 is the mobile half of the 747/777 pair and is Verizon.

all the above are using pole top "inverted trashcan" antenna's on utility poles that look like this:AFixYnv

 

Newcomer

Re: Consistently slow internet speeds, intermittent drop outs

There is no cell site on my building. This is a small apartment building built in 1964 and the rent here is low for the area because the units are not very well maintained/updated. 

 

I do live very close (~3/4 mi) to the university which I believe has a few cell towers, as well as a few public service/city buildings nearby that have more. From antennasearch, they show 6 registered towers within 1 mile of me, 5 of them are >100ft.

Expert

Re: Consistently slow internet speeds, intermittent drop outs

make sure they write this down as the issue...:

"low speeds, intermittent connectivity due to 4G cellular ingress  causing low signal to noise ratios and unacceptable uncorrected and corrected bytes on multiple channels"

Expert

Re: Consistently slow internet speeds, intermittent drop outs

with enclosures at the bottom like this:

dFFsiiZleft is a siren remote, right is a Verizon 4G site, it's on a dedicated fiber run