[SOLVED] High downstream power ?

[ImPrey1]

Okay so im lost on what to do so im here to see if somebody can help me

First off i have internet with suddenlink and im getting random drops in my internet but the internet doesnt go offline just massive ping spikes on any steam game etc. maybe packet loss i really dont know thats why im here

my main coax line in the house goes into a 4 way splitter 7db Shown here
https://www.amazon.com/DIG702870-Regal-WAY-GHZ-SPLITTER/dp/B0018BMV8E

i have one line going to the modem and the other 3 are going to the tvs in the house no other splitters

question one i know that splitter is prob outdated would it be better to get a quality 2 way so one end goes to modem and other goes to the tvs and just have another spliter on the tv end to go to all the tvs ?

question 2 could it just be a bad coax cable from the splitter if so how would i test that ? and what would be a good cable to upgrade to ?

question 3 how can i lower my downstream power without lowering my upstream to much more ive heard downstream is supposed to be within -7 or +7 dbmv and upstream power isnt supposed to be lower than 30dbmv but im not a expert thats why im here

as of right now this is what the up and down streams are reading but when i get massive lag spikes ingame the down steams max goes to the lower 20s


DCID Freq Power SNR Modulation Octets Correcteds Uncorrectables
Downstream 1 11 621.00 MHz 16.87 dBmV 37.94 dB 256QAM 756130863 36 0
Downstream 2 13 633.00 MHz 16.68 dBmV 38.26 dB 256QAM 720170911 292 0
Downstream 3 14 639.00 MHz 16.60 dBmV 38.26 dB 256QAM 699719574 1477 0
Downstream 4 15 645.00 MHz 16.91 dBmV 38.26 dB 256QAM 696514359 3640 0
Downstream 5 18 663.00 MHz 17.11 dBmV 38.98 dB 256QAM 715123889 71 911
Downstream 6 22 687.00 MHz 16.10 dBmV 38.26 dB 256QAM 758306163 353 0
Downstream 7 25 705.00 MHz 14.59 dBmV 37.09 dB 256QAM 771896800 33 0
Downstream 8 26 711.00 MHz 14.52 dBmV 36.84 dB 256QAM 791105023 29 0
Reset FEC Counters
Upstream
UCID Freq Power Channel Type Symbol Rate Modulation
Upstream 1 10 28.70 MHz 32.50 dBmV DOCSIS2.0 (ATDMA) 5120 kSym/s 16QAM
Upstream 2 12 19.90 MHz 31.29 dBmV DOCSIS2.0 (ATDMA) 2560 kSym/s 64QAM
Upstream 3 11 23.50 MHz 32.29 dBmV DOCSIS2.0 (ATDMA) 2560 kSym/s 64QAM
Upstream 4 9 35.50 MHz 33.54 dBmV DOCSIS2.0 (ATDMA) 5120 kSym/s 64QAM

ive heard the uncorrectables tab is for packet loss and it does have some numbers on that line but i dont really know much about this stuff so why would it show any thing on that line


my router is a netgear r7000
my modum is a arris 822tm

just ordered a new nighthawk 1150v modem bc i know the one i got is outdated but i wanna fix this signal problem before i change modems

i am running all these tests from my gaming pc wired not even a foot away from the router and modem and there no more than 5 devives on the wifi

if you cant tell on downstream line 5 shows uncorrectables as 911

 

[bill001g]

It is not likely the splitters or the cables. They actually make the signal worse ....ie less. This is too much signal from the ISP.

The upstream power does not work the way you think. That is transmit power and when the ISP gets too much signal it tells your modem to lower it value. If you put in a attenuator to lower the signal the ISP would just request your modem send at a higher rate. So a worse signal makes the upstream power too high not too low.

I would talk to the ISP they can put in antenuators and test it is correct. Now if it really was only the downstream they make attentuators that only do the frequencies used for downstream. You will notice they are very far apart in frequency.

 

[ImPrey1]

It is not likely the splitters or the cables. They actually make the signal worse ....ie less. This is too much signal from the ISP.

The upstream power does not work the way you think. That is transmit power and when the ISP gets too much signal it tells your modem to lower it value. If you put in a attenuator to lower the signal the ISP would just request your modem send at a higher rate. So a worse signal makes the upstream power too high not too low.

I would talk to the ISP they can put in antenuators and test it is correct. Now if it really was only the downstream they make attentuators that only do the frequencies used for downstream. You will notice they are very far apart in frequency.

so youre saying if i get a attenuator hook it on the end of where i plug the coax into the modem it would lower just the downstream?

would this be a good one or do you have a better option?
https://www.amazon.com/gp/product/B07882H96R/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

and do you think that high of a downstream would cause me to get ping drops or slow speeds at certain times?

 

[bill001g]

Power levels out of the recommended level cause all kinds of strange issues. Packet loss would be the most common but sometime you see even things like random modem reset because the modems control traffic is having issues talking to the ISP.

That one might not be large enough you really want to try to get it to zero. In addition you actually DO want to lower the upstream levels. You can not actually see the real upstream levels. This is the level that the ISP is seeing you modem at. You can only see how much power you put into the wire not how much is coming out.
What a low number on upstream means is the ISP is seeing too big a number...just like your are. To compensate they ask your modem to transmit at lower power. If for example they had trouble hearing your modem because the number was too low they would ask your modem to transmit at more power.
It would be kinda nice if the downstream worked that way and your modem could just request the ISP transmit at lower levels but that ignores that there are likely 100 or more other people sharing the coax and all the data is actually intermixed with the modem taking only what is theirs. Since it is one data stream you can not adjust power for just one user.

I would call your ISP and see if they will come out and fix this for you. Even the level 1 techs know that these numbers are way out of the recommended levels. They can use their meters and actually measure the power and try different attenuation combinations until they get the levels perfect.