Question Recent Unexplained Increasing Latency (ping) Times (long read)

Riotvale

Member
Dec 20, 2009
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Hopefully someone reading this can provide a bit of insight regarding this issue we’ve been having at home recently. My brain is fried thinking about it.

The Issue:

Earlier this week (Monday, March 9), I noticed that while playing some WoW that everything started lagging. Cast times, looting, walking in a straight line even – my ping to the servers (usually always between 20-50ms), suddenly started to spike higher and higher over a period of minutes. Going from 21ms to 100, to 300, 500 ,700, 1000, 1500, 2000 ms. After a period of time – no pattern really, sometimes 10 minutes, sometimes an hour, it would go back down to the initial 20-50ms, only for the same thing to repeat itself minutes later. I thought maybe it was just some sort of isolated incident, but this kept happening throughout the day. I slept on it and hoped for the best the following day.

Unfortunately, the same thing was happening the next day and every day even till now. It happens for many different games I’ve tried, all which yield the same results:

WoW – Casting times, looting, walking, moving things around in the inventory, accepting and turning in quests; all this makes the experience unplayable.
Starcraft 2 – delayed response on all commands causing frames to squeeze everything in while issuing commands. The ping spikes fluctuate up and down it seems.
Diablo 3 – All mobs skip around on screen, and character gets stuck in animations only for all the frames to catch up shortly thereafter. Pings show anywhere from 75ms – 1500ms
Path of Exile – As if the servers weren’t hammered enough from the start of the new league, the latency spikes in this game are the most prevalent and noticeable. Nigh unplayable.
Minecraft - Placing down blocks and mining blocks comes with delays of all sorts. Moving in a straight line shows how unstable everything is.
Wolcen – the third ARPG I’ve tried and as above, the results are the same as the others.

All of these programs had the same pattern repeat over and over. Starting off with a ‘normal’ connection which worsened. Sometimes this would take 5-10 minutes for the ping to start increasing, sometimes ping would be high right off the bat.


Here is my setup:
1 Computer Wired to modem
3 Computers Wireless (2.4ghz or 5ghz) – also to modem – I don’t have a router yet; was planning on buying one, but then ran into this whole issue.
Gigabit down, 30mbps UP

At first I thought all this was isolated to the wired PC (the main PC). All these issues manifest themselves on the other 3 wireless connections. Same programs, same issues with the same parameters.

What I’ve done so far:

Speedtest.net, fast.com have reported somewhat normal numbers: ~840-950mbps down and 25-30 up with a 9-11 ms ping. There are times though that the reported numbers are wildly lower though; hovering in the 40mbps-200mbps down. I can’t explain that.
I’ve reached out to my ISP multiple times regarding all this. They sent out a technician on Thursday March 12. He thought that the connectors on the junction box at the side of my house were aged, and so he replaced them and assured me all would be fine That was the only thing he really did other than checking out the connection speed of the network. Of course 30 minutes after he left, the problems started rearing its head again. The ISP has run a full gamut of tests on their end and have reported no problems that they can see at all. Pings have reported normal, no dropped/lost packets. They will be sending a “network specialist’ sometime next week.
I’ve run full antispyware, adware, malware, virus tests on the machines hoping to make sure that there isn’t some intrusion which is causing the problem. All results have come back negative, but I’m not versed enough as to whether these “complete” scan tests are enough.
Thinking at first that it was limited to my main wired PC (i7 3930k @ 4.0ghz, GTX 1080ti, EVO 500 SSD), I thought it was the SSD failing. Running the Samsung Magician diagnostic tool reported everything as fine. Obviously, after testing the other wireless pc’s (approx. same specs) showed that this problem was not isolated to just the main wired rig.
I thought maybe some other device in the household was sucking up a large amount of bandwidth, so I disconnected every other device in the house
-Nvidia Shield
- PS4 pro
-PS4 Slim
- 4 Switches(1 wired, 3 wireless)
-Ipads, iphones,
- Roku stick
- Roku TV

Pretty much everything connected wireless or hardwired in. I isolated it so that it was ONLY the main PC that was connected. That didn’t change a thing

The main thing I’m concerned about are not the speeds, as I’m clearly getting everything as advertised. It’s the pings that are making everything completely unplayable. Why this all of a sudden happened this week beats me. I’ve lived in this house for almost 8 years now and I’ve never experience this issue before. The ISP cant’ find anything at all on their end which might be causing the issue. The best they can do is send out their network specialist, and I’ll have to show him the issues I’m having first hand.

If anyone has any information that they can point me to, that would be greatly appreciated. Perhaps I’m missing something basic and hopefully it’s just something I’ve overlooked.
Thanks for reading, be safe!
 

sdifox

No Lifer
Sep 30, 2005
94,964
15,104
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I'm in Canada with Rogers, the modem is this one :https://www.rogers.com/customer/support/article/learn-more-about-the-rogers-ignite-modem#!
I'm on the Gigabit pkg.


The one you get from the isp tends to be bottom of the barrel.


Actually the issue you are describing might not be the router, could be the segment is overprovisioned. You need the log to talk to rogers support. Check your manual on how to get the cable modem log.
 

mnewsham

Lifer
Oct 2, 2010
14,539
428
136
Coronavirus isn't impacting the backbone network too hard, but your local connection could be highly congested, either at the neighborhood level, or community level (or both)
 

Riotvale

Member
Dec 20, 2009
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The one you get from the isp tends to be bottom of the barrel.


Actually the issue you are describing might not be the router, could be the segment is overprovisioned. You need the log to talk to rogers support. Check your manual on how to get the cable modem log.
I figured that their modems wouldn't be the best out there, but it's concerning because I've been using it for a long time now with no issues, when all of a sudden this past week it just goes all wonky. Also, I guess I should've mentioned it, but i've tried a Hitron CGN3 modem as well with them and it yielded the same results. 2 modems, the old and new with the same increasing ping :(
 

sdifox

No Lifer
Sep 30, 2005
94,964
15,104
126
I figured that their modems wouldn't be the best out there, but it's concerning because I've been using it for a long time now with no issues, when all of a sudden this past week it just goes all wonky. Also, I guess I should've mentioned it, but i've tried a Hitron CGN3 modem as well with them and it yielded the same results. 2 modems, the old and new with the same increasing ping :(

That points to overprovisioning.
 

ch33zw1z

Lifer
Nov 4, 2004
37,760
18,039
146
A couple ideas:

1. Ask ISP to replace device
2. If that doesn't correct it, push it up ISP' chain of command. I agree with others, you could have network congestion.
3. While you work that in the background, inspect you coax cabling, splitters...a cable could be damaged, a splitter could be on the way out, a cable is loose, etc...
 

Riotvale

Member
Dec 20, 2009
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I should point out that we live in a detached home in the suburbs in a newish (~10 years), smallish neighbourhood.

A couple ideas:

1. Ask ISP to replace device
2. If that doesn't correct it, push it up ISP' chain of command. I agree with others, you could have network congestion.
3. While you work that in the background, inspect you coax cabling, splitters...a cable could be damaged, a splitter could be on the way out, a cable is loose, etc...

As others have mentioned as well, pointing to network congestion. Wouldn't the ISP have logs of that? I'm learning a lot here today.

Thank you ALL for your ideas and help.
 

ch33zw1z

Lifer
Nov 4, 2004
37,760
18,039
146
I should point out that we live in a detached home in the suburbs in a newish (~10 years), smallish neighbourhood.



As others have mentioned as well, pointing to network congestion. Wouldn't the ISP have logs of that? I'm learning a lot here today.

Thank you ALL for your ideas and help.

You're neighborhood location or size doesn't necessarily matter. It's about how the ISP patches together their Network

ISP has logs, sure, that team of people isn't accessible to level 1, definitely not you, and not the dude in the truck.

You can only be the squeakiest wheel possible, and if there's any competition, threaten to switch lol
 

Riotvale

Member
Dec 20, 2009
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0
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You're neighborhood location or size doesn't necessarily matter. It's about how the ISP patches together their Network

ISP has logs, sure, that team of people isn't accessible to level 1, definitely not you, and not the dude in the truck.

You can only be the squeakiest wheel possible, and if there's any competition, threaten to switch lol

Alright, got it! Tomorrow morning I will check the physical cables and connections, and then contact to escalate. I'll also see how (if possible) to get my own logs.
 

ch33zw1z

Lifer
Nov 4, 2004
37,760
18,039
146
Alright, got it! Tomorrow morning I will check the physical cables and connections, and then contact to escalate. I'll also see how (if possible) to get my own logs.

Good luck!

It's worth noting that you want the modem to be as close to the main drop into the house split-wise. You don't want more than one splitter between the main drop and the modem. That was the rule of thumb, and I don't thinks it's really changed.

You may end up getting some new splitters, just to rule it out. IMXP, an ISP's wheels don't turn fast
 

sdifox

No Lifer
Sep 30, 2005
94,964
15,104
126
I should point out that we live in a detached home in the suburbs in a newish (~10 years), smallish neighbourhood.



As others have mentioned as well, pointing to network congestion. Wouldn't the ISP have logs of that? I'm learning a lot here today.

Thank you ALL for your ideas and help.


Cable modem log will show a lot of errors along the line of server failed to acknowledge in the allowed time.


Ask me how I know :awe:
 

Riotvale

Member
Dec 20, 2009
88
0
66
Good luck!

It's worth noting that you want the modem to be as close to the main drop into the house split-wise. You don't want more than one splitter between the main drop and the modem. That was the rule of thumb, and I don't thinks it's really changed.

You may end up getting some new splitters, just to rule it out. IMXP, an ISP's wheels don't turn fast

Thanks for all the advice.
The modem is probably less than 10 feet where it comes from into the side of the house into the basement. I was originally thinking of moving the modem to the middle floor, but not until this whole mess gets sorted out.
 

VirtualLarry

No Lifer
Aug 25, 2001
56,327
10,035
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Note also, that besides the increased local network load from coronavirus self-isolationers, there have been recent firmware updates pushed to cable modems and gateways, I think specifically for ones with Broadcom chipsets, to fix a wide-spread exploit called "Cable Haunt". (See Security forum here for a thread on that.)

It's possible that on your gateway, the patch may have caused a performance regression. Or just a lot of people on your node are suddenly staying home, and overloading the neighborhood connection(s). Or your wiring is going.
 

DaaQ

Golden Member
Dec 8, 2018
1,310
944
136
Any idea what your transmit and receive levels are?

Also traceroutes would be helpful to know if its within ISP or outside of ISP network.
 

Fallen Kell

Diamond Member
Oct 9, 1999
6,036
430
126
Thanks for all the advice.
The modem is probably less than 10 feet where it comes from into the side of the house into the basement. I was originally thinking of moving the modem to the middle floor, but not until this whole mess gets sorted out.
While typically it is best to have the modem off the first split inside the house, it is not always required. It all depends on the signal strength to your house. In some cases, the first splitter is dealing with too high of a signal strength because the cable co understands that most houses have 2-4 cable splitters inside and wants to make sure the signal is strong enough to still work on the device that is on that 3rd or 4th splitter.