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Cazran
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Latency Spikes

Hi,

 

Over the last month or so I've been experiencing latency spikes with any online game I play. They tend to last roughly a second or just under where my ping will spike up to absurd numbers and then settle back down to normal.

 

I am connecting over wireless (Using a high end wireless card - Asus PCE-AC68) which I know instantly I'm going to be asked to try a wired connection in modem mode (Which I will do when I can but it's not possible right now). However I was connecting using wireless without any issue up until recently. 

 

Even over wireless my download, upload and ping are typically better than expected between these spikes but when they do occur it causes rubber banding/stutter/lag depending on the game.

 

 

(Typical connection between spikes)

 

There doesn't appear to be any issues with packet loss between my PC and the router (As shown in CMD) but it does show the latency that there were some latency spikes going as high as 796ms.

 

 

(These tests were done at between 00:00 - Time posted with no other device connected to the wireless other than my PC so results could typically be worse during normal hours)

 

I was wondering If it would be possible for somebody look over my connection/Superhub to make sure all is in order in that side of things. Another post with the upstream and downstream logs will follow.

 

 

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Cazran
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Re: Latency Spikes

Upstream  US-1 US-2 US-3 US-4

Channel TypeN/AN/A2.02.0
Channel IDN/AN/A12
Frequency (Hz)N/AN/A3680000030200000
Ranging StatusOtherOtherSuccessSuccess
ModulationN/AN/A16QAM16QAM
Symbol Rate (Sym/sec)N/AN/A51200005120000
Mini-Slot SizeN/AN/A44
Power Level (dBmV)N/AN/A40.2540.25
T1 Timeouts0000
T2 Timeouts0000
T3 Timeouts0000
T4 Timeouts0000

 

Downstream  DS-1 DS-2 DS-3 DS-4 DS-5 DS-6 DS-7 DS-8

Frequency (Hz)299000000251000000259000000267000000275000000283000000291000000307000000
Lock Status(QAM Lock/FEC Sync/MPEG Lock)LockedLockedLockedLockedLockedLockedLockedLocked
Channel ID6559606162636466
Modulation256QAM256QAM256QAM256QAM256QAM256QAM256QAM256QAM
Symbol Rate (Msym/sec)6.9520006.9520006.9520006.9520006.9520006.9520006.9520006.952000
Interleave DepthI=12
J=17
I=12
J=17
I=12
J=17
I=12
J=17
I=12
J=17
I=12
J=17
I=12
J=17
I=12
J=17
Power Level (dBmV)3.885.164.824.664.494.214.143.84
RxMER (dB)38.2638.6138.2638.2638.9838.6139.8538.26
Pre RS Errors78692683316637563442447655505295
Post RS Errors304276297293306288277299
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Re: Latency Spikes

Hi Cazran,

 

Welcome to the forum and sorry to hear you're getting lag spikes. Thanks for posting your stats, everything looks fine there, no problems with your power levels. I've tried to check your connection from this end but couldn't locate your account so I've sent you a private message requesting some details. Just check the red envelope in the top left for your messages. 

Wireless is quite an unstable medium and is prone to interference from so many factors outside our control that we always ask for wired results first. It's likely that something new has been introduced to the wireless environment that is causing the occasional spike. Sometimes this could be a neighbours new router or a new electrical device being installed in your home. I'm not saying this is the case but just to make you aware Smiley Happy

 


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Re: Latency Spikes

Hi Cazran,

 

Thanks for sending me the information. I've now checked your connection and can find no issues. Your power levels, SNR and contention are all good. I've checked the historical data and there are no spikes or anomalies, the signal remains consistent. Could you try the hub in modem mode and see if you still get the same issue?

Cheers


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Cazran
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Re: Latency Spikes

(Sorry for the delay)

I hooked my PC up to the Superhub and ran a couple more ping tests to the router.

 

Here's the first test showing it hooked up in modem-mode.

 

And here's the second test with it connected wired but without the Superhub being in modem-mode. 

 

These are obviously much better, meaning it sadly must have been down to my wireless connection.

 

However over the last few days my connection through wireless has picked up significantly and the spikes seem to have almost gone, happening only a couple of times throughout the day rather than multiple times a minute which I'm much happier about.

 

Here's another ping test to my router through wireless

I'm much happier with these results.

 

The whole ordeal has tempted me into getting the Superhub moved into the room I have my PC so i'll be looking into that soon.

 

Thanks very much John_G for looking into it for me. Smiley Happy

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Re: Latency Spikes

Hi Cazran,

 

Those ping results do look much better! Wireless is always an unstable medium so you'll get ping spikes and speed drops from time to time, nothing beats ethernet! Smiley Happy

It can cost £99 to move the hub for you so a better option might be to look into power line adapters, these use the electrical circuit in your home so you don't have long trailing ethernet cables all over the place and have almost as stable a connection as ethernet.

Hope this helps Smiley Happy


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