Extremely slow and inconsistent internet connection

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NeufD564

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Hi, I'm having a lot of trouble connecting to the internet at the moment. My usually slow internet connection is almost unusable at the moment. I've read up information on a number of forums but none of the proposed solutions have made a difference for me.

Speedtest.net shows me fluctuate between about 8mbps and 0.2mbps download speed, usually around the 1-3mbps mark. Ping is also very inconsistent, often over 500. This also shows very inconsistent connection:

C:\Users\Harry>ping google.fr

Pinging google.fr [172.217.19.131] with 32 bytes of data:
Reply from 172.217.19.131: bytes=32 time=50ms TTL=51
Request timed out.
Reply from 172.217.19.131: bytes=32 time=391ms TTL=51
Request timed out.

Ping statistics for 172.217.19.131:
Packets: Sent = 4, Received = 2, Lost = 2 (50% loss),
Approximate round trip times in milli-seconds:
Minimum = 50ms, Maximum = 391ms, Average = 220ms

I'm using a WiFi connection (my laptop doesn't have an Ethernet port). Windows 10.

I am on an SFR network (France), shared with 3 other flatmates. We usually all experience slow internet at the same time.

Help would be much appreciated,
Harry
 

TerryNet

Terry
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Has anybody tested an ethernet connection? Sure would help you to determine if this is or is not only a wireless issue.

See if you can capture and show the following for a good time and for a bad time ...

Please attach a screen shot of the Networks page (don't collapse the Radar, Connection or Signal History) of the Xirrus Wi-Fi Inspector. If you need help with a screen shot see TSG Posting a Screenshot. FWIW to take screen shots with Windows Vista or latter I prefer to use the built-in Snipping Tool.
 

NeufD564

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I'm sorry, I'm not sure whether anyone else has tried a wired connection and can't find out at the moment either.

Internet is pretty poor right now... here's the screenshot:
upload_2016-4-5_23-9-59.png
 

TerryNet

Terry
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Very good strong signal, but we can't see most of the other networks. Are there any other networks with a strong signal on channel 1 (or 2 or 3)?
 

NeufD564

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Found it... what qualifies as strong signal?
upload_2016-4-5_23-22-56.png
 
Last edited:

NeufD564

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My internet speed is suddenly very quick.

Speedtest.net results:
upload_2016-4-5_23-32-59.png

CMD ping test:
C:\WINDOWS\system32>ping google.fr

Pinging google.fr [77.154.221.214] with 32 bytes of data:
Reply from 77.154.221.214: bytes=32 time=44ms TTL=56
Reply from 77.154.221.214: bytes=32 time=54ms TTL=56
Reply from 77.154.221.214: bytes=32 time=48ms TTL=56
Reply from 77.154.221.214: bytes=32 time=43ms TTL=56

Ping statistics for 77.154.221.214:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 43ms, Maximum = 54ms, Average = 47ms

I'm no expert at all but it's now 11:30pm, my suspicion is that I'm the only one still using the internet. Could it really be so slow just because of congestion? Might someone be hogging the bandwidth?
 

TerryNet

Terry
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Found it... what qualifies as strong signal?
Note that signal strength is given as negative number, and closer to zero is better.

Signal has to be -70 or better for any reliability at all. I've found that -55 is good and -40 is really good.

Unless my eyes are playing tricks on me there are at least four other networks that may be causing interference. Another network with a channel number that differs from yours by less than 5 (that is, channel 1, 2, 3 4, or 5 when you are using channel 1) may interfere. The closer the numbers, the more possibility of interference. And, of course, the stronger the signal the more likelihood of interference.

The attached chart will help you try to determine some other channel numbers to try.

802.11x Channel Overlap.jpg
 

TerryNet

Terry
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my suspicion is that I'm the only one still using the internet. Could it really be so slow just because of congestion? Might someone be hogging the bandwidth?
Certainly matters how many devices are using your wireless network.

Number of devices active on those other strong, possibly interfering, wireless networks may make a difference.

Total users in your area will make a difference if you have cable internet service, but shouldn't matter much if you have DSL.
 

NeufD564

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I thought I'd worked out the problem but it appears not.
I don't have enough bandwidth to watch catch-up TV despite me being the only one in the house using the internet, and fewer local networks than Tuesday that could be interfering...upload_2016-4-7_22-6-55.png
 

NeufD564

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Speed test at 22:08...
upload_2016-4-7_22-11-52.png

Speed test 2 minutes later...
upload_2016-4-7_22-12-16.png

How can it fluctuate so much?
 

TerryNet

Terry
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How can it fluctuate so much?
Off the top of my head, some possible causes ...

Interference from another wireless network (or other wireless source). I understand that in your environment you cannot have a non-interfering channel, but can you try one (e.g., 3 or 10) that has a little separation from the other strong networks?

Bad driver. Make sure you have the latest wireless driver from the laptop manufacturer's web site.

Router failing. Power cycle it. Make sure you have the latest firmware and then reset it to factory defaults and reconfigure.

Unreliable electrical supply. If router is plugged into a surge protector or power strip try with it plugged directly into a wall outlet. Make sure that circuit doesn't get brief "brownouts" (due, for example to a freezer or air conditioner coming on).
 

NeufD564

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Bad driver. Make sure you have the latest wireless driver from the laptop manufacturer's web site.
I've checked and my drivers are up-to-date.

Interference from another wireless network (or other wireless source). I understand that in your environment you cannot have a non-interfering channel, but can you try one (e.g., 3 or 10) that has a little separation from the other strong networks?
I've just done a bit of switching between channels but it makes no difference. Also noticed that SFR WiFi Mobile and SFR WiFi FON (which both have strong signal) automatically change to whatever channel my network is on...
upload_2016-4-8_16-17-48.png
 

NeufD564

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Nothing I've tried has worked. Can you make sense of this?

C:\WINDOWS\system32>ping google.co.uk -t

Pinging google.co.uk [216.58.211.99] with 32 bytes of data:
Reply from 216.58.211.99: bytes=32 time=1420ms TTL=51
Reply from 216.58.211.99: bytes=32 time=232ms TTL=51
Reply from 216.58.211.99: bytes=32 time=123ms TTL=51
Reply from 216.58.211.99: bytes=32 time=2215ms TTL=51
Reply from 216.58.211.99: bytes=32 time=181ms TTL=51
Reply from 216.58.211.99: bytes=32 time=1252ms TTL=51
Reply from 216.58.211.99: bytes=32 time=502ms TTL=51
Reply from 216.58.211.99: bytes=32 time=48ms TTL=51
Reply from 216.58.211.99: bytes=32 time=87ms TTL=51
Reply from 216.58.211.99: bytes=32 time=74ms TTL=51
Reply from 216.58.211.99: bytes=32 time=666ms TTL=51
Reply from 216.58.211.99: bytes=32 time=711ms TTL=51
Reply from 216.58.211.99: bytes=32 time=1694ms TTL=51
Reply from 216.58.211.99: bytes=32 time=411ms TTL=51
Reply from 216.58.211.99: bytes=32 time=125ms TTL=51
Reply from 216.58.211.99: bytes=32 time=126ms TTL=51
Reply from 216.58.211.99: bytes=32 time=48ms TTL=51
Reply from 216.58.211.99: bytes=32 time=780ms TTL=51
Reply from 216.58.211.99: bytes=32 time=1862ms TTL=51
Reply from 216.58.211.99: bytes=32 time=403ms TTL=51
Reply from 216.58.211.99: bytes=32 time=87ms TTL=51
Reply from 216.58.211.99: bytes=32 time=250ms TTL=51
Reply from 216.58.211.99: bytes=32 time=241ms TTL=51
Reply from 216.58.211.99: bytes=32 time=53ms TTL=51
Request timed out.
Reply from 216.58.211.99: bytes=32 time=2391ms TTL=51
Reply from 216.58.211.99: bytes=32 time=339ms TTL=51
Reply from 216.58.211.99: bytes=32 time=95ms TTL=51
Reply from 216.58.211.99: bytes=32 time=2431ms TTL=51
Reply from 216.58.211.99: bytes=32 time=204ms TTL=51
Reply from 216.58.211.99: bytes=32 time=953ms TTL=51
Reply from 216.58.211.99: bytes=32 time=567ms TTL=51
Reply from 216.58.211.99: bytes=32 time=59ms TTL=51
Reply from 216.58.211.99: bytes=32 time=54ms TTL=51
Reply from 216.58.211.99: bytes=32 time=256ms TTL=51
Reply from 216.58.211.99: bytes=32 time=1225ms TTL=51
Reply from 216.58.211.99: bytes=32 time=1412ms TTL=51
Reply from 216.58.211.99: bytes=32 time=741ms TTL=51
Reply from 216.58.211.99: bytes=32 time=50ms TTL=51
Reply from 216.58.211.99: bytes=32 time=46ms TTL=51
Reply from 216.58.211.99: bytes=32 time=399ms TTL=51
Reply from 216.58.211.99: bytes=32 time=111ms TTL=51
Reply from 216.58.211.99: bytes=32 time=45ms TTL=51
Reply from 216.58.211.99: bytes=32 time=670ms TTL=51
Reply from 216.58.211.99: bytes=32 time=165ms TTL=51
Reply from 216.58.211.99: bytes=32 time=50ms TTL=51
Reply from 216.58.211.99: bytes=32 time=56ms TTL=51
Reply from 216.58.211.99: bytes=32 time=50ms TTL=51
Reply from 216.58.211.99: bytes=32 time=55ms TTL=51
Reply from 216.58.211.99: bytes=32 time=239ms TTL=51
Reply from 216.58.211.99: bytes=32 time=44ms TTL=51
Reply from 216.58.211.99: bytes=32 time=895ms TTL=51
Reply from 216.58.211.99: bytes=32 time=834ms TTL=51
Reply from 216.58.211.99: bytes=32 time=70ms TTL=51
Reply from 216.58.211.99: bytes=32 time=49ms TTL=51
Reply from 216.58.211.99: bytes=32 time=63ms TTL=51
Reply from 216.58.211.99: bytes=32 time=44ms TTL=51
Reply from 216.58.211.99: bytes=32 time=40ms TTL=51
Reply from 216.58.211.99: bytes=32 time=44ms TTL=51
Reply from 216.58.211.99: bytes=32 time=46ms TTL=51
Reply from 216.58.211.99: bytes=32 time=55ms TTL=51
Reply from 216.58.211.99: bytes=32 time=45ms TTL=51

Ping statistics for 216.58.211.99:
Packets: Sent = 62, Received = 61, Lost = 1 (1% loss),
Approximate round trip times in milli-seconds:
Minimum = 40ms, Maximum = 2431ms, Average = 466ms
 
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