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Download speed issues connection tanks after few seconds

post #1 of 17
Thread Starter 
So for a few days now i'm having connection issues on my main PC.
When i start a download like Origin trying to update it downloads for a second and then stops same with Steam. When i watch a video on YT it buffers for a couple of seconds and after that nothing. When i try to download something from a website it goes for a second and then nothing.
When i stop and restart the download from Chrome it goes back up for a second or two and tanks again.

Running speedtest it runs at 11Mb/s while my connection is actually 30Mb/s and then after a few seconds it stops and the speed falls and after 20 seconds it will pick up again and fall back. Other computers on the same network seem to work fine and get 30Mb/s.

So i have a "wired" one of thoes over the electrical network thingy's which when i use it on another computer works fine so it seems there is no reason to think this is the problem. Also tried swapping it out with another one which doesn't seem to work.

So anybody got any idea's??

Running in safe mode changes nothing BTW so its not in Firewall or AV which i have been using from the start.
Edited by Stuuut - 1/7/14 at 2:30pm
    
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post #2 of 17
Sounds like there might be a problem with your drivers.

If you are using a wired connection, try uninstalling your Gigabit LAN controller/driver, and reinstalling
If using a wireless connection, go to Device Manager and select the adapter, delete it, and scan for hardware changes to reinstall it. (You might need the driver CD to do this, or download from manufacturer website).

Of course, if it is not the driver, it is most likely on the ISP side.

The next thing you could try is a "power cycle".

To do this, turn off the devices that are connected to the internet in your home. Once the devices are disconnected from the internet, disconnect the power from your cable modem, as well as your router.

Give it a good 10min with everything off.

Power your modem back on, wait until your modem connects to the internet, there should be lights for "internet" or "wifi", depending on your ISP and manufacturer of modem.

Then, plug your router in, and give it a few minutes. Once your router is back online, begin to turn your devices on ONE by ONE.
Many times this procedure can get you back up and running at full speed, keep in mind that at peak internet times (5-9pm) the connection could spike. Again, all this depends on your ISP, location, and speed.


If this fails, you will need to login to your router to make sure that it is not blocking common ports that your browser, steam, origin, etc. might need. There are guides for opening specific ports, and it all starts with the make and model of your router.



All said and done, if you feel like you are still SOL, call your ISP, and have them come out and take a look at the connection, they may install a signal booster, or run new cables through the ground.
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post #3 of 17
Thread Starter 
Quote:
Originally Posted by nramotar23 View Post

Sounds like there might be a problem with your drivers.

If you are using a wired connection, try uninstalling your Gigabit LAN controller/driver, and reinstalling
If using a wireless connection, go to Device Manager and select the adapter, delete it, and scan for hardware changes to reinstall it. (You might need the driver CD to do this, or download from manufacturer website).

Of course, if it is not the driver, it is most likely on the ISP side.

The next thing you could try is a "power cycle".

To do this, turn off the devices that are connected to the internet in your home. Once the devices are disconnected from the internet, disconnect the power from your cable modem, as well as your router.

Give it a good 10min with everything off.

Power your modem back on, wait until your modem connects to the internet, there should be lights for "internet" or "wifi", depending on your ISP and manufacturer of modem.

Then, plug your router in, and give it a few minutes. Once your router is back online, begin to turn your devices on ONE by ONE.
Many times this procedure can get you back up and running at full speed, keep in mind that at peak internet times (5-9pm) the connection could spike. Again, all this depends on your ISP, location, and speed.


If this fails, you will need to login to your router to make sure that it is not blocking common ports that your browser, steam, origin, etc. might need. There are guides for opening specific ports, and it all starts with the make and model of your router.



All said and done, if you feel like you are still SOL, call your ISP, and have them come out and take a look at the connection, they may install a signal booster, or run new cables through the ground.

All of these things have not helped, anything else to try before calling my ISP?
    
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post #4 of 17
Thread Starter 
I might have found the problem i'm using a powerline adapter and when i switch to another socket in the wall it goes up 20Mb/s when i move it to another socket where my other computer is connected i get 30Mb/s which is the same speed that other computer gets.
Its kinda strange tough because i used to get 30Mb/s with the powerline adapter in the same socket it was.

Also i've just found out i'm basically missing half my internet speed on every device in the house. Everything runs at 30Mb/s here over Wifi and via powerline adapter but when i connected a laptop directly to the modem i got 60Mb/s
    
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post #5 of 17
Thread Starter 
Aaaaand the problems have returned....
It seems after some seconds the router is throttling the speed of the powerline adapters. Any body got an idea whats going on? QoS is turned off on the router.
Also the 2nd computer using a powerline adapter is having the same issues now where the speed drops to 0 after a few seconds when you start a speedtest or download and then it picks it back up again but really spiky where the connecting is fluctuating alot.
    
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post #6 of 17
So your ISP is cable, DSL, or PL?
post #7 of 17
Thread Starter 
Quote:
Originally Posted by john55576 View Post

So your ISP is cable, DSL, or PL?

Its cable
    
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post #8 of 17
It may be your ISP throttling your bandwidth. Disconnect everything except directly to the ISP and one machine. Then test individual components.
It might be adware or malware on your PCs consuming bandwidth. Run net stat in command prompt as soon as windows starts and see what is connecting.
It might be harmonic distortion within your electrical system with the PL.
It might also be a broadcast storm in your LAN with the PLA looking for devices.
post #9 of 17
Thread Starter 
Quote:
Originally Posted by john55576 View Post

It may be your ISP throttling your bandwidth. Disconnect everything except directly to the ISP and one machine. Then test individual components.
It might be adware or malware on your PCs consuming bandwidth. Run net stat in command prompt as soon as windows starts and see what is connecting.
It might be harmonic distortion within your electrical system with the PL.
It might also be a broadcast storm in your LAN with the PLA looking for devices.

I doubt its my ISP throttling because when i plug the powerline adapter directly into the modem is works just fine also wireless works fine on the router. Only thing not working properly is Powerline Adapter connected to the router.
And no adware i believe firewall doesn't see any strange connections and as i said other methods work properly.
Whats harmonic distortion? How can i know thats happening? And whats a broadcast storm?
    
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post #10 of 17
Harmonic distortion might not be the correct technical term, but basically it is the frequency of the broadcasted underlying signal used for networking that might be being disrupted by what amounts to feedback or even competition causing interference with the wave length of the PLA. It could in theory even be an electrical device causing a voltage drop somewhere.

Do you by chance have one of the digital electric meter?

A broadcast storm is a term used to describe too many hello packets that are used to identify a device on the network. It usually happens if there is a loop. It would grow until the entire network bandwidth is completely consumed.
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