Rocky Posted May 18, 2015 Share Posted May 18, 2015 (edited) So my internet speed has been hijacked someone - on speedtest you can see the speed starts at 143Mb but quickly starts dropping, and keeps dropping until it is under 100Mbit - which is 60 Mbit less than it is capable of. https://youtu.be/SsKbjeKRJU8 If I boot into safe mode with networking, I get the full 160Mb download speed, solid. So at the moment I am going through all running processes to see if I can figure out which one is causing this strange bottleneck. Edited May 18, 2015 by Rocky Link to comment Share on other sites More sharing options...
Halli~SPARTA~ Posted May 18, 2015 Share Posted May 18, 2015 With that speed all of Glasgow could be on . Link to comment Share on other sites More sharing options...
Rocky Posted May 18, 2015 Author Share Posted May 18, 2015 LOL, maybe so. Link to comment Share on other sites More sharing options...
Pringle~SPARTA~ Posted May 19, 2015 Share Posted May 19, 2015 Regarding that speed: What I'm allowing myself to say: What I'm thinking: Link to comment Share on other sites More sharing options...
Zeno~SPARTA~ Posted May 19, 2015 Share Posted May 19, 2015 Have you got something like malwarebytes http://www.malwarebytes.org/lp/sem/b/1/?gclid=CJXJs_D-zMUCFSP4wgod7hwA_w Maybe something really has hijacked your internet You could also try using Soluto to identify all processes in order to eliminate all unnecessary ones in the hope that one of those is the hog. https://www.soluto.com/home Other than that I defer to those with more knowledge. Link to comment Share on other sites More sharing options...
PANiC Posted May 19, 2015 Share Posted May 19, 2015 The netstat command might be of use, Luggs told me about that and he probably would have aome input on your issue if he ever read the forum :] https://perishablepress.com/monitoring-internet-activity-via-the-command-prompt/ Look for process explorer for a detailed view of all the things running on ypur pc Link to comment Share on other sites More sharing options...
Rocky Posted May 19, 2015 Author Share Posted May 19, 2015 (edited) I tried netstat, I ran it in safe mode, then compared it to one with a normal boot, there are some difference which I will investigate further - thanks. Never heard of soluto I will look into that, thanks. (edit, is that the right link.... looks like webhosting or something lol) Pringle, I guess you don't want to hear about my colleague at agr-s.com, Deosl, he has 500Mb download AND UPLOAD!!! btw, I'm not getting butthurt over what is essentially still a great speed - fact is my gaming is being affected too so something needs fixed Edited May 19, 2015 by Rocky Link to comment Share on other sites More sharing options...
Zeno~SPARTA~ Posted May 19, 2015 Share Posted May 19, 2015 Weird, maybe just google soluto. I hope you find out whats going on, keep us posted. Link to comment Share on other sites More sharing options...
Luggage~SPARTA~ Posted May 19, 2015 Share Posted May 19, 2015 Hmm, the fact that you initially get the speed, and then it drops doesn't point me towards something taking the bandwidth. For that behaviour to make sense the 'stealer' would have to always be idle at the start of the test, and then decide to rapidly jump in. If your testing consistently shows 160 falling like a stone to 100, then it isn't something stealing the bandwidth - if it were I would expect to see you struggling to peak out over the 100 from the outset. On the basis that you can get 160 solid on a safe boot then that stinks more of software/firewall or something similar dogging the ability to get stuff up the IP stack at a guess. You have proven the hardware has nothing holding it back. I am a brave soul and as I have a modem firewall - I disable windows firewall, and I don't run any virus software (because it can slow things down inspecting the packets as they tend to have firewalls built in now) . Are you in a position on a standard boot to even temporarily achieve that similar status of disablement and retest? If you are running windows 8 then a good place to look is the network section of the Resource Monitor. It will indicate the network activity, show you the TCP sessions, and general background chatter going on. Link to comment Share on other sites More sharing options...
Rocky Posted May 19, 2015 Author Share Posted May 19, 2015 Thanks Lugs. Windows 7. So you are suggesting to try disabling windows firewall and AV and windows defender and see if that makes a diff? I don't mind trying that because I'm at the point where as the culprit is not obvious I might just bite the bullet and do a frsj install of windows on a spare SDD I have here. I would like to pin this down though, so I'll keep digging for a few days... Link to comment Share on other sites More sharing options...
Luggage~SPARTA~ Posted May 19, 2015 Share Posted May 19, 2015 Yup, disable software. Installed anything new recently? Link to comment Share on other sites More sharing options...
Rocky Posted May 19, 2015 Author Share Posted May 19, 2015 Good question.... Nvidia 3D drivers, noting else I can think of. Link to comment Share on other sites More sharing options...
Rocky Posted May 19, 2015 Author Share Posted May 19, 2015 Windows defender and Firewall both turned off, same strange drop in speed. Link to comment Share on other sites More sharing options...
Rocky Posted May 19, 2015 Author Share Posted May 19, 2015 I booted into safe mode and ran the speedtest, it started at 150Mb and went UP quickly to a solid 160Mb! That's even faster than I am supposed to get. Boot normally and it starts at 143, then within seconds is below 100Mb,. I have to figure this out... Link to comment Share on other sites More sharing options...
Halli~SPARTA~ Posted May 19, 2015 Share Posted May 19, 2015 The sheep porn will have tae wait a bit ye ken! Link to comment Share on other sites More sharing options...
Krambo Posted May 20, 2015 Share Posted May 20, 2015 Interesting thread Rocky, hope you get this one sorted, sounds like my connection everytime I played WoT. Link to comment Share on other sites More sharing options...
Zathrus~SPARTA~ Posted May 20, 2015 Share Posted May 20, 2015 Hey Rocky... If you have run a malwarebytes scan (get it at www.malwarebytes.org) and it shows no malware then it is likely nothing wrong at all, it is likely your ISP throttling the connection. If you read the fine print; many times they will advertise 150mbs connections but the 150mbs only occurs in what they call a "burst mode". In otherwords it will only sustain the 150mbs for a very short time and then begin to fall off to a speed they are prepared to provide you continuously. If your paying less than $80 per month for the connection then it is likely it is a burst mode max speed. If that is what your connection is doing (I strongly suspect it is your ISP throttling it) there is really nothing wrong with that. Sustained 100mbs is pretty damn good. However if they are claiming you have sustained 150mbs speed then I suspect they have your connection setup wrong in their system causing it to throttle when it sees that "burst rate". Typically connections that will sustain 150mbs are commercial business solution connections that cost about $140 to $175 per month depending on the ISP. If it is a "home connection" most of those are a "burst" style connection. Many ISP's including huge ones like comcast do not have the infrastructure in place in many areas that allow them to sell everyone in a home a sustained 150mbs connection. Link to comment Share on other sites More sharing options...
custard~SPARTA~ Posted May 20, 2015 Share Posted May 20, 2015 Interesting thread Rocky, hope you get this one sorted, sounds like my connection everytime I played WoT. Route to the server it was a pain for a while sorry no thats just Luggs Link to comment Share on other sites More sharing options...
Rocky Posted May 20, 2015 Author Share Posted May 20, 2015 Hey Rocky... If you have run a malwarebytes scan (get it at www.malwarebytes.org) and it shows no malware then it is likely nothing wrong at all, it is likely your ISP throttling the connection. If you read the fine print; many times they will advertise 150mbs connections but the 150mbs only occurs in what they call a "burst mode". In otherwords it will only sustain the 150mbs for a very short time and then begin to fall off to a speed they are prepared to provide you continuously. If your paying less than $80 per month for the connection then it is likely it is a burst mode max speed. If that is what your connection is doing (I strongly suspect it is your ISP throttling it) there is really nothing wrong with that. Sustained 100mbs is pretty damn good. However if they are claiming you have sustained 150mbs speed then I suspect they have your connection setup wrong in their system causing it to throttle when it sees that "burst rate". Typically connections that will sustain 150mbs are commercial business solution connections that cost about $140 to $175 per month depending on the ISP. If it is a "home connection" most of those are a "burst" style connection. Many ISP's including huge ones like comcast do not have the infrastructure in place in many areas that allow them to sell everyone in a home a sustained 150mbs connection. Nice idea but not the issue here mate. Virgin Media publicise their throttling policy, and it is fair - and also not applied to the top tier, ie my 150Mb. Also, throttling would kick in no matter if it was a safe boot or not, so it's not even throttling my some strange tech quirk. I've had two engineers out and they've confirmed the connection into the house is fine by connecting up a laptop - so it is something happening on my PC. @ Halli, funny you should say that, when the ISP engineers were out, I was just waiting on a porn site url autocompleting in my browser as they were testing it - trying to think of an excuse fast LOL! Link to comment Share on other sites More sharing options...
Watchman~SPARTA~ Posted May 20, 2015 Share Posted May 20, 2015 (edited) Are you wireless or hard wired? I had the same problem with my wireless connected PC a while back. 2 visits from engineers to check hardware countless tech support calls found nothing and pointed to it being a conflict within my PC. I spent hours trying to decipher what it might be, without success. In the end I upgraded my line with Virgin, got them to move the box to my study and went wired. By way of proving it was PC specific I had my laptop side by side and it was pushing the maximum line speeds whilst my desktop was getting a fraction of the capacity. Edited May 20, 2015 by Watchman~SPARTA~ Link to comment Share on other sites More sharing options...
Rocky Posted May 20, 2015 Author Share Posted May 20, 2015 Yeh similar effect here watchy. The problem is with the wired connection though. Link to comment Share on other sites More sharing options...
Zathrus~SPARTA~ Posted May 20, 2015 Share Posted May 20, 2015 hmmm.... that is bizarre. do you have ipv6 enabled in the router and on your machine? There were some games awhile back that did not get along well with ipv6. It is possible one could have disable it during setup. Link to comment Share on other sites More sharing options...
Hunter~SPARTA~ Posted May 21, 2015 Share Posted May 21, 2015 I would take a look at your NIC driver. When you boot into safe mode, it should only load a "basic" or "generic" network driver. There could be a flaw in your driver that is not negotiating the windowing size of your TCP connection properly. Link to comment Share on other sites More sharing options...
Rocky Posted May 21, 2015 Author Share Posted May 21, 2015 (edited) The same driver is listed on device manager whether I safe boot or not.... But safe boot has no issues with full download speed. Edited May 21, 2015 by Rocky Link to comment Share on other sites More sharing options...
Zathrus~SPARTA~ Posted May 21, 2015 Share Posted May 21, 2015 (edited) I think something needed to sustain the speed your isp can provide has been disabled or changed from what it should be. I would try uninstalling your network card. reboot and run ccleaner, then re-install the network card... that should theoretically reset everything. Another possibility... This a a long reach out there, but I did have a problem like this... did windows or you inadvertently install the wrong driver package for your network card during an update. I did have a computer a couple of years ago that had all kinds of connection problems. It was constantly losing connection, or suddenly having a very slow connection. It turned out that the drivers for a different network card were installed. They did not match the actual hardware in the machine. The network card maker had two cards that were almost the same model number with the exception of one letter at the end, but they used completely different driver sets. (bad engineering) The owner had installed the driver set for card A, but the machine had Card B. The network card worked, but it was in limp mode and incapable of high bandwidth. I know that is unlikely... but never hurts to re verify everything matches. Also, if you have any "connection booster" software on your machine (software that supposedly increases network card performance) I would uninstall that. Most of those do nothing but screw up your machine. Edited May 21, 2015 by Zathrus~SPARTA~ Link to comment Share on other sites More sharing options...
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