I am using Window Vista, DSL Internet.
My internet for the past week is not good. Throughout the whole day my internet fluctuates, up and down fluctuates speed all day. My DSL download speed always been good, I always get 300KB/sec stable speed, until last week suddenly it start to drop from 300KB/sec down to 6KB/sec, This is a big change, something is definately wrong.
I call my Verizon DSL, they do a line test on their side and they say my Modemn recieve good signal, also the DSL light on my modemn is always solid, so I am sure it recieve good signal. I also try update all the drives (it say all your drive to up to date) and I try unplugging modemn for like 2 hours and plug it back in. The Verizon DSL also reset my whole modemn, and the problem still persist. (so it definately not modemn issue)
I also do a Safe Mode Networking with Verizon, I run my computer in Safe Mode Networking, and the internet speed still drop dramatically starting from 300KB/s down to 6KB/s . Since I am on Safe Mode Networking and this problem still exist, it is definately not any software conflict.
I also scan my computer with numerous of anti-virus: Norton, mcAfee, Kaspersky, Housecall, Esset, including Malwarebyte and lavasoft, and found Nothing!! No virus, no spyware! (Unlikely it is virus issue)
I have try many different browser and all the same, very slow download speed. I also do a Pingtest.net and I have a F+ grade, it is something wrong
I have try IE, Chrome and Mozilla, all download speed are very slow.
Also, for example, when I go to a voice chat room, I also get the message say internet is not stable, please check your internet connection.
So all that has rules out, now the only option left I can think of is something wrong with my Vista hardware. How can I know if something is wrong with my hardware?
My computer is very hot though, and it have some sound like something is running inside. Maybe my computer is overheated? How to know if the NIC or network card inside my computer is not working correctly?
My internet so slow right now, I am so frusterated, any opinion is greatly appreciated. Thank you
Edited by AOTS84, 16 August 2012 - 09:36 AM.