What are all the possible reasons for slow net speed?

Question

I tried out defragmentation, disk clean up and virus check. But still my net speed is not up to the mark. I am sure it s below its normal.

Answer 1

Here's the following reason for slow transmission speeds.

1) Poor connection between you & the server you're connecting to. Sometimes a network hub goes down & your connection has to be re-routed on lesser-used hubs as a slower speed.

If a key network hub (pretty much within 5 hops of your connection, if you're using a router) goes down, it can severely cripple (if not kill) the connection for everybody that uses it.

2) You're connecting during "Internet Rushhour". Within the US, it's normally from 12:00 PM to 4:00 PM Eastern Time (which covers the noon hour for the major 4 time zones in the US). This is when most of the computers are online.

3) Network congestion on the server. There's just too many people trying to get onto the network at one time or too many users are download from the server.

4) Local network congestion. This occurs when you're sharing an internet connection with others & a lot of traffic going on locally. This may be due to a lot of audio / video streams going on while you're doing lower-bandwidth activities (like web-surfing or downloading stuff)

5) Unwanted Network users. This is possible with unsecured WiFi routers as practically anybody in range will be able to connect to it. Unwanted users can cause local network congestion, but may be hard to notice since these users can come & go whenever they please.

6) Shared Bandwidth. If you're on a Satellite or Cable connection, you're sharing bandwidth with others (like your neighbors). If there's too many people using the same connection at the same time, the connection speed for everybody slows down (this is similar to issue #4).

7) Incorrect Bandwidth Capping. While this is highly unlikely, it's possible that your ISP incorrectly configured your broadband modem & you're getting stiffed with a slower connection.

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Besides issues #5 & 7, there's nothing much you can do about it.

For Issue #5, it can be remedied by securing your WiFi router through various ways (WEP / WPA encryption, MAC filtering & disabling SSID broadcasting).

For Issue #7, you'll probably want to check with your ISP to ensure that the bandwidth caps are properly set.

For Issue #4, you could try to control how others use the internet connection... but they'll most likely blow you off unless you can control the router(s).

Answer 2

Yes, I have seen alot of different issues when it comes to slow/not working internet connections. Most of the time it is spyware. This can easliy be fixed by downloading Spybot Search & Destory from www.safer-networking.org and http://www.microsoft.com/athome/security/spyware/software/default.mspx from Microsoft. Both of these programs are free and do a good job cleaning. However I recommend you use both because sometimes one will miss some spyware while the other picks it up.

Another issue I have seen is when users expect megabytes when it is megabits. See there is a differnece in bytes and bits. It takes 8 bits(digits) to equal 1 byte. So as you can see megabits would be slower speed then megabytes. Usually you can tell by the abbreviations for example MB stands for Megabytes cause it is capitalize and mb stands for megabits.

Again there could be something that is slowing your connection down through the network. Where the wires are causing loops and data errors.

I think you should call your ISP.

Answer 3

Have you gone over your download limit and been slowed down as a consequence? Defrag etc won't help your net speed...
Do you have a wireless router and someone is stealing your connection?
It might just be some sites that are on a slow server...
Your best bet would to call your ISP and explain your problem...
The problem being a virus or spyware would be remote unless there is an unauthorized program continuously sending large packets of data away...

Answer 4

You have got to give up putting round crackpot websites. There isn't any conspiracy to sluggish down the web. If you had a clue as to what the "web" truthfully was once, you could fully grasp how ridiculous this sounds. You have a routing difficulty. It's most likely that your ISP is throttling downloads to proportion bandwidth somewhat extra efficaciously as makes use of get again online. It might simply be a nasty transfer or a soiled line going to wherein you reside. Loading web pages does not take lengthy given that it is customarily textual content, so that you fairly don't want plenty of bandwidth to browse the Internet casually. What you could check out doing, as an alternative of dreaming up black helicopter reviews, i name your Internet supplier and drawback a hindrance name. They will examine it out if you happen to ask them. Have you attempted simply resetting your possess gear? You realize, energy off the modem and router for a minute or so, then energy them again on (modem first, wait one minute, then the router. Then reboot). You'd be stunned how as a rule that little approach works. But then, I bet the shadow govt or the terrorists do not desire you to understand that. By the best way, slightly mystery...I paintings in that massive 5-sided constructing in Washington. We love all of the conspiracy stuff on the web, given that we roll at the flooring in suits of laughter after we learn it. You haven't any inspiration how extremely unsuitable you persons are.

Answer 5

This may be due to some spywares or due to some trojans that are not dtected in normal virus scans. Try using AVG Virus scanner for scanning. If possible do an online scan at trendmicro.com. For detecting spywares try using Ewido Spyware scanner. I think this will sort out the problem.

Answer 6

If you are on at a time of day when most others are, then it can be like the dorm showers . . . low pressure when everybody is in there. Have you tried it in the off hours ? Is it still slow then ? and is it slow at all sites or just some ?

Answer 7

If it doesnt run like i suppose to be and afte those manitance

Check on your firewall sometimes it's usally the blocking
Check for files that you are Sharing aka Uploading
Check to see if you are on wireless and make sure it's seacure so that any one you don't know is not using.
fast way is,
start->run-> type in: cmd->press run
type in: net view
you should see only your computer name in there and the ones you know.
to exit command promopt type in EXIT :)



if all fails. it's your Interenet, they something like to screw you over by make your interent slow. they can adjuect the speed from their central, usally what they would tell you is that during that time something must have happend :).

I was with QWEST DSL, OMG they did to me all the time. to my neighbor and friends.
5mb d/l plan we where only getting 500k :(

Answer 8

perhaps your ISP has oversold their capacity. who is your ISP? capacity can be oversold at many points within their network. or it could be some other issue. without giving specific traceroute or ping it is impossible to answer your question.