aDSL1

ID #1003

Im not downloading at the speed im synced at, why ?

You will not always be able to download at the maximum of which the modem is connected. The speed of which you downloading files, music, videos and other internet content is determined by several factors.

1. Source bandwidth

If you are trying to download from say another internet user, their upload speed will be very limited compared to you download speed. Also a lot of webservers these days will restrict the speed that clients are able to download to save the server from being overloaded by high speed links.

2. Distance, congestion and latency.

The further a connection is away ( latency ) will reduce the maximum download speed regardless of the amount of upload that server has. If a server or host is heavily congested it will also reduce the download speed to the client.

3. Back channel

Most internet data is TCP, which basically means a small amount of data needs to be sent in order for data to be received. If you are already using your link to send a lot of data, good example of this is seeding p2p, it will limit these ack and req packets needed to download at high speeds.

Where possible try and find the closest link or mirror to your physical location e.g. a mirror based in the same state that you live in, this will give you the best chance to get the best speed possible.
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Last update: 2008-10-07 19:51
Author: Nathan Ridge
Revision: 1.0

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