How fast does the internet have to be in order four computers to use SL at the same time?Thanks <3

[Alisa00]

How fast does the internet have to be in order four computers to use SL at the same time? Thanks <3

[Codewarrior Congrejo]

If i understand your questioncorrectly you want to have 4 computers bound in a LAN (local area network) to run secondlife at the same time?

It all depends on the ethernet cards each of the computers has and what kind of computer it is and how much data it can process (connection wise, as well as other processing) Plus it may be mentioned that some packages offered by ISP providers prohibit running more then one computer. (but that is something you can only see in your contract with your ISP or ask your ISP's support)

Generally of course the more bandwith you have available with your connetion the easier it will be. (1.5 Mbs and above)
For 'best' experience it should serve around 1.5 Mbs for each of the 4 computers but that isn't necessarily needed: 

there is something else to contemplate that would not require you to change your whole internet package in order to just play some evenings together in the same room with your friends:

If each of the 4 computers sets their Secondlife client, to a bit lower bandwdith usage ( you will have to experiment a bit until it runs stable for all of you):

1. Go to Me menu > Preferences.
2. In PREFERENCES window, click Setup tab.
3. Move Maximum bandwidth and lower the amount
   
   * it should be mentioned here that too low settings might disable the voice capability. or other experiences.
   So as said you need to tweak a bit and see what works best for all 4.

This will throttle how much of the available bandwidth each viewer will use.

Also the settings of the router which handles this local network can throttle or manage the all over traffic and put it so that  each client has a certain amount available (depending on the router software and settings it offers)

You also should ensure that all 4 computers are hooked up with cable to the switch or router and not by wifi.

However, if you have any situation where all 4 computers will most likely be all the time running secondlife at the same time you possibly should switch to a DSL 6000 or similar. Which would be something to consider in general when there also would be also other games running at the same time or other bandwidth demanding applications.

But in general as being said above it is not needed. There are many ways to tweak these things. 

 

[Rolig Loon]

By "fast" I assume you are asking about bandwidth, which is not truly about speed but about capacity.  There's no strict answer, but you can get a rough idea by looking at your Statistics Bar (CTRL + Shift + 1).  There's a performance bar near the top of the display labeled Bandwidth.  That's the actual amount of bandwidth that your own viewer is using at the moment. If you TP into a new region or just turn around and look at a different view, you'll see that it jumps up suddenly to 1000 kB/sec or more.  Then it settles down to a value typically well below 500 kB/sec, unless you are in a very busy sim.  That can give you an idea of how much bandwidth you are usually demanding and how much you need at those peak times.  If you have 2000 kB/sec Internet service, you should find that normally 3 or 4 computers could access SL at once without robbing each other for bandwidth.  If you are all in busy areas at once and are peaking out at more than 1000 kB/sec, though, there won't be enough bandwidth to go around, so you'll start to lag.

There are complicating factors, of course.  You should count on about another 20% of that "normal" value if you are using streaming media or Voice, each of which need their own bandwidth allocation on top of what your viewer demands.  Also, if you are using wireless -- a bad idea anyway -- you can expect to lose up to 50% of your bandwidth.  Also, increasing draw distance, using the Ultra setting for graphics setting, enabling shadows and lighting, and other factors will drive up your needs for bandwidth.