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WiFi vs. Ethernet


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WiFi uses the 2.4GHz unlicensed band which just happens to be the same band that cordless phones and garage door openers use. 2.4GHz is also the frequency that water resonates at so high humidity can cause a lot of interference. That last one should give you a hint as to how microwave ovens work, which operate at, you guessed it, 2.4GHz. Large AC motors can also put out a lot of noise in & around the 2.4GHz band.

In short, just about anything can interfere with WiFi.

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WiFi uses the 2.4GHz unlicensed band which just happens to be the same band that cordless phones and garage door openers use. 2.4GHz is also the frequency that water resonates at so high humidity can cause a lot of interference. That last one should give you a hint as to how microwave ovens work, which operate at, you guessed it, 2.4GHz. Large AC motors can also put out a lot of noise in & around the 2.4GHz band.

In short, just about anything can interfere with WiFi.

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Leliel's answer is right on target.  In addition, if you are using a public WiFi connection you will be competing for bandwidth with everyone else in the vicinity.  SL demands a lot of bandwidth and tends to slow way down, freeze, or crash if it doesn't get what it needs, so WiFi is a poor choice compared to a hard-wired connection.

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In addition to what Leliel and Rolig posted you appear to have another problem that exxagerates you problem expotentially.  Your dowload speed.  You said you can maintain a consistant 300 kbps on your Ethernet connection.  That speed is way below any speed that will deliver reliable connections to the SL servers.  SL requires a fast connection to the Internet for good performance........about 500 kbps is a minimum (and that is not really good).  Low cost (translate to slowest) DSL is 768 kbps.  That is "advertised" speed........not what you are likely to get in the real world.  At that connection speed you should expect somewhere between 600 kbps and the advertised 768 (that is mostly due the the physical distance you are from the ISP server).  The 300 kbps is about 6 times the fastest dial up speed (56 Kbps) and nearly half of what you should be getting with DSL  On a cable connection the slow connection speed is about 3000 kbps (for most cable ISP's) so you are about a tenth of that speed.  All those speeds are in a "perfect world" and there is no such thing........but I can tell you, if that 300 kbps is accurate, you  have an ISP problem in addition to the wireless issues.

 

Call your ISP to find out why you are so slow.  It's a wonder you can connect to the SL servers at all....even on your Ethernet.

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I noticed below you said you neighbor uses WiFi. Now WiFI uses several channels, which are really just small frequency slices. So the first thing you should do is use a network browser to find out what channels your neighbors use and set your WiFI router to use the channel farthest from them. Keep in mind that WiFI on the 2.4GHz band uses over lapping channels, that is channel 2 overlaps 1 & 3, 5 overlaps 4 & 6, etc.

 

If you're still having interference problems then when it happens walk around the house and take note of what electrical devices are in use. The things I listed above are the most likely, but it could be anything including your TV, VCR, or even your computer, tho they should be properly shielded so as to not cause interference. How you deal with them depends on what and where it is. You can try moving the device or your WiFI router, putting a large, grounded, piece of metal between them to act as a shield, or getting a better antenna.

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So it is telling me I get 3008kbps. I changed it to channel 8. Boy did I pick a hard password, if I hadn't figured out the hint I would be locked out by now. Going to watch a music video in HD and see how it does. :)

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