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Topic on Talk:Troubleshooting guide/Network and multiplayer problems

This page shows the changes between two versions of a post by Mirh in the topic "Lag checklist" on Talk:Troubleshooting guide/Network and multiplayer problems. You can see other versions of this post at its history page.
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1. Check for physical layer problems (including exquisite [https://www.phoronix.com/scan.php?page=news_item&px=Intel-Linux-Radio-RFIM voodoo] like [https://www.smallnetbuilder.com/wireless/wireless-features/crappy-wireless-performance-it-could-be-your-laptop/ cpus] or [https://old.reddit.com/r/technology/comments/136g7y/usb_30_has_been_found_to_cause_interference_that/ USB 3] interfering with [https://www.pcmag.com/opinions/wireless-witch-the-truth-about-usb-30-and-wi-fi-interference wifi], or bugged devices flooding the [https://twitter.com/crazysim/status/1521738425396695040 internet] ''or'' [https://www.sciencetimes.com/articles/27435/20200924/old-tv-wipes-out-villages-broadband-telephone-service-more-18.htm electrical] network), e.g. if at least LAN operations are stable.
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1. Check for physical layer problems (including exquisite [https://www.phoronix.com/scan.php?page=news_item&px=Intel-Linux-Radio-RFIM voodoo] like [https://www.smallnetbuilder.com/wireless/wireless-features/crappy-wireless-performance-it-could-be-your-laptop/ cpus] or [https://old.reddit.com/r/technology/comments/136g7y/usb_30_has_been_found_to_cause_interference_that/ USB 3] interfering with [https://www.pcmag.com/opinions/wireless-witch-the-truth-about-usb-30-and-wi-fi-interference wifi], or bugged devices flooding the [https://nitter.net/crazysim/status/1521738425396695040 internet] ''or'' [https://www.sciencetimes.com/articles/27435/20200924/old-tv-wipes-out-villages-broadband-telephone-service-more-18.htm electrical] network, or just [https://www.smallnetbuilder.com/wireless/wireless-features/wi-fi-ping-spikes-causes-and-fixes/ unluck]), e.g. if at least LAN operations are stable.
  
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2. Do the usual speedtest business. Contrarily to the expectations they usually work with, latency (and in particular jitter) are more important than bandwidth.  
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2. Do the usual speedtest basic counterchecks. Though contrarily to the expectations they usually work with, latency (and in particular jitter) are more important than bandwidth.  
  
 
3. Make sure there are no lost packets. To be the most fair this should be done against whatever your server IP is, but usually <code>ping -t www.google.com</code> for a minute or two is just enough already.  
 
3. Make sure there are no lost packets. To be the most fair this should be done against whatever your server IP is, but usually <code>ping -t www.google.com</code> for a minute or two is just enough already.  
  
 
4. Last and perhaps least, maybe there's some [[Glossary:Port forwarding|NAT/port]] trickery going on.
 
4. Last and perhaps least, maybe there's some [[Glossary:Port forwarding|NAT/port]] trickery going on.