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| Thread ID: 80163 | 2007-06-13 12:03:00 | not getting 11Mbps from my wifi | heni72847 (1166) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 558825 | 2007-06-13 12:03:00 | had wireless setup at home for ages but only used it for internet and not data transfer today tried to copy a file and notice it can only reach around 360kb/s this is copying a file on my desktop through window share onto a notebook through wifi my wireless is connected at 11Mbps not 5 or 1 (yea it's b not g) so 11Mbps should give me around 1.3Mbyte/s so what I'm getting is 2.8Mbps.. not even half of 11 I've read somewhere that out of 11Mbps you can only use 5.5Mbps..no idea if this is true but I'm getting slower than that I've also tried getting two notebooks to copy across wifi and the speed they get sums up to around 360 too trying to read and write is even worse..I don't think full-duplex is working or something so yea..anyone can explain? all these speed test done when the notebook is in the same room as the access point.. so not some bad signal problem |
heni72847 (1166) | ||
| 558826 | 2007-06-13 12:16:00 | Possible interference due to other electromagnetic-wave emitting electrical appliances, perhaps? (e.g. microwave oven) Have you tried placing the laptop directly just beside the access point and see what speeds are you getting? Cheers :) |
Renmoo (66) | ||
| 558827 | 2007-06-13 12:33:00 | see the weird thing is that on the notebook it says I'm connected at 11Mbps and yes I've placed my notebook next to the AP and get same results sometimes if I do take my notebook too far away from the AP speed do drop to 5Mbps but that is not what I'm concerned about right now oh I've also scanned and looked at the channels my neighbours are using and avoided channels close to theirs I've got no wireless telephone and no pie cooking in microwave |
heni72847 (1166) | ||
| 558828 | 2007-06-13 13:08:00 | Is Vista involved here (support.microsoft.com)? | sal (67) | ||
| 558829 | 2007-06-13 13:08:00 | nope just XP | heni72847 (1166) | ||
| 558830 | 2007-06-13 13:52:00 | um, are you getting your BYTES confused with BITS? a common misconception is Mbps is the same thing as MBps, and they are not. the upper case B represents Bytes and the lower case b resprsents bits. 8bits make 1 Byte, so 11Mbps = (11/8)MBps = 1.375MBps but that isn't as low as 0.360MBps - weird, even 5.5Mbps comes to 0.688MBps remember wireless is prone to interference; any high tension power lines overhead? cellphone? microwave oven? cordless phone? metallic objects? another possibility is that the bandwidth is being used by other processes.... |
motorbyclist (188) | ||
| 558831 | 2007-06-13 13:53:00 | actually, after a re-read of your post i think you can tell the difference, owell - i forgot to account for the 1024 and used 1000 between kilo and mega etc anyway | motorbyclist (188) | ||
| 558832 | 2007-06-13 15:42:00 | Look in the wifi device settings make sure they are matched? packet size turbo etc? tx burst and other options like tcp window. | apsattv (7406) | ||
| 558833 | 2007-06-13 20:27:00 | no turbo or burst on this AP it is a ZyAIR B-1000 so it can only deliver 802.11b any settings I can see is related to security I'm using total commander to copy files across so I can get a speed reading is there any other way to see the speed? although I think total commander's values are not wrong.. also does window file share got something to do with the slow speed? |
heni72847 (1166) | ||
| 558834 | 2007-06-13 23:15:00 | don't forget a 10Mb network max's at 550kB/s, then take into account of overheads ie windows fileshareing etc and interference etc, its not uncomman to be slower. | tweak'e (69) | ||
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