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Thread ID: 75677 2007-01-07 04:11:00 Reliability of Wif transferring files. Nomad (952) Press F1
Post ID Timestamp Content User
513444 2007-01-08 02:09:00 Ok. The PCI card also has no firmware available.
Copying from the router hardwired is v slow.

When I copy the file, accessing from the computer with the wifi card its v quick. This was using the Linksys software.

Any ideas?
Nomad (952)
513445 2007-01-08 02:42:00 Not sure if this makes a difference, the computer with router (slow approach) has static IP.

The one with wireless card (faster approach if you access from that), has auto IP.

When I copy all I do is just browse Network Neighbourhood and copy and paste.
Nomad (952)
513446 2007-01-08 12:27:00 Have you tried slowing the connection speed yet? Limiting it to say, 11mpbs? Chilling_Silence (9)
513447 2007-01-08 23:45:00 Have you tried slowing the connection speed yet? Limiting it to say, 11mpbs?

No I have not .


I have tried to pop them closer to each other .
Well actually . . . . .

I got frustrated so tried to do a crossover cable connection with laptop and PC and then the stupid MS error came up, limited connectivity . I never had this issue with WinXP (with no SPs) but have it with SP2 . I have never tried with SP1 . Then I grabbed my ADSL router with 4 network hub and it magically worked with no rebooting :confused: . In the past I have gone via every MS KB to no avail . . incl editing registries and network properties and changing the cables and slowing the speeds down .

Anyhow, on a 100Mbps network card 1GB took 4-5mins .
I tried wireless (accessing from PC with WinXP w/ wireless card) - 15mins .
Accessing from win2k laptop with no wireless card (hardwired to router) - 20mins .

Each time I disabled the wireless device to use the wired network card . And I disabled the network card and used the wireless device . I wonder if both are active which device does window choose to use?

The above the ADSL router for wired or wireless, the router was placed 0 . 5m away from the PC on ground zero so they were practically next to each other with no obstructions .


Before I did it, I had a good look with the WinXP PC with the wireless card and kept an eye on its wireless indicator, it seemed to fluctuate between 54Mbps and 3 . 5Mbps, I presume it got too low, windows gave up . The 1GB file was files zipped up to (1) file . The win2k laptop had the same issues but a bit more touchy, I guess this is just down to the different windows O . S flavour .

I think if one computer is downstairs and the other upstairs directly . One is next to window (laptop) - the router . The PC case is on the floor, its wireless antenna is not facing the window . I expected the speeds not great, but I didn't expect a drop out . Might not be a bad idea grabbing a 5m network cable and pass it via the two windows . Bit of a waste getting a wireless router and the (1) wireless card now . . :badpc:
Nomad (952)
513448 2007-01-09 01:37:00 Did you look at the DrTCP program I mentioned? it will help with the slow transfers with 2K<>XP even if you do decide to drop the wireless.

Also be aware that PCI cards can be problematic with internal bus noise and other factors so sometimes a USB adapter is a better choice as you can get it away from all the interference.
ughnz (8297)
513449 2007-01-09 01:53:00 well for me wifi has been fine, but i have used cable where possible purely due to speed and range. wifi was fine for files 3.5GB in size, i don't have any file larger to test

if the pci device is vertically above the router, the signal isn't going to go out the window and back in downstairs. wifi uses electromagnetic waves, not gas. the signal comes out from the antennae in a donut shape, so if the devices are on the same level, all antennae should be orientated to point upwards or downwards. if the devices are above each other try pointing them horizontally.

in short all antennae must be parallel to each other, on the same plane:thumbs:

oh, and remember that metals make effective shields against EM radiation (or wifi signal), so your pc case could be a problem (and often is)



and when you tried crossoveer cables, did you manually set the ip adresses of both machines to 192.168.0.1 and 192.168.0.2? automatically detecting the ip will not work and would give the error you described
motorbyclist (188)
513450 2007-01-09 02:30:00 If you are having problems with keeping a constant connection then try letting windows XP manage the PCI card . The supplied linksys software is normally for win98/me/win2k .

If you are having problems with the transfer rate then you may need to 'tweak' windows . Google for DrTCP and don't forget to 'tweak' all PCs on the network .

Also do not forget that WiFi tends to be very 'burst' orientated and very rarely does it maintain a constant transfer rate and this will cause progress indicators to 'bounce' around a bit .

Also factors such as your fragmentation & RTS threshold and mixed vs single mode will effect things .

Thanks, its now working great with that little utility . I Shoved in a setting of 17250 and the MTU for the wireless card of 1500 . I copied the same file from the laptop took me 15-16 minutes . When they were next to each other it took 20mins (without this proggie) . The time left on display seemed to be v consistent . It was not fluctuating . :thumbs:

I may bring it down there and see if there is any improvement side/side with the proggie .
Nomad (952)
513451 2007-01-09 02:34:00 and when you tried crossoveer cables, did you manually set the ip adresses of both machines to 192.168.0.1 and 192.168.0.2? automatically detecting the ip will not work and would give the error you described

Last time yeah .. both were on static IP addresses. I could see each other but I had problems when I tried to get into one of the folders ... its chewed for a few minutes and then gave up saying "limited connectivitiy".

Anyhow, auto IP with crossover worked fine when WinXP didn't have any SPs on it ......
Nomad (952)
513452 2007-01-09 02:38:00 if the pci device is vertically above the router, the signal isn't going to go out the window and back in downstairs. wifi uses electromagnetic waves, not gas. the signal comes out from the antennae in a donut shape, so if the devices are on the same level, all antennae should be orientated to point upwards or downwards. if the devices are above each other try pointing them horizontally.

The router is upstairs next to window on table.
The PCI card is downstairs, tower computer cases on the floor, not exactly facing the window, facing the wall more like it, the antenna has been pointed towards the window. Up diagonal. Its a all in one motherboard, one PCI dialup modem, one PCI Wifi card, no other cards, one floppy, one HDD, one DVDRW.
Nomad (952)
513453 2007-01-09 06:03:00 Anyhow, auto IP with crossover worked fine when WinXP didn't have any SPs on it ......

lol good 'ol microsoft software "upgrades" eh?
motorbyclist (188)
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