strange problem with network between 2 pc

[kenny]

this is a 2 computer network (the computers are in separate rooms) in with a
crossover cable. Both computers have xpsp2 and 100Mb nic cards..

However when I have the speeds of the cards (settings) at automatic
they are connected at 100M but speedy transfer happens only on one
direction,
from PcA to PcB. If I try to transfer a file from PcB to PcA, its incredibly
slow..
for example a 10 mb file may take 5 mins.

I tried changing the settings of the cards, and the best thing I could do
was
to set both cards at 10Mbps, and they work well, but of course only at
10Mbps.
But I need it to be faster because I transfer big files all the time.

What could this be?

Could it be the cable? I made the cable myself....

any ideas?

 

[Joe Crown]

Anti-virus software is known to slow down network transfers as it scans
the file as it is coming in. Also sine you didn't name what network
cards you are using it could be an issue with speed negotiation as some
brands are known to have problems with other brands/models.

this is a 2 computer network (the computers are in separate rooms) in with a
crossover cable. Both computers have xpsp2 and 100Mb nic cards..

However when I have the speeds of the cards (settings) at automatic
they are connected at 100M but speedy transfer happens only on one
direction,
from PcA to PcB. If I try to transfer a file from PcB to PcA, its incredibly
slow..
for example a 10 mb file may take 5 mins.

I tried changing the settings of the cards, and the best thing I could do
was
to set both cards at 10Mbps, and they work well, but of course only at
10Mbps.
But I need it to be faster because I transfer big files all the time.

What could this be?

Could it be the cable? I made the cable myself....

any ideas?

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[Guest]

It could well be the cable if you didn't get the cores in the right order.
The cores are wired as pairs, and sending a signal across two non-paired
conductors will give very poor results.

http://yoda.uvi.edu/InfoTech/RJ45.gif

Might also ba an IRQ or driver problem with the cards.