2 Wireless PCI cards. Slow speed between them. Why?

[Dimedrol]

Hello All!
I've got 2 computers in two rooms of my house.
One of them is working via the Wireless PCI card through the router, the other PC was working through the router, being directly connected to the router with ethernet cable.

Router - is a cheap home Edimax, - is located in the same room where the 2nd PC with ethrnet cable.

The first PC is located behind two brick walls from router and, it works pretty good trhough these walls.

Earlier, when I copy file from 1st PC to 2nd, the speed was pretty good - up to 2 megaBytes per sec.
OK.

But 1 week ago, I need to move 2nd ("cabled") PC to the far corner of the room, and I've decided to buy the second wireless card.

OK. Bought. Installed.
Seems like working.
BUT!

Between these 2 PCs - the speed falls down to the very poor limit.
In the peaks - up to 400kb, but usually - not faster than 100-200 Kb\sec.

What's wrong???

Btw, the 2nd PC, which was just installed a Wireless card in, is still situated in the same room as out Wireless router - in "direct sight" without any walls e c.t.
And it seems to me the Internet speed is quite OK...
I'm not sure, but the speed is definetly faster than 100 Kb\sec.

So... help please, what I have done wrong?

[Ghost_Hacker]

Nothing.

File transferring between 2 wireless computers can be slow by the very nature of the protocols used.

Distance, type of cards used, size/number of files, security settings and wireless protocol type all effect file transfer rates between 2 wireless computers.

Others may have some tips for speeding things up.

Good luck :)

[bassman]

What is the type of each device (802.11 b, g, n)? Firewalls on each device? Any other wireless devices in the room with router (phone, intercom, cameras)?