Large wireless file transfer reboots router?

[DoesItMatter]

OK...

I was doing some throughput testing via wireless for my Fon 2201+

It's running 1.0.3 right now, but if more AP+Client testing versions
show up, I'll be flashing those on it.

I wanted to do a crazy test and did a 2GB file test.
This was via Wireless-G 128bit WEP encryption.
Vista PC -> Vista PC and both have NTFS drives.

First transfer sort of flaked out, so tried a 2nd large file
and all of a sudden, I lose connection, and I look and I see that
my Fon 2201+ has crashed and is in the process of rebooting.

I don't usually do this type of transfer, but wanted to test it.

Anyone else experience an issue with the router crashing?
I have to suspect it runs out of memory and crashes, but
am not 100% sure on that.

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Edited this to clarify - this was wireless transfer testing.
Downloading huge 4.5GB linux distros doesn't affect the router.