Public bug reported:
Attempts to transfer large files via wireless between two computers on a
local network consistently fail, while wired transfers do work.
Setup: a local network, all computers running ubuntu intrepid. One
desktop with wired connection has a large file (>500MB, random data),
the other is a netbook (Acer Aspire On A110L) connected either by wire
or wireless.
When the netbook is connected by wired ethernet, this command finishes
successfully :
~$ scp 10.0.0.32:/home/test500mb /dev/null
<...password request...>
test500mb 100% 512MB 10.9MB/s 00:47
but when on wireless, this results:
~$ scp 10.0.0.32:/home/test500mb /dev/null
<...password request...>
test500mb 0% 3712KB 1.5MB/s 05:48
ETADisconnecting: Corrupted MAC on input.
lost connection
The amount transferred ranges from a few bytes to a few MB, but I never
managed to transfer the whole file. Same result when using nautilus :
connection via ssh works, but transfer crashes after some time. Same
behaviour when other large files are tried. Small files may go through.
The wireless driver is ath5k_pci using WEP at the default 1Mb/s. I can
manually set the speed to 24Mb/s and it works reliably for e.g. surfing,
youtube, but file transfer reproducibly crashes as described at any
speed.
I attach lspci -nnvv from the netbook
** Affects: ubuntu
Importance: Undecided
Status: New
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[ubuntu intrepid] File transfer through wireless in local network consistently
fails
https://bugs.launchpad.net/bugs/303723
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