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I have discovered a very specific problem with my Ubuntu (12.10) PC. Whilst using ethernet, when I connect to a SMB share I can copy files to the share, but when copying from the share the copy process stops at random times (sometimes straight away - sometimes after a few seconds).

I have systematically tried to remove and change different parts of the network to fix this:
1. tried copying from a Windows PC instead - works OK
2. tried copying from my Ubuntu PC over wireless - works OK
3. replaced the switch between Ubuntu PC and SMB share - still fails to copy over ethernet
4. replaced ethernet lead - still fails to copy over ethernet
5. Run a windows Virtual machine on Ubuntu PC - copy from SMB to VM works OK.
6. Run a Linux (Mint) Virtual machine on Ubuntu PC - fails to copy over ethernet

My only conclusion from the above is that the configuration on the network card is screwed up somehow. I have tried taking the network card down and up (ifdown & ifup) but this makes no difference.

So my next plan is to deinstall the network adapter from my PC and reinstall it. This is an easy process in Windows (device manager/delete the network adapter and driver / rescan and install the adapter and driver again). But I have absolutely no idea how to do this in Linux.

So can anyone provide the necessary commands to let me do this? I really don't want to have to totally rebuild my PC (last resort) as I have it just the way I want, with all the applications I want.
So any assistance would be appreciated.

Thanks in advance
03-18-2013, 09:25 AM
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