Monday, March 20, 2017

networking - Solution for noisy network that corrupts downloaded files

The network on the company where my wife works has issues. Almost every single file bigger then a few hundred kB is corrupted during download and even web pages are sometimes garbled. We checked all we could possibly check and it really isn't a problem on her computer (specially cause every other computer terminal in the building have the same problem).


All files are corrupted, including documents, photos, web pages... this happens for files downloaded through any means (various browsers, wget, download-managers, ...) except Dropbox. but the worst problem is that she can't install anything in her Ubuntu machine because the packages are corrupted at download and there's a checksum mismatch every time she tries to use apt-get or even run a downloaded script.


The network admin doesn't seem to be interested in correcting this and he doesn't even seem to understand what the problem is and what can be causing the problem (he insists that this is caused by heavy traffic in the network).


What is strange is that the files downloaded by dropbox are not corrupted. I think maybe it uses a checksum test and tries to download again in case it fails.


So, we thought that maybe there's some program that makes some kind of check during the download and download again the corrupted bits? Is there any way we can use this noisy network?


There's really no other option, it's the only fast network she has access to... :(


EDIT: I'm even losing ssh connections over this network. Can't manage to stay connected via ssh for more than 30 seconds... :( I get a:


Corrupted MAC on input.
Disconnecting: Packet corrupt

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