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Old 17.02.2018, 01:28
NeDark NeDark is offline
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Default MEGA corrupted rar files

Hello. In my computer A with Windows 10, when I download big sized rar from MEGA many of them get corrupted. It fails when jdownloader tries to extract it. Manually extracting using winrar fails with error:
Checksum error in (...). The file is corrupt

I downloaded the same file multiple times, I checked the MD5 sum of downloaded file and it was different each time. I tried downloading big sized ISO but there was no problem. Computer A has a HDD and a SSD, same result with any of them.

However in computer B with Windows 7 and computer C with MacOS I can download the same file using jDownloader with no issues.

I tried downloading in computer A through browser and through MEGASync client and it downloaded correctly.

I tried uninstalling jDownloader from computer A and using standalone version (JDownloader.jar file), no changes.

Computer C:
$ md5 BCES00791-Team-GamerBross.part01.rar.encrypted
MD5 (BCES00791-Team-GamerBross.part01.rar.encrypted) = 3ce5bc6e029e758f27e5d764bf3b83d3
$ md5 BCES00791-Team-GamerBross.part01.rar
MD5 (BCES00791-Team-GamerBross.part01.rar) = 37424e61a8543e84b836da44e9ba8d07 -> Correct MD5, same MD5 in computer B/C and when downloading through browser or MEGASync client

Computer A:
$ md5sum.exe BCES00791-Team-GamerBross.part01_2.rar.encrypted
f71bf8eabed2297fb00a2f4bdd35fbaf *BCES00791-Team-GamerBross.part01_2.rar.encrypted
$ md5sum.exe BCES00791-Team-GamerBross.part01_2.rar
6c2ca94663d7eb220f88a96253967a5a *BCES00791-Team-GamerBross.part01_2.rar -> BAD MD5, each time I download it changes

Any clues?

Regards.

Last edited by NeDark; 17.02.2018 at 01:47.
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  #2  
Old 19.02.2018, 13:01
NeDark NeDark is offline
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I found a article about causes of corrupted downloads in another download manager:
**External links are only visible to Supporters****External links are only visible to Supporters**

I unchecked ESET Personal firewall from adapter properties and I haven't had more corrupted downloads:


Regards
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Old 19.02.2018, 13:23
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Jiaz Jiaz is offline
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Check your memory with memtest86.
Checksum error + *it was different each time* is a sign for hardware issues. I think bad memory so please test with memtest86 and NOT with windows memory test tool.
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Old 19.02.2018, 13:24
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Jiaz Jiaz is offline
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Thanks for your feedback. It can be caused by firewall/av but you should check memory nevertheless
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Old 16.05.2018, 19:55
RoflTom RoflTom is offline
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Yay i sit here with the same Problem.
Every time i download some GB-sized Stuff random Parts are corrupt aka Hash-Mismatch in WinRawr.
Replaced JDownloader still same problem
9H Memtest - No Errors
HDDs - No Damaged Sectors/NTFS-Clusters
Drivers - Up2Date (reinstalled all)
I tested it with all Firewalls off (including Router)

No idea wtf is wrong here. Any Ideas?
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Old 17.05.2018, 10:38
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Jiaz Jiaz is offline
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Could also be driver issues. Or lan vs wifi?
You could try a linux live distribution from cd/usb stick (eg ubuntu) and check the download in there.
In case firewall is installed on computer, then a real test would be to uninstall it and reboot computer. I don't know any firewall that you can really *turn off*
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