Cryptomator fails to write larger files to vault


Hi all,
I have just started with Oryptomator and I’m not able to upload larger files to a cloud storage. The threshold, where it does not work anymore seems to be system dependant so I assume some sort of timing problem with Webdav.

My configuration:
2 different Windows 7,SP1 systems
Webdav connecton to Strato HighDrive or Magenta cloud (German Telekom)
1st System with 1MBit/s Uplink Speed (ADSL)
2nd System with up to 10MBit/s Uplink Speed (DSL /LTE Hybrid).

In System 1 I can copy files up to a size of 5 MByte and in System 2 around 12MByte.

I’ve played around with Webdav registry settings and the maximum file sizes are set to 4 GB. Then I tried out some timing values but there was no improvement.

When I’m uploading without Cryptomator the problem remains but the possible maximum file size is around 50MByte. So I really assume a Webdav configuration problem, but I do not have any clue, which parameters are responsible.

Any ideas? Or should I try a third storage, since Telekom and Strato use the same cloud implementation (as far as I know)

Best Regards,


Yes, there actually is a WebDAV registry key that you can configure. If the upload takes longer than 60 seconds, you’ll get the error “Could not find this item” at some point.

If that’s the case, you can increase the value of the following registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WebClient\Parameters\SendReceiveTimeoutInSec

After that, make sure to restart the WebClient service (e.g., via Services.msc or CMD).


Hi all,
I have changed the registry according your proposal, but I do not encounter any difference.
After trying that I increased all timeout values in
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WebClient\Parameters and
to a multiple of the default values, but again there is no difference. Since I didn’t trust the restart of the Webnet-Client via services.msc I restarted the computer but it didn’t help:

I always get the same picture:

Regards, Dirk


Same Problem here with Hidrive, webdav and Windows 10. Did you solve it?