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ATI 2020 fails part way through back up

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Recently upgraded to 2020 from 2017. 2017 worked great. I also upgraded Windows 7 to 10 (build 10.0.18362). After upgrading to Windows 10 and upgrading to ATI 2020; a few back ups worked, then every one fails about 35 minutes in. ATI says destination unavailable.... after 35 minutes. Please see log file.

Here is what I've done so far:
Reformatted the 1TB USB external back up drive
Uninstalled all Acronis software
Analysed and Optimized the C: drive after uninstalling ATI software
Shut down and restarted PC and ensured Event Viewer was posting no errors
Reinstalled ATI 2020 and reactivated
Double Checked that I could put a note pad file on the USB disk
Set up a basic back up to the empty USB HDD
after 35 minutes or so... same failure as before

Any help would be greatly appreciated. Thanks

Attachment Size
Acronis True Image Failure Log.pdf 119.17 KB
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Your log file shows:

error 0x40015: Network disconnected

error 0x29b1399: Network operation failed

| function: archive_stream_write_shbuf

| path: \\?\D:\/SCOT-HP.tibx

The path \\?\D:\/SCOT-HP,tibx looks to be a mapped network drive.  The errors above that show the network disconnect.  I would say that your losing your network connection for some reason thus the failure.

Thanks for responding. The external drive is a simple USB external drive plugged directly into my PC. 

I would suggest you recreate the task from scratch and try to backup again. If you get the same errors then contact support.

Any possibility the device is going into a low power "sleep" mode after the 35 minutes?  It shouldn't if it's being written to, but that might explain a loss of connection.

BTW, I see is a doc on Windows path names the statement

The DOS device path consists of the following components:

  • The device path specifier (\\.\ or \\?\), which identifies the path as a DOS device path.

so I think "path: \\?\D:\/SCOT-HP.tibx" is just the DOS-format path to D:\/SCOT-HP.tibx.  Is that the file you were writing?  (If not, this is really confusing.)