Error 0x8007003B

[Madspec]

Hi !

I am having problems with file transfers from my PC to my NAS. I do not have this problem transferring files from a drive on my pc to another drive on my pc, only to the NAS. I am getting some serious lag with small files and error's with big files.

If I try to transfer a small file, the transfer window appears but it takes a couple of seconds to start (maybe 10 seconds or so).

If I try to transfer a large file (a couple of Gb's), the transfer window appears but I get an error (0x8007003B) and the transfer fails.



Now, this is what I tried to fix the problem ;

- Disabled Fire wall
- Disabled Anti Virus
- Uninstalled Anti Virus
- Reverted to an older Firmware on my router
- Reverted to an older firmware on my NAS (QNAP 469 Pro)
- Disabled the Teredo adapter (netsh interface teredo set state disabled)

I am all out of ideas.... This problem just came out of no where, not firmware update was done on the router or the NAS when the problem appeared.


Any help would be appreciated

Thanks

Windows 10 pro

[zMeul]

have you considered in the slightest that the NAS might be borked?

take the NAS to a PC and directly connect it to it, do a test transfer

[Madspec]

The NAS is directly connected to my PC.

[zMeul]

1 minute ago, Madspec said:

The NAS is directly connected to my PC.

then why have you added the router in all of this?!

[Madspec]

It was connected to the router at first, so i connected it directly to the PC for testing.

[zMeul]

Just now, Madspec said:

It was connected to the router at first, so i connected it directly to the PC for testing.

do you have any other PC in the house? laptop? can you test the NAS anywhere else?

 

ps: quote me if you want me to see your rely in the case I close this browser tab

[Madspec]

1 minute ago, zMeul said:

do you have any other PC in the house? laptop? can you test the NAS anywhere else?

 

ps: quote me if you want me to see your rely in the case I close this browser tab

Yes, I have a laptop I could test it with, I'll do that.

[zMeul]

Just now, Madspec said:

Yes, I have a laptop I could test it with, I'll do that.

yes, do that and report back

[Madspec]

Managed to find the problem. It's a bug in the latest QNAP firmware...

 

If anyone has a QNAP NAS and are having the same problem, here is the link to a fix.

 

Fix for large file transfers via QNAP