brother printer/scanner cannot upload scanned document

Brother support recommends to deinstall the Dropbox account and shortcut on the printer, then reregistering it. Haven't tried yet, will send an update later...

Has anyone tried the suggestion by Brother, that hemzet mentioned, to see if that helps?

Hi!

I attempted Brother's suggestion now and removed everything Dropbox from my DCP-9020CDW, and set up the account again (also restarted the printer inbetween). Same result. I've also made sure that I had the latest printer firmware installed before trying this. There are no automatic updates performed on my printer.

I would also guess something server related as mentioned above (I have no facts to back it up with though, basing it on the similar issue when the printer's Scan-to-email stopped working since Office365 stopped supporting TLS 1.0 in favour of TLS 1.2 ^^;  )

Tried setting up the printer to scan to my OneDrive account, and that seems to be working.

Hello matkun,

Sadly I have the same experience - deinstalled everything related to Dropbox, upgraded firmware (latest from fall of 2019), rebooted printer. Disappointingly with same error. 

Have checked OneDrive, which works fine.

Any help still appreciated! 

Brother support isn't helpful with this, which is very unfortunate.
[..]
VAL B (02/05/2022, 2:53:19 pm): What error are you getting please?
VAL B (02/05/2022, 2:54:05 pm): We tested one one of our machine and we can upload to drobox. Works on our side
VAL B (02/05/2022, 2:54:48 pm): The link you provided from Dropbox is 1 year old
null (02/05/2022, 2:55:13 pm): connection error 03
VAL B (02/05/2022, 2:55:17 pm): Sorry, are you still there with us?
null (02/05/2022, 2:55:33 pm): IF you read through to page 2 of the forum you see it's current
VAL B (02/05/2022, 2:56:05 pm): The scan goes through the brother server. It worked for us
VAL B (02/05/2022, 2:56:46 pm): You might need to change if your account had password changed or anything
null (02/05/2022, 2:57:16 pm): great it's working for you. it isn't for me. as suggested by your colleague before, I reregistered th account. no change.
VAL B (02/05/2022, 2:57:55 pm): You could try deleting it from the printer side and re register
null (02/05/2022, 2:58:12 pm): isn't this what I started the chat with!?
VAL B (02/05/2022, 2:58:52 pm): Did you delete the account on the printer?
null (02/05/2022, 2:58:56 pm): YES
null (02/05/2022, 2:59:56 pm): "I removed everything Dropbox from my printer, and set up the account again (also restarted the printer inbetween). Same result. "
null (02/05/2022, 3:00:02 pm): I wrote
VAL B (02/05/2022, 3:00:29 pm): We will try to test it on the same series machine that you are using and will get back to you.
So that we can confirm whether its machine specific or an environment issue
null (02/05/2022, 3:01:09 pm): happens on a MFC9330, MFC9342 and an L3770 for us
null (02/05/2022, 3:01:18 pm): doesn't seem printer specific
VAL B (02/05/2022, 3:01:21 pm): Thanks
VAL B (02/05/2022, 3:01:33 pm): We will check on same models and get to you
VAL B (02/05/2022, 3:01:49 pm): Bye for now
[..]

Hi all, I hope you're having a smooth Wednesday so far! 

It seems that what you're experiencing might be related to these updates that took place lately. 

These changes would affect the compatibility, and hence possibly cause these issues. 

I hope that shines some light. 

Thanks Megan,

After many contacts with Brother support and hearing "it works for us" all the time, I finally received a message from Brother support that the issue could be reproduced and now is under investigation... Nothing we can do so far.

"We have tested the scan to Dropbox on a few different models. We can confirm there is currently an issue with the MFC-9330CDW and MFC-9340CDW, which our head office engineers will investigate."

Thank you for the update, hemzet! 

Provided you hear anything back from them, let me know in this thread too, so we can stay up to date on this.

If you have any news, or questions I am always one post away.

Hi guys, I have DCP 9020CDW model and I have exact the same issue with Error 3. I tried everything:

- Disabling firewall on my computer and router.

- Completely resetting the printer settings.

- Turning off and on the router and the printer

- Reinstalling the dropbox account

Nothing helps. Hope they solve the issue.

Update from Brother support...

[..]Our engineers have advised that our server will be updated to resolve this issue, and currently it is estimated that it will be resolved next week. In the meantime, if you select Searchable PDF or Word as the file type, you may be able to scan now.[..]

Megan

I can confirm, changing setting to "Searchable PDF" works on an MFC-9330. Default PDF documents still cannot be uploaded which implies Brother is still working on this.
Out of curiosity, Dude5050, did you try to switch to the alternative PDF setting on the DSC type?

Many thanks for the tip! Scanning "Searchable pdf" to Dropbox works fine also on my DCP-9020CDW.

Great job on the update and tips you're sharing hemzet! 

Thank you so much! 😊

I just received an email from Brother support that the issue with Dropbox uploads of scanned documents should be fixed. I verified the fix on my HL-3180CDW by successfully uploading a JPEG-format scan.