blank login screen with new installed dropbox on new installed macOS high sierra

[nicknick]

Hi all,

Join here today and my first question, since this is my first encountered problem after using dropbox so many years.

I fresh install macOS Sierra from recovery mode, new formated ssd, to my MacBook Air (mid 2011), and then upgrade to macOS high Sierra (10.13) immediately.

Then I download dropbox desktop app from dropbox.com and successfully installed, while the first running of the application, it pop up a blank "Set Up Dropbox" window, I cannot type anything to login as usual. So I cannot login my dropbox account nor sync file.

Captured screen below:

I've try restart, re-install dropbox app, and restart my mac, nothing change.

Any idea how to solve this problem?

[Jane]

Hey 

nicknick, let's have a look at the possible causes, welcome to the Community! 

As a first step, I’d recommend checking whether an antivirus, firewall, security program, proxy or VPN is blocking the installation. Can you make sure that these steps are followed for the configuration of your firewall if you’re on a working environment and that the domains listed here are allowed or whitelisted?

Should the above steps fail, then please try installing the full offline installer here: 

https://www.dropbox.com/downloading?plat=mac&type=full (Mac)

& force quit all other applications while running the .dmg file. 

Please keep me updated on the outcome in your reply & we'll take it from there! 

[nicknick · Accepted solution]

Hi Jane and all,

I can now connect and sync with Dropbox, the workaround in simple: use shared non protection wifi to login Dropbox to finish the setup, then it can use back the network connection in my working enviornment with firewall protection.

Share with you what I've try and the findings, hope this info may help others:

1. Full offline installer not the cure, same result.

2.  I've no antivirus installed on my Mac yet.

3. I'm in my working environment, they use an enterprise grade firewall which I cannot change the setup, but as I know they don't block Dropbox but they have a SSL scan engine to protect network attack via SSL tunnel. Since my Mac can install and sync with Dropbox pervious, I just re-format the SSD and fresh install macOS High Sierra, my intention is to test the compatibility of High Sierra and my daily use software. So I firstly not question our firewall setting.

4. Nevertheless, I try to share my cellular phone data via wifi to my Mac, and then it can shown the login page! After successfully login, I disconnect my cellular phone data and use back my office network. Dropbox still keep syncing well. I guess the issue only affect the init login setup but not the normal function of Dropbox. Most possible suspicion is the Login setup page (I think it like a web page rather than a local precedure call window) somehow use SSL port to connect Dropbox server and it trigger our firewall's SSL protection. Just my wild guess and I cannot test deeply on this part.

Since Dropbox can securely sync and function well within my working enviornment, hope Dropbox developer may adjust the initial login setup process to reduce the possibe blocking?

[Jane]

Hey nicknick, thanks for the swift & detailed reply. Please accept my apologies for getting back to you in delay.

Glad to hear that the issue was resolved by connecting to a different network. You could report your findings to your IT department, just so as to check this particular case, though you may keep in mind that all relevant settings that refer to the Firewall configuration with Dropbox can be found here, so the culprit is probably located there. 

I hope that the tip helps you reach a more permanent solution & keep me updated here in case you have further queries, I’ll do my best to follow-up. 

Hope you have a great rest of the day ahead! 

[This thread is now closed. If you have a similar or new question, you can ask here: https://www.dropboxforum.com/t5/forums/postpage/category-id/101001000]