OneDrive Business Account can't connect (0x8004e4c3)

Question

Since yesterday, seemingly out of the blue, my OneDrive Business accounts stopped syncing on both my PC and my Laptop. After signing out I cannot sign back in and get the error code 0x8004e4c3, and the error no network connection [2603].

I'm using Windows 11 Build 22000.795 and the latest OneDrive version.

Same problem as here:

https://answers.microsoft.com/en-us/msoffice/forum/all/no-network-connection/0c20a333-434c-4115-bf5b-f5046086220d

Clearing the cache and reinstalling OneDrive didn't help. Neither did disabling the firewall or my windows defender. Again, I could connect to my personal account but not to the institutional account.

TLS 1.0, 1.1, 1.2, and 1.3 are enabled. Still doesn't work.

Any help would be much appreciated, my workflow is currently majorly impaired.

Answer 1

Hi

i'm geting the same error message, but i don't have an institution vpn to log in by.

are there any other suggestions, please

Answer 2

I had the same Issue - but none of the Replies was the right solution. The Issue was, that a Secure Mail App activated a System-Proxyserver. After deactivating the System-Proxyserver, I could log in without any issue.

Answer 3

Has this problem reappeared ? I have exactly the same configuration than you (azure and local AD, 2FA etc) and I just encountered the problem on 3 PCs in 2 weeks. For the moment, the only thing that works is to recreate profile users. Very painful and no idea where it came from

Answer 4

can you please explain what your steps were to diagnose this solution?

Answer 5

yes it does partly, but my data is missing. It'd like having a new onedrive