I'm trying to create a custom master page template in a SharePoint Online environment. I'm using the Design manager to upload the design files. I've mapped the network drive like the page described and can open and view the files, but I cannot upload files to the location. Every time I try I get the following error:
Error 0x800700E0: Access Denied. Before opening files in this location, you must first add the website to your trusted sites list, browse to the website, and select the option to login automatically.
I've added the site to the trusted sites list, as well as selected the option to login automatically. The WebClient service is also running.
How can I upload files to this location?
The only explanation I can think of is that I am logged into windows on a Microsoft account, and I use a different Microsoft account for SharePoint. I can map the network drive fine, but when I try and map it with the option "Connect using different credentials", and I use my SharePoint Online account, I get the same access denied error.
Thanks