If FileBrowser is repeately asking for your username and password please check your Windows account using the following steps.
To find your user name in Windows 10, use the following steps:
Press the Windows key and type 'Control" select the Control Panel App from the listing.
Click 'Change account type' under User Accounts.
* If your Control Panel looks different, change its 'View by:' in the top right corner to 'Category'
The user account you are currently logged in as is highlighted in blue.
Compare your user account to those below:
Option A - You have a Microsoft enabled account. The email address listed will be your Username in FileBrowser.
Option B / C - You have a local Windows account. The username in the large font at the top will be your Username in FileBrowser.
In FileBrowser perform the following steps:
From the home screen, find your Windows 10 connection and tap the 3 dots icon.
Then tap 'Edit...'
Enter your Username into FileBrowser's Username field - This is case sensitive
Enter your Password.
Option A - Your password will be your Microsoft account password.
Option B - Your password will be the password you use to login to Windows.
Option C - You have a local Windows account with no password.
FileBrowser will not be able to connect to an account with no password, see below for instructions on how to set a password.
PIN CODE: You cannot use your Windows 10 login pin code to connect filebrowser, a full password is required.
If the account you have chosen does not say 'Password protected' under it, then it has no password.
Having a password will mean that you will need to enter it each time you boot your Windows PC.
Follow the steps below to set a password:
Click the account you wish to set a password on.
Then click 'Create a password' in the left hand pane.
Type your password and retype it to confirm, then click 'Create Password'.
Then return to step 4.
At work, you will probably connect to a machine in a Windows Domain. You will need to prepend the user name with a domain name like this: domain\username.
Note that you need to use a single back-slash character between the domain and user names.
Windows 10 sometimes changes the local login password but not the network access password when a user modifies their password. The following Windows 10 steps should get you back in sync again:
Launch the Settings app and click on Accounts.
In the "Your Info" section click "Sign in with a local account instead" and create a new local account. This will log you out when complete.
Log back in using the new local account and repeat the steps but click "Sign in with a Microsoft account instead".
Use your Microsoft email address & password in FileBrowser to connect.