CloudDAVMod v1.1 for WD My Cloud firmware V4

CloudDAVMod v1.1

For those who’s following WD My Cloud‘s post, a new APP has been added to the installer, a newer improved CloudDAVMod v1.1 for firmware V4. This is my original release (-:

Remote Drive Mapping

On top of re-enabling the remote drive mapping which WD has unexpectedly removed from MyCloud, this mod provides a basic WebDAV webGUI based file manager that integrates seamlessly beneath the existing WD MyCloud Dashboard.

Advanced Features

Advanced Features

No additional backend daemons. Fast, secure, light-weight yet powerful and easy to use (-:


  • Completely bypass account login. It’s directly between you and your MyCloud NAS. With a personal DDNS 3rd party service, CloudDAVMod should work well even behind strict corporate firewalls or computers that blocks cloud services.
  • Unlimited filesize transfers where the usual mapped drives has a platform specific WebDAV filesize limit.
  • Common file/folder functions such as copy/paste/move/delete/rename/mkdir and advanced search/properties/export with keyboard shortcuts to these functions.
  • Multiple uploads via single mass selection OR Drag&Drop files from the desktop directly into a supported HTML5 browser.
  • HTML5 image previewer with navigation/zoom/pan/rotate support, HTML5 audio streamer with matching filename M3U playlist track order and track title support and HTML5 video streamer with matching filename SRT subtitles support.
  • System panel for MyCloud Dashboard admins; CPU/RAM/Disk/Network/Process usage, S.M.A.R.T. temperature, run simple WWW-SSH commands with simple color support, remote reboot/shutdown and download system logs.
  • MyCloud file/folder auto expiring URL links sharing with captcha and password protected zip. Safely share your selected files and/or folders with anyone!


This version of CloudDAVMod is only compatible with WD MyCloud firmware version 4 as listed at the end of this post here. You will not be able to install otherwise. An updated CloudDAVMod version will be released soon upon newer firmware updates.

Disclaimer: As I’m frequently updating the original guides and installers here on, I will not be responsible for any brick issues if you were to follow my obsolete guides copied elsewhere. Thus subscribe to this post to get latest updates. Modifying any part of a device may void its warranty.

This will install new and modify existing MyCloud core files, hence may void its warranty. After installing, open your browser and point to the local URL stated in the installer.

Note that you’ll see HTTPS security error prompt, just proceed, on some browsers, you’ll need to click on ‘advanced’ prior.

Chrome Cert Error

Chrome Cert Error
IE Cert Error

IE Cert Error

Login using any of your existing WD MyCloud Dashboard accounts then click on the ‘?’ help icon for usage details. Extremely slow browsing after initial installation? Or what is the remote URL to access externally? Please carefully read and understand the notes section from the ‘?’ help window as they covers most of these questions.

Why is browsing slow on both WebGUI and network drive?

You need to build the WebDAV cache for the first time. Details found on the WebGUI itself in the “?” help notes section.

How to remotely access CloudDAVMod or map MyCloud to a network drive?

First of all, CloudDAVMod will NOT work if your MyCloud is in “relay mode”, check the WD MyCloud Dashboard network settings. This is usually the case if you’re in multi-NAT environment. If so, you’ll then need to manually forward the relevant ports from your router. Refer to the ‘?’ help notes section for the port details.

The remote URL to access CloudDAVMod externally or to map a network drive remotely is clearly stated in the ‘?’ help notes section mentioned above, so again please read them carefully. It’s something like:


  • Take note of the required ‘HTTPS‘.
  • The ‘:PORT‘ is optionally omitted if it’s port 443.
  • And ‘HOSTNAME‘ is case-sensitive.

To access from the browsers i.e. Chrome, Firefox, IE, Edge, Opera, Safari or mobile browsers, just go to the specified URL stated in the help section. Best to bookmark them for easy access. To map onto a network drive, use the simple similar methods on different OSes described below providing the same URL. Note that the default port is ‘443’ if requested unless stated otherwise.

  • Windows (Explorer): From menu, click Computer, Map network drive (or right-click on ‘This PC’ icon).
  • Mac (Finder): From menu, click Go, Connect to Server (or Command-K).
  • Linux (Nautilus): From menu, click File, Connect to Server.

If this the first time you’ve heard about WebDAV network drive mapping, please do some research about it. Example there’s a known 4GB file size limit for mapped network drive. A work around is to use the CloudDAVMod WebGUI instead. The network drive is best used for smaller files like editing documents, pictures and music files. If you’re dealing with larger files i.e. few hundreds megabytes to gigabytes in size, certain OS like Windows may stall for a while e.g. trying to right-click on a 1GB video file. So best is to stick with the more responsive CloudDAVMod WebGUI.

As promised, my donors will get the priority to install my newer builds. I will post a new comment when it’s released to the public to be used with the anonymous credentials. Donors with donation credentials, please use this installer code on your WDMyCloud:

For the older firmware, refer to the previous CloudDAVMod v1.0. If you’re upgrading, remember to clear your browser’s cache i.e. CTRL+SHIFT+F5.

For firmware 04.05.00-353:

Updates: Planned to release a final version after WD support for this model ends after April 15, 2022. The final version should include updates to the HTTPS certificate in order to continue using the MyCloud online such as remote drive mapping. Testing is in progress but eventually it depends if there’s a final version released by WD.

For firmware 04.05.00-342:

For firmware 04.05.00-334:

Fixed: Fullscreen toggle, ‘about:blank’ and ‘ResizeObserver loop limit exceeded’ errors.

For firmware 04.05.00-327:

Updated: JQuery v3.3.1.

Fixed: Possible scheduler issue causing drive not going to sleep.

For firmware 04.05.00-320:

Fixed: Issue starting server due to paths with spaces. Settings changed scheduler not triggered due to wrong permissions.

For firmware 04.05.00-315:

Updated: JQuery v3.2.1. Folders are now grouped top of the list for all manual sorting and search functions which should be the normal behavior.

Fixed: Error on browsers with plugins that modifies or broke user agent strings. Issues with parts display global array not reinitialized in new search results. Search list not displaying the first result. Cleanup ANSI color/style character leftovers from WWW-SSH Panel. Media streamer status still fading away even there’s mouse movements.

For firmware 04.04.05-101:

New: System panel for MyCloud Dashboard admin. MyCloud file/folder auto expiring links sharing with captcha and password protected zip. Search recursively by any type/size/modified deep into paths via Unix find . Detailed properties and folder usage via Unix stat / du  in Context-Menu. Image previewer with navigation/zoom/pan/rotate support. M3U playlist track order and track title support. Used and total share sizes in stats panel. Root shares sizes on home page size column. Range selections to expand or reverse with [SHIFT] or Context-Menu. Export selections to CSV formatted file.

Updated: JQuery v3.1.0. Improved help sections, subtitle error detection and page loadings. Changed to client side column sortings to adapt the new search and range select functions, hence toggling selections are now affected only on visible parts/filtered items and all selections will now reset during filtering. Allow browser’s autocomplete in inputs. Allow text selections in help dialog. Visual alerts when certain functions are restricted. Filesize in media streamer status. To allow play next events, clicking on any stream media during a non-stop loop play mode will now continue the playback from there instead of previously ending the loop mode. Tooltips will many infos will now stay visible unless page scrolled or cursor moved. List tooltips will now show root share sizes in home page or show track order and track title when the new available M3U playlist support loads. Retain copied item selections when navigating back to its originating path. The top selected/copied cursor hovered list indicator will now reveal which are the copied items among selected ones. Folder size column are now displayed as 4K block size unless populated from shares in the home page. WebDAV caches are now automatically updated if required by just opening the help section.

Fixed: Minor installer bug, codes cleanup and UI performance. Parts display exceeding item list. Keyboard sort tooltips typo. Tooltips appearing fixed top-left on certain mobile browsers. Stats size not including less than 1Kbytes items. [CTRL]+A, [CTRL]+C and [CTRL]+V shortcuts behavior when there’s text input. Vary header Chrome caching issues. Case-sensitive and folder rename. Further sanitization of URIs with non-standard or controlled characters that caused file/media operation failures. RegExp filter results count should reflect as per-row. AJAX array issues, changed to hash object. Scroll and click events triggered more than once. Context-Menu hidden on fullscreen video stream, hence missing out the ‘Lock screen’ feature. Media streamer doesn’t stop loading current data on next or close events, had to unload by force on buggy browsers. Forced logout for browsers caching the credentials. WebDAV permissions sometimes not reloaded.

For firmware 04.04.04-101:

90 thoughts on “CloudDAVMod v1.1 for WD My Cloud firmware V4”

  1. Hi Nazar,

    I’m installed the mod successfully but I haven’t been able to log in to the Web GUI. I followed this instruction:

    Default WebGUI: https://WDMyCloud/WDMyCloud (case sensitive). Note
    that you’ll see HTTPS security error prompt, just proceed, on some
    browsers, you’ll need to click on ‘advanced’ prior. Login using any of
    your existing WD MyCloud Dashboard accounts (password required)

    Then I get this –

    I’ve tried every username and password combination I can think of, but it is not accepted, the log in dialog simply pops up again. But I can bring up my usual My Cloud dashboard without any problem, so my username and password must be somewhere, right? I’ve looked in my Chrome passwords, Firefox passwords, Lastpass, Windows Control Panel Windows credentials, no luck with anything. I must be barking up the wrong tree! Can you give me an idea how to find the right combination to get into the WebGUI? Thanks much!

    1. Hi Jim,

      The username and password is the one you use to login the MyCloud Dashboard and make sure you have a password set for it because it won’t let you in without password set.

      1. Hi Nazar, that was it, I didn’t have a password set for the My Cloud, and once I set one, I was able to get into the web gui. Weird, I assumed I did have the password turned on, because i had the password saved in Chrome.

    1. Hi Barry,

      the credentials and instructions was sent to your registered PayPal email. Please check your spam folder or let me know of you still didn’t get them.

    1. I believe the OS 5 is for the 2nd gen My Cloud. These mods are only for the 1st gen firmware v4.

      1. The first generation My Cloud has firmwares numbered 3 and 4, and the OS version for those firmware is OS 3. These My Clouds can not be updated to OS 5.

        The second generation My Cloud has firmware numbered 2 (strange). The OS for these My Clouds can be updated to OS 5.

    1. Hi Zsolt,

      Yes soon. I’m also planning to release the final version after WD support for this model ends after April 15, 2022.

  2. CloudDAVMod Updated! [20220129] Version 1.1-04.05.00-353 released. If you’re using the WebGUI, clear your browser’s cache i.e. CTRL+SHIFT+F5. See here for details: Updates: Planned to release a final version after WD support for this model ends after April 15, 2022. The final version should include updates to the HTTPS certificate in order to continue using the MyCloud online such as remote drive mapping. Testing is in progress but eventually it depends if there’s a final version released by WD.

  3. Hi Nazar,
    I have WD Mycloud Personal v4, I could not SSH into WD Mycloud after updated firmware v04.05.00-353, look like WD has lock SSH feature and dont allow to dowgrade firmware in this final update version? Do you have any ideas to turn SSH on again (I turn it on in dashboard alr, but still could not access ssh. I also tried to downgrade firmware but it returned error).

    1. I don’t think WD locked the SSH in v04.05.00-353. Perhaps there’s a glitch during the update. Are you trying to SSH by using the hostname? Try using its IP instead. Perhaps you could try to update to the same firmware again.

  4. Hi Nazar, I had updated the firmware to 353 and also installed the 353 version of CloudDAVMod. I couldn’t get the CloudDAVMod interface to load completely. I successfully downgraded the firmware and CloudDAVMod to 342, and now the web interface loads again. But the link given in the CloudDAVMod help doesn’t work – Windows gives a “This site cannot be reached” error. The network diagnostics says ” Your DNS server might be unavailable. Windows can’t find the host name “” using DNS. ” Has remote access through links already been disabled for this device? Going forward (after April 15), will there be a way to access the WD My Cloud remotely? Thanks for any help!

    1. p.s. I have Cloud Access turned on in the My Cloud dashboard, and a port forwarding connection is establshed, not a relay connection.

      1. Somehow remote access is now working with the link – I must have had a typo somewhere in the URL. Sorry for the false alarm on that!

        1. Hi Jim,

          No problem glad it turns out good. The WD’s DDNS sometimes is down, that could be the issue. Only after April 15, 2022 then the service will be turned off.

          For the v353 not loading I need to look into it, not sure what happened as it seems to work on my test instance. I’ll need to look at your instance to determine the issue, probably when you’re free we could link up in an email conversation.

Leave a Reply

Your email address will not be published.

To create code blocks or other preformatted text, indent by four spaces:

    This will be displayed in a monospaced font. The first four 
    spaces will be stripped off, but all other whitespace
    will be preserved.
    Markdown is turned off in code blocks:
     [This is not a link](

To create not a block, but an inline code span, use backticks:

Here is some inline `code`.

For more help see