By Ellie / Last Updated February 14, 2022

Meet with RD Client iOS error 0x3000015

I tried to access my PC from my iPhone and I installed the “remote desktop” app and complete the settings. However, I got the 0x3000015 error code and it shows “We couldn’t connect to the Remote Desktop Gateway because of an internal error”. What should I do to solve it?

Error Code

Generally, Error code 0x3000015 will appear when we attempt to use RD Client to access or control a remote PC if the WVD settings didn’t turn on or the wrong workspace of the RD Client. And it will show as “An internal error has occurred” when the error code appears on Windows PC. There’s no denying that the error code influences people’s experience and feelings while communicating with the Remote Desktop Gateway.

How to fix the RD Client error 0x300001

To fix the RD Client iOS error 0x3000015, here we come up with 2 solutions with detailed steps to get you out of the trouble. Before the operation, make sure that 2 devices are on the same network.

Method 1. Reset the RD Client App

It is said that the error is because of the wrong settings of the iOS device. So, the issue may be addressed by resetting the RD Client app.

Step 1. Close all the open apps and then open Settings.

Settings of iPhone

Step 2. Find the app “RD Client”.

Find RD Client

Step 3. Locate on “WVD SECURITY TOKENS” and find “Delete on App Launch”.

Delete on App Launch

Step 4. Turn on the button of the “Delete on App Launch”.

Turn on Delete on App Launch

Method 2. Remove and reinstall the RD Client

If the method above can’t fix the error, we can resort to another way. According to the feedback of some users, RD Client on iOS works fine after they remove and reinstall the RDC app and then re-established the connection. Here we can try how to do it.

Step 1. Long-press the app and then choose “Delete”. After that, search Remote Desktop in the app store and then download it.

Step 2. Download and open RD Client on iOS device.

Open the App

Step 3. Click the “+” sign in the upper right corner, and select “Add Computer” in the pop-up window.

Add a Computer

Step 4. Click on “PC Name”. Enter the hostname or IP address of the host PC.

Enter Hostname

Step 5. Click on “User Account”. If you often need to remotely control a PC from iPhone, it is recommended that you select “Add User Account”.

Add User Account

Step 6. Back to the main interface and click the IP address icon just created, enter the user name and password of the host PC in the pop-up window, and click “Continue”.

Enter Account and Password

Step 7. Then you can remotely access the PC right now. 

Mobile Remote Control PC

AnyViewer: easily realize remote access from iOS devices

After trying the 2 solutions above, did you still meet with the RD Client iOS error 0x3000015? If the issue disappears, it’s our great honor to help you. But if you are still be stuck in the error code, we recommend an easier and more convenient way to help you realize remote access from iOS devices. That’s AnyViewer.

 As a remote access software, AnyViewer can give you a better experience on remote connection for its fast connection speed, flexible methods, and low latency.
 Compared to RD Client, AnyViewer is easier to set up and it supports more Windows versions including Windows 10 Home Edition and Windows 7 Standard Edition. 
More importantly, AnyViewer won’t be limited by the same LAN, which means you don’t need to perform port forwarding if 2 devices are not on the same network.

Follow me and put it into practice.

Download AnyViewer for PC:

Download Freeware Win 11/10/8.1/8/7
Secure Download

Download AnyViewer for iOS device:

Download Freeware iOS 10.0 or later
Secure Download

Step 1. Install and open AnyViewer on Windows PC. Click on “Settings”.


Step 2. Then click on “Recipient” > “Set my security code”. Type in the security code. After that, click “OK” to save the settings and return to the main interface.

Accept Remote Control

Step 3. On iOS device, enter the device ID of the PC. And then click on “Connect”.

Enter Device ID

Step 4. There are 2 options for attended access and unattended access accordingly will be given to you. Choose one of the options according to your needs.

Option 1. Send control request

Step 1. Click ”Send control request”.

Control Mode

Step 2. There will be a pop-up message on the PC. Click on the hook icon to allow the connection.

Approve Control

Option 2. Security code

Step 1. On the iOS device, click on “Security code”.

Control Mode

Step 2. Input either the security code set and then click on “Connect” to achieve a remote connection.

Input Security Code

Now, no matter what choices you make, you can successfully access the remote PC.

Virtual Mouse


2 ways like re-installing the RD Client and resetting the app to fix RD Client iOS error 0x3000015 are shown for you. You may have already addressed it. If you are not, we recommend an easy-operated remote access software-- AnyViewer for you to easily realize remote access from iOS.