What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
iTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more
I recently received the error message “Remote Desktop Connection an Internal Error Has Occurred”. It was strange because up until the time I received this message I used Remote Desktop to connect to the computer without any problem.
What Causes the Error
Like many error message in Windows, this could mean a number of things. In my case, it was a DNS issue. Meaning, when I RDP to the said computer using it’s name, my computer was not able to determine its IP address. So, it returned this error message. Not very helpful but that is Microsoft’s Windows for you!
Fix (Step 1): Test for Connectivity
The first step to troubleshoot this error message is to check that you can ping the computer
If you are in a domain environment, ask your administrator to check that the computer you are connecting to is properly configured in the DNS server. That is, it has the proper records in the DNS server.
Follow the steps below to complete this step:
- If you have access to the computer, logon to it locally, search for cmd. Then open Command Prompt. When it opens, run the command below:
IPCONFIG
Note the IPv4 address. See the highlighted portion of the image above.
#1 Best Overall
- 5 in 1 Connectivity: The USB C Multiport Adapter is equipped with a 4K HDMI port, a 100W USB C PD port, a 5 Gbps USB A data port, and two 480 Mbps USB A ports
- Back to your computer (where you make the RDP connection from), run the command below:
PING <IP address>
Replace <IP address> with the computer’s IP address.
- If the computer is reachable via it’s IP address, you should receive replies. See the image below.
If you received a reply, it confirms that “Remote Desktop Connection an Internal Error Has Occurred” error has nothing to do with the computer not reachable.
If you do not receive a reply, check that the computer’s network cable is connected. You could also check the firewall on the computer.
Next, you need to confirm that you can telnet to the computer’s IP on port 3389 (Remote desktop port number). On your computer, open command prompt. Then enter the command below and press the Enter key on your keyboard.
Rank #2
- [7-in-1 Multi-port USB C Hub] Acer USBC adapter macbook is made of Aluminum material, expands a USB-C port to 7 ports (1*HDMI 4K@30HZ, 2*USB 3.1, 1*USB-C, 1*Type-C PD charging, 1*MicroSD card slot, 1*SD card slot). The USB hub expands your work from home, office, or on the go. 📌Note: Please connect the power supply with the PD port to provide sufficient power for the USB C hub dongle .
- [4K USB-C to HDMI Adapter] This USB C to hdmi adapter can mirror or extend your screen with an HDMI port. You can use USBC hub to directly stream 4K@30Hz or full HD 1080P video to HDTV, monitors, and projector, which also bring an immersive 3D resolution experience. 📌Note: USB-C devices should support USB Type-C DP Alt Mode(Video transmission function), and 📌NOT for 4K@60Hz and 2K@144Hz.
- [100W Power Delivery] The USB C multiport adapter features Type C fast charge PD port to provide up to 100W of high-speed charging for laptops. Get your USB C devices charged, No Worry about the power while using the other functions. Ideal for MacBook Pro/Air and other USB-C devices. 📌Ensure your laptop's USB-C port supports PD protocol and use a 65W+ charger for best performance.
- [Efficient 5Gbps Data Transfer] Two high-speed USB-A 3.1 ports and one USB-C port enable fast data transfer up to 5Gbps. The USBC dongle can expand your work efficiency either from home or the office. 📌Note: ONLY Support Data Transfer, NOT Support video/audio.
- [Wide Compatibility] The USB C dongle adapter crafted with a high-quality aluminum housing for enhanced durability and heat dissipation. USB hub for laptop is for MacBook Pro, MacBook Air, Acer, XPS, Laptops and Works on Windows, ChromeOS, Linux, Mac OS X 10.5 or higher. 📌Please turn on the Samsung DeX Mode on the Samsung Galaxy Tablet before you use it.
telnet <IP address> 3389
Change <IP address> to the IP address of the computer.
If the telnet is successful, you should see a blank screen as shown in the image below.
Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Scan for outdated or missing drivers - takes under a minute3Clear out junk files and repair common Windows errors
Fix (Step 2): Adjust RDP Experience Settings
The next step to fixing this RDP error is to RDP using its IP address. But first, you need to modify your Remote Desktop settings.
Rank #3
- 【7 in 1 Multi-functional Hub】 USB C hub with 1 x USB 3.0 port and 4 x USB 2.0 ports, 2 x USB C 2.0 port . USB 3.0, 5Gb/s transfer speed , USB 2.0: 480bps transfer speed, quickly transfer and download videos, music, photos and other files.
- 【Wide Compatibility】 This USB C hub Compatible with USB-C compatible with MacBook Pro/MacBook Retain/MacBook Air or devices with a Type C port，Windows 10, MacOS X, Android, Chrome OS Google (Up), Linux with the latest updates day.
- 【High-Speed Data Transfer】The usb c hub and usb hub equipped with USB Hub 3.0 port, this extra ports for laptop hub enables fast data transfer speeds of up to 5Gbps, allowing you to transfer large files, photos, and videos in seconds. Enjoy a seamless and efficient workflow with this powerful expansion dock.
- 【Wide Appliaction】BERLAT 7-port USB Extender applies to various devices: laptop, pc tower, XBOX, PS4, flash drive, keyboard, mouse, card reader, HDD, cellphone OTG adapter, printer, camera, USB fan or any other USB Peripherals.
- 【 Sleek and Portable Design】Featuring a compact and lightweight design, this USB Type-C expansion dock hub is perfect for on-the-go use. Its durable aluminum alloy casing ensures long-lasting performance, making it an essential accessory for your devices.
Here are the steps:
- Open Remote Desktop Connection. Then click Show options.
- Then click the Experience tab. On the Experience tab, uncheck Reconnect if the connection is dropped.
Now, you need to enter the computer’s IP address and connect.
Here are the steps:
- Click the General tab. Then on the Computer field, enter the IP address. Finally, click Connect. If you receive a certificate warning (second image below), check Don’t ask me again for connections to this computer box. Then click Yes.
You should be able to RDP to the computer successfully.
Rank #4
- Ultra-Fast Data Transfers: Experience the power of 5Gbps transfer speeds with this USB hub and sync data in seconds, making file transfers a breeze.
- Long Cable, Endless Convenience: Say goodbye to short and restrictive cables. This USB hub comes with a 20 cm long cable, giving you the freedom to connect your devices exactly where you need them.
- Instant Connectivity: Anker USB-C data hub offers a true plug-and-play experience, instantly connecting your devices and enabling seamless file transfers.
- What You Get: Anker USB-C Data Hub (4-in-1, 5Gbps), welcome guide, our worry-free 18-month , and friendly customer service.
Conclusion
The fix suggested in this guide should resolve the “Remote Desktop Connection an Internal Error Has Occurred” error message.
Free tools Windows power users keep installed
One-click scans. No signup required.
I hope you found this Itechguide helpful. If you were able to fix this error with the aid of the steps in this guide, kindly let us know using the “Leave a Reply” form at the bottom of this page.
Best Value
- 【4 Ports USB 3.0 Hub】Acer USB Hub extends your device with 4 additional USB 3.0 ports, ideal for connecting USB peripherals such as flash drive, mouse, keyboard, printer
- 【5Gbps Data Transfer】The USB splitter is designed with 4 USB 3.0 data ports, you can transfer movies, photos, and files in seconds at speed up to 5Gbps. When connecting hard drives to transfer files, you need to power the hub through the 5V USB C port to ensure stable and fast data transmission
- 【Excellent Technical Design】Build-in advanced GL3510 chip with good thermal design, keeping your devices and data safe. Plug and play, no driver needed, supporting 4 ports to work simultaneously to improve your work efficiency
- 【Portable Design】Acer multiport USB adapter is slim and lightweight with a 2ft cable, making it easy to put into bag or briefcase with your laptop while traveling and business trips. LED light can clearly tell you whether it works or not
- 【Wide Compatibility】Crafted with a high-quality housing for enhanced durability and heat dissipation, this USB-A expansion is compatible with Acer, XPS, PS4, Xbox, Laptops, and works on macOS, Windows, ChromeOS, Linux
Alternatively, you can respond to the “Was this page helpful?” question below.
Lastly, visit our Windows 10 Fix-it guides pages to find more Windows 10 fixes.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
![DistributedCOM DC Server Event ID 10016 DCDIAG Error [Fixed]](https://www.itechguides.com/wp-content/uploads/2025/04/DistributedCOM-DC-Server-Event-ID-10016-DCDIAG-Error-Fixed-768x494.jpg)
![Attribute Editor Tab Missing in ADUC [Fixed]](https://www.itechguides.com/wp-content/uploads/2024/03/Attribute-Editor-Tab-Missing-in-ADUC-Fixed-featured-image-768x512.jpg)
What does it mean if I can’t telnet to the computer’s IP on port 3389? I typed in “telnet 3389″ and I got the message back ” ‘telnet’ is not recognized as an internal or external command, operable program or batch file.” I don’t know if I should still move along in the directions since I’m not getting the blank screen as shown above?
Ok, so, I found out that my Telnet client was set to off and turned it on. Now I am getting “Connecting to …Could not open connection to the host, on port 3389: Connection Failed.” What does this mean?
There could be 2 reasons for this:
1. Remote Desktop is not enabled on the computer. Use this guide to enable RDP – https://www.itechguides.com/how-to-setup-remote-desktop-on-windows-10/
2. If RDP is enabled, the port may be blocked by Widows firewall. Open port 3389 on the remote PC –