Check that the office computer is on and awake, that Remote Desktop is enabled on it, and that you're connected to the office VPN. Remote Desktop should never be exposed directly to the internet — it's one of the most common ways attackers break into businesses.
Common causes
Office computer asleep or off
Sleep settings and power outages make the computer unreachable.
Remote Desktop not enabled
Remote Desktop must be turned on, and is only available on Windows Pro and higher editions.
Not connected to the VPN
Without the VPN, your home computer can't reach the office network.
Firewall blocking RDP
Windows Firewall or security software may block incoming Remote Desktop connections.
IP address changed
If you connect by IP and the office PC got a new address, you're trying the wrong one.
How to fix it, step by step
- 1
Make sure the office PC stays awake
Set it to never sleep while plugged in, and enable it to restart after power outages if the BIOS allows.
- 2
Enable Remote Desktop
On the office PC, go to Settings > System > Remote Desktop and turn it on.
- 3
Connect to the VPN first
Connect to the office VPN, then start Remote Desktop.
- 4
Use the computer name or a reserved IP
Give the office PC a DHCP reservation so its address doesn't change.
- 5
Check the firewall
Allow Remote Desktop in Windows Firewall for the office network.
When to call a technician
If Remote Desktop was set up by forwarding a port on the router, call us — that's a major security risk. We set up secure remote access through a VPN or a remote access service with multi-factor authentication.
On-site support across Orange County · see our business networking and WiFi installation services.
Frequently asked questions
Is it safe to open port 3389 for Remote Desktop?
No. Exposing Remote Desktop to the internet invites constant attacks and is a leading cause of ransomware. Use a VPN or secure remote access tool.
Does Windows Home support Remote Desktop?
Windows Home can connect to other computers but can't be connected to. The office PC needs Windows Pro or higher.
Why does Remote Desktop work sometimes and not others?
Usually the office computer is going to sleep, or its IP address is changing.