FAQ

Frequently Asked Questions

Android

Titan VPN is not available on the Google Play Store.
Please install the APK directly using the method below.

  • Open the following URL in your phone browser: https://titan.jobjapan.com
  • Click [Download] → Download the APK file
  • Enable "Unknown Sources" and install
    (Settings → Security → Unknown Sources)
  • Launch the app → Enter ID/Password → Select server → Connect
iOS (iPhone/iPad)
  • Search for "Titan VPN" on the App Store
  • Install and launch the app
  • Enter ID/Password → Select server → Connect
⚠️ Titan VPN is not searchable with a China region Apple ID.
→ Temporarily change your Apple ID region to Korea, or
→ Use a shared Apple ID provided by Titan. (Contact support for shared ID)
Windows PC
  • Visit https://titan.jobjapan.com in your PC browser
  • Click [Windows Download] → Run the installer
  • After installation, enter ID/Password → Select server → Connect
macOS (MacBook)
  • Click [macOS Download] from the site above
  • Run the DMG file → Drag to Applications
  • Launch the app → Enter ID/Password → Connect
⚠️ If installation is blocked due to security:
→ Mac Settings → Privacy & Security → Click "Open Anyway" at the bottom

※ If you cannot access the site from China, use the backup address: https://www.titanvpn.kr

Products & Pricing

👉 View pricing page

▶ Korean Auto-Payment

  • 1 Line (1 simultaneous connection): from ￦8,300/month
  • 2 Line (2 simultaneous connections): from ￦14,000/month
  • 6 Line (6 simultaneous connections): from ￦43,300/month

▶ China Alipay / WeChat Pay

  • 1 Line (1 simultaneous connection): from ¥69/month
  • 2 Line (2 simultaneous connections): from ¥99/month
  • 6 Line (6 simultaneous connections): from ¥328/month

※ Discounts available for 3/6/12-month plans

Payment Methods
  • Credit Card (Korean / International)
  • Bank Transfer
  • Alipay / WeChat Pay
How to Renew
  • Log in at titanvpn.kr
  • [MyPage] → [Renew Subscription]
  • Select plan/period → Pay
Refund Policy
  • Full refund within 7 days of payment if unused
  • Pro-rated refund if service was used
  • Request via support or kakaovpn@naver.com
  • ChannelTalk consultation: https://titan.channel.io/
Payment Not Reflected?
  • Card/Transfer: Usually reflected within 5 minutes
  • Alipay/WeChat: Up to 10 minutes
  • If not reflected after 10 minutes, please send a payment screenshot with your email to support
🔵 VPN connects but no Internet? (Mac / Windows users)
This is almost always an MTU issue. Takes 1 minute to fix → Open MTU Setup Guide
App Not Launching
  • Force close and relaunch the app
  • Reboot your device and try again
  • Uninstall → Reinstall (your data is stored on the server)
VPN Not Connecting
  • Try switching to a different server
  • Switch between WiFi ↔ LTE/5G
  • Disconnect → Close app → Relaunch → Connect
Cannot Connect from China
  • Refresh the server list in the app
  • China Mobile: Try KT servers
  • China Unicom: Try SK servers
  • China Telecom: Try both KT and SK
  • Speed may decrease during peak hours (8PM-12AM)
If still not working

Please provide the following for faster support:

  • Device type (Android/iPhone/PC)
  • Country/Carrier (e.g., China Mobile)
  • Server name you tried
  • Error message or screenshot
🔵 VPN connects but no Internet? (Mac / Windows users)
This is almost always an MTU issue. Takes 1 minute to fix → Open MTU Setup Guide
Basic Troubleshooting
  • Check internet speed without VPN first
  • Try switching to a different server
  • Switch between WiFi ↔ LTE/5G
  • Close and relaunch the app
Recommended Servers by China Carrier
  • China Mobile: KT servers recommended
  • China Unicom: SK servers recommended
  • China Telecom: Try both KT and SK
Peak Hours

8PM-Midnight: Internet congestion across China. Speed may be slower during these hours. Morning/afternoon is optimal.

PC Users
  • OpenVPN may be more stable than IKEv2 in some cases
  • Antivirus/firewall may block VPN traffic — try disabling temporarily
Remove Other VPN Apps
⚠️ Other VPN apps may cause conflicts and slow down your connection. Please uninstall any unused VPN apps.
Restart WiFi Modem

If using WiFi, turning off the modem/router for 2-3 minutes and restarting often improves speed.

🔵 VPN connects but no Internet? (Mac / Windows users)
This is almost always an MTU issue. Takes 1 minute to fix → Open MTU Setup Guide
Error Code 809

Cause: Firewall or NAT blocking VPN ports

  • Windows Firewall → Advanced → Inbound Rules → Allow UDP 500, 4500
  • If using a router, enable IPsec Passthrough
  • Try using OpenVPN client instead of IKEv2
Error Code 812

Cause: Authentication failed (wrong ID/password or expired)

  • Verify your email and password
  • Reset password at titanvpn.kr/login
  • Check if subscription has expired (MyPage)
Error Code 691

Cause: Account authentication failed — same solutions as Error 812

RAS / Adapter Error
  • Reset network adapter: Settings → Network → Status → Network Reset
  • Reboot PC and reconnect
  • Delete IKEv2 VPN connection and re-create it
IKEv2 Setup Guide
  • Settings → Network → VPN → Add VPN Connection
  • VPN Provider: Windows (built-in)
  • Server: Enter provided server address
  • VPN Type: IKEv2
  • Login: Enter email/password
What is Simultaneous Access?

The number of devices that can connect to VPN at the same time with one account.

Connections by Plan
  • 1 Line: 1 device
  • 2 Line: 2 devices
  • 6 Line: 6 devices (any device type)
When Exceeded

If all allowed connections are in use, additional connections will be blocked. Disconnect another device first.

Stale Sessions

If a device disconnected abnormally, the session may remain active for 5-10 minutes before auto-cleanup. Contact support for immediate session reset.

Upgrade

You can increase your simultaneous connections by upgrading your plan on the pricing page.

Forgot Password
  • Visit titanvpn.kr/login
  • Click [Forgot Password]
  • Enter your email → Reset email will be sent
  • Click the reset link in the email
※ If you do not receive the email, check your spam/junk folder.
Forgot Email (ID)

Your registration email is your ID. Check the email used for payment, or contact support.

Logged In But VPN Not Connecting
  • Check if your subscription has expired (MyPage)
  • Check if simultaneous connections are exceeded
  • Verify the password entered in the app (spaces may be included when copy-pasting)
New Registration

👉 Sign up here

Enter email and password to register. After payment, you can use the service immediately.

When the verification email does not arrive in Gmail

If you cannot find the verification email after signing up, please check the following.

  • 1. Check the Spam folder — The most common cause. The verification email may be marked as spam.
  • 2. Check the 'Promotions' tab — Gmail splits the inbox into Primary/Promotions/Social. The email may be in the 'Promotions' tab.
  • 3. Letter case does not matter — ABC@gmail.com and abc@gmail.com are the same mailbox. Case is never the reason it fails to arrive.
  • 4. Ignore the 'Google security alert' email — It is only a "new sign-in" notice and is unrelated to verification.
  • 5. Refresh after 1-2 minutes — Delivery may be slightly delayed.
If you still cannot find it, please tell us the email address you registered with and an agent will activate your account directly.
* After activation you can log in, but VPN connection works only after payment (subscription period granted).