If you’re encountering a “Protocol parameter error (‑2)” in Mobile Legends: Bang Bang, here’s what it typically means and how to resolve it:
⚙️ What It Means
This error often appears when you’re trying to receive a verification email, switch Facebook-linked accounts, or attempt account security changes, and indicates that:
Your email or platform (e.g., Facebook) may not be properly bound to the account, so the server doesn’t recognize it.
It’s commonly seen when logging in under a different device or internet connection than usual.
🔍 Real User Reports
From Reddit:
“It’s a bug that means that the email isn’t bound to an account”
“This error pops up when you login from a new internet connection”
🛠️ How to Fix It
✅ 1. Use Your Usual Connection
Log in using the same WiFi or mobile data connection you normally use. Using a VPN or a different network can trigger this error.
✅ 2. Rebind Account Properly
Go to your account settings in Mobile Legends:
If you’re using Moonton, Facebook, or email binding—ensure the binding is successful.
Try unbinding and rebinding the email/Facebook again from the same device and network.
✅ 3. Wait for the Verification Code
If requesting the verification email fails, wait about an hour, as sometimes there’s a delay in code delivery—though note codes often expire quickly.
✅ 4. Avoid VPNs
Disable any VPN or proxy service during login or binding—it can interfere with server validation.
✅ 5. Contact Moonton Support
If none of the above works, open Customer Service > Report within the game and submit technical support form under “Login/Account Issues” or “Other Issues”. Provide:
Your Account ID, Server ID, device model, email or linked platform details.
This gives support enough info to assist you.
Also read : www.mybalancenow.com Visa
🧾 Summary Table
| Issue | Solution |
|---|---|
| Switching account or logging in gives protocol error (‑2) | Use same network as before; avoid VPNs |
| Verification emails not received or expired | Try again from same device/network; wait for a delayed email |
| Email or social login not recognized | Rebind account with correct platform settings |
| Still stuck? | Use in-game customer service to report the issue directly |
🚫 What to Avoid
Don’t switch networks mid-process.
Avoid using VPNs or different Wi-Fi sources while binding or verifying.
Don’t switch devices without ensuring your account binding is stable.
✅ Bottom Line
Protocol parameter error (‑2) typically means the login email or linked account isn’t recognized—often due to unbound credentials or using a new device/connection. Resolving the issue involves:
Logging in using your usual network (same WiFi or mobile data).
Rebinding your email/Facebook account cleanly.
Being patient with delayed verification and not using VPN.
Reporting the issue through in-game customer support if needed.
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