Fixing IPv6 Conflicts for Meccha Chameleon

Some internet service providers have incomplete or misconfigured IPv6 implementations. When your system is running in dual-stack mode (both IPv4 and IPv6 active), the game may attempt to connect over IPv6, fail, and then fall back to IPv4 — causing delays, timeouts, or disconnections. This guide shows you how to disable IPv6 temporarily or fix the underlying issue.

When IPv6 Causes Problems

IPv6 issues in Meccha Chameleon typically appear as:

• Game takes a long time to connect to lobbies
• Frequent disconnections mid-match
• “Connection timed out” errors when joining friends
• NAT type shows as Strict even after enabling UPnP

The root cause is usually one of:

• Your ISP’s IPv6 routing is broken or incomplete
• Your router advertises IPv6 but does not properly forward it
• The game tries IPv6 first, fails, then falls back to IPv4 with added latency

Fix-Level Solutions

1. Disable IPv6 on Your Network Adapter (Quick Fix)

This is the fastest way to test if IPv6 is your problem.

1. Press Windows Key + R, type ncpa.cpl, and press Enter.
2. Right-click your active network adapter (Wi-Fi or Ethernet) and select Properties.
3. Scroll down and uncheck Internet Protocol Version 6 (TCP/IPv6).
4. Click OK.
5. Restart your PC.
6. Launch Meccha Chameleon and test your connection.

If this fixes your issue, you can leave IPv6 disabled or follow the permanent fixes below.

2. Set IPv6 to Prefer IPv4 (Permanent Fix)

Instead of disabling IPv6 entirely, you can make Windows prefer IPv4 for most connections while keeping IPv6 available.

1. Open PowerShell as Administrator.
2. Run:

   Set-NetIPv6Protocol -AddressFamily PreferIPv4

3. Restart your PC.

This makes Windows try IPv4 first for new connections while still using IPv6 when explicitly required.

3. Fix Router IPv6 Configuration

If your router advertises IPv6 but does not properly route it:

1. Log into your router admin panel.
2. Find IPv6 Settings (usually under WAN or Advanced Network).
3. Try setting IPv6 to Disabled or Passthrough mode.
4. Save changes and restart the router.
5. Restart your PC and test.

4. Update Network Adapter Drivers

Outdated drivers can cause IPv6 to malfunction:

1. Open Device Manager.
2. Expand Network adapters.
3. Right-click your adapter > Update driver.
4. Select Search automatically.
5. Restart after installation.

5. Reset TCP/IP Stack

If IPv6 corruption is persistent, resetting the entire TCP/IP stack can help:

1. Open Command Prompt as Administrator.
2. Run these commands:

   netsh int ipv6 reset reset.log
   netsh int ip reset reset.log
   netsh winsock reset
   ipconfig /flushdns

3. Restart your PC.

Re-enabling IPv6 Later

When your ISP fixes their IPv6 implementation:

1. Press Windows Key + R, type ncpa.cpl, press Enter.
2. Right-click your adapter > Properties.
3. Re-check Internet Protocol Version 6 (TCP/IPv6).
4. Click OK and restart.

You can test IPv6 health by visiting https://test-ipv6.com/ in your browser. A score of 10/10 means IPv6 is working correctly and safe to re-enable.

For additional network troubleshooting, see the NAT Type Fix and DNS Flush Reset guides.