May 18, 2017
How to fix P2P matcher error in mangle rules
![](https://5af108.a2cdn1.secureserver.net/wp-content/uploads/2017/05/screenshot.556-1-150x150.png)
You have upgraded to RouterOs 6.39.x and now your P2P mangle rules are no longer working. This issue is caused by MikroTik removing the P2P option/field from the mangle rules. There explanation is that this method of matching P2P traffic is obsolete. The image above shows what the error looks like. To fix this