diff --git a/libretroshare/src/pqi/authssl.cc b/libretroshare/src/pqi/authssl.cc
index c7cfd0469..dc16698fb 100644
--- a/libretroshare/src/pqi/authssl.cc
+++ b/libretroshare/src/pqi/authssl.cc
@@ -2217,6 +2217,15 @@ int AuthSSL::VerifyX509Callback(int preverify_ok, X509_STORE_CTX *ctx)
             //set location
             mConnMgr->setLocation(certId, getX509LocString(X509_STORE_CTX_get_current_cert(ctx)->cert_info->subject));
 
+            //Cgheck if peer isn't already connected
+            peerConnectState detail;
+            if (mConnMgr->getFriendNetStatus(certId, detail)) {
+                if (detail.state & RS_PEER_CONNECTED && detail.connecttype & RS_NET_CONN_TUNNEL) {
+                    fprintf(stderr, "AuthSSL::VerifyX509Callback this peer is already connected, refuse a new connection.");
+                }
+            }
+
+
         }
 
         if (preverify_ok) {