clear unreachable flag upon succesive connect

libi2pd/NetDb.cpp

@@ -424,12 +424,9 @@ namespace data
 		if (r)
 		{
 			r->SetUnreachable (unreachable);
-			if (unreachable)
-			{
-				auto profile = r->GetProfile ();
-				if (profile)
-					profile->Unreachable ();
-			}
+			auto profile = r->GetProfile ();
+			if (profile)
+				profile->Unreachable (unreachable);
 		}
 	}
 

libi2pd/Profiling.cpp

@@ -165,9 +165,9 @@ namespace data
 		}
 	}
 
-	void RouterProfile::Unreachable ()
+	void RouterProfile::Unreachable (bool unreachable)
 	{
-		m_LastUnreachableTime = i2p::util::GetSecondsSinceEpoch ();
+		m_LastUnreachableTime = unreachable ? i2p::util::GetSecondsSinceEpoch () : 0;
 		UpdateTime ();
 	}
 		

libi2pd/Profiling.h

@@ -55,7 +55,7 @@ namespace data
 			void TunnelBuildResponse (uint8_t ret);
 			void TunnelNonReplied ();
 
-			void Unreachable ();
+			void Unreachable (bool unreachable);
 			void Connected ();
 
 			boost::posix_time::ptime GetLastUpdateTime () const { return m_LastUpdateTime; };

libi2pd/Transports.cpp

@@ -716,6 +716,7 @@ namespace transport
 					if (transport == i2p::data::RouterInfo::eNTCP2V4 || 
 						transport == i2p::data::RouterInfo::eNTCP2V6 || transport == i2p::data::RouterInfo::eNTCP2V6Mesh)
 						it->second.router->GetProfile ()->Connected (); // outgoing NTCP2 connection if always real
+					i2p::data::netdb.SetUnreachable (ident, false); // clear unreachable 
 				}		
 				it->second.numAttempts = 0;
 				it->second.router = nullptr; // we don't need RouterInfo after successive connect