log when exporter works again

main.go

@@ -66,9 +66,11 @@ func errLog(err error) {
 	opsZPosition.Set(0)
 	opsBed.Set(0)
 	opsNozzle.Set(0)
-	if errCount > 5 {
+	if errCount == 5 {
 		log.Printf("suppressing further error logging")
 		return
+	} else if errCount > 5 {
+		return
 	}
 	log.Printf("error retrieving telemetry: %v", err)
 }
@@ -98,6 +100,9 @@ func recordMetrics(ctx context.Context, config Config) {
 					errLog(err)
 					break
 				}
+				if errCount != 0 {
+					log.Printf("connection established")
+				}
 				errCount = 0
 				opsFlowFactor.Set(float64(t.FlowFactor))
 				opsPrintSpeed.Set(float64(t.PrintingSpeed))