diff --git a/PVE/Status/InfluxDB.pm b/PVE/Status/InfluxDB.pm
index de291de..49c702a 100644
--- a/PVE/Status/InfluxDB.pm
+++ b/PVE/Status/InfluxDB.pm
@@ -267,6 +267,11 @@ sub test_connection {
         }
         my $response = $ua->get($url);
 
+        # the InfluxDB v2 listener of Telegraf before 1.36 only has the ready endpoint
+        if ($response->code == 404) {
+            $response = $ua->get(_get_v2url($cfg, "ready"));
+        }
+
         if (!$response->is_success) {
             my $err = $response->status_line;
             die "$err\n";