diff --git a/broker/ntgvision.go b/broker/ntgvision.go
index c793656..91e6323 100644
--- a/broker/ntgvision.go
+++ b/broker/ntgvision.go
@@ -146,7 +146,7 @@ func (ntg NTGVision) _search(states []config.State) (io.ReadCloser, error) {
 	if resp.StatusCode != http.StatusOK {
 		b, _ := ioutil.ReadAll(resp.Body)
 		resp.Body.Close()
-		if resp.StatusCode > 400 && resp.StatusCode < 404 {
+		if resp.StatusCode > 400 && resp.StatusCode < 500 && resp.StatusCode != 404 && resp.StatusCode != 410 {
 			return nil, ErrNoAuth
 		}
 		return nil, fmt.Errorf("bad status searching ntg: %d: %s", resp.StatusCode, b)