diff --git a/app/services/qualys_service.py b/app/services/qualys_service.py
index d795bc2..2e206ac 100644
--- a/app/services/qualys_service.py
+++ b/app/services/qualys_service.py
@@ -627,8 +627,18 @@ def _refresh_all_agents_impl(db):
                 fqdn = (parse_xml(block, "fqdn") or [""])[0]
                 netbios = (parse_xml(block, "netbiosName") or [""])[0]
                 os_val = (parse_xml(block, "os") or [""])[0]
-                # Priorite FQDN > NetBIOS > name (display Qualys peut etre tronque)
-                hostname_src = fqdn or netbios or name
+                # Priorite name (Qualys display) sauf si c'est une IP ou vide -> FQDN -> NetBIOS
+                import re as _re
+                def _valid(h):
+                    if not h:
+                        return False
+                    h = h.strip().lower()
+                    if h in ("localhost", ""):
+                        return False
+                    if _re.match(r"^\d+\.\d+\.\d+\.\d+$", h):
+                        return False
+                    return True
+                hostname_src = name if _valid(name.split(".")[0]) else (fqdn if _valid(fqdn.split(".")[0]) else netbios)
                 hostname = hostname_src.split(".")[0].lower() if hostname_src else ""
 
                 agent_status = ""