diff --git a/check_shelly b/check_shelly
index 6fea73b..c166ad2 100755
--- a/check_shelly
+++ b/check_shelly
@@ -8,8 +8,8 @@ import urllib.request
 
 CHECKS = ['wifi', 'mqtt', 'memory', 'filesystem', 'temperature']
 #
-WIFI_QUALITY_ERROR = -30
-WIFI_QUALITY_WARNING = -50
+WIFI_QUALITY_ERROR = -90
+WIFI_QUALITY_WARNING = -85
 #
 RAM_ERROR = .15
 RAM_WARNING = .30
@@ -41,9 +41,9 @@ if __name__ == "__main__":
     if args.check == 'wifi':
         connected = data['wifi_sta']['connected']
         quality = data['wifi_sta']['rssi']
-        if not connected or quality > WIFI_QUALITY_ERROR:
+        if not connected or quality <= WIFI_QUALITY_ERROR:
             status = n.ERROR
-        elif quality > WIFI_QUALITY_WARNING:
+        elif quality <= WIFI_QUALITY_WARNING:
             status = n.WARNING
         else:
             status = n.OK