diff --git a/dish_grpc_text.py b/dish_grpc_text.py
index 77f6923..06fe99e 100644
--- a/dish_grpc_text.py
+++ b/dish_grpc_text.py
@@ -4,6 +4,11 @@
 This script pulls the current status info and/or metrics computed from the
 history data and prints them to stdout either once or in a periodic loop.
 By default, it will print the results in CSV format.
+
+Note that using this script to record the alert_detail group mode as CSV
+data is not recommended, because the number of alerts and their relative
+order in the output can change with the dish software. Instead of using
+the alert_detail mode, you can use the alerts bitmask in the status group.
 """
 
 from datetime import datetime
diff --git a/starlink_grpc.py b/starlink_grpc.py
index 921c2f8..b7c02f2 100644
--- a/starlink_grpc.py
+++ b/starlink_grpc.py
@@ -107,14 +107,16 @@ their nature, but the field names are pretty self-explanatory.
 
 : **alert_motors_stuck** : Alert corresponding with bit 0 (bit mask 1) in
     *alerts*.
-: **alert_thermal_throttle** : Alert corresponding with bit 1 (bit mask 2) in
+: **alert_thermal_shutdown** : Alert corresponding with bit 1 (bit mask 2) in
     *alerts*.
-: **alert_thermal_shutdown** : Alert corresponding with bit 2 (bit mask 4) in
+: **alert_thermal_throttle** : Alert corresponding with bit 2 (bit mask 4) in
     *alerts*.
 : **alert_unexpected_location** : Alert corresponding with bit 3 (bit mask 8)
     in *alerts*.
 : **alert_mast_not_near_vertical** : Alert corresponding with bit 4 (bit mask
     16) in *alerts*.
+: **slow_ethernet_speeds** : Alert corresponding with bit 5 (bit mask 32) in
+    *alerts*.
 
 General history data
 --------------------
@@ -555,7 +557,8 @@ def status_data(context=None):
     for field in status.alerts.DESCRIPTOR.fields:
         value = getattr(status.alerts, field.name)
         alerts["alert_" + field.name] = value
-        alert_bits |= (1 if value else 0) << (field.index)
+        if field.number < 65:
+            alert_bits |= (1 if value else 0) << (field.number - 1)
 
     return {
         "id": status.device_info.id,