diff --git a/README.md b/README.md
index b033c6a..e4f1380 100755
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+++ b/README.md
@@ -155,3 +155,5 @@ The entity information is updated every 30 seconds (default or other value is ch
 ## Known problems
 
 During first setup the communication to the weather station can be a bit tricky, resulting in an error saying the device didn't communicate. Please try again to set it up (can take up to 5 times).
+
+If Wind Gust doesn't show a value or "Unknown" make sure the Davis time is set correctly. You can check this by using service "Davis Vantage: Get Davis Time" and, if necessary, correct it by using service "Davis Vantage: Set Davis Time".
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