diff --git a/FAQ.md b/FAQ.md
index 1c67aae4f1..db42062260 100644
--- a/FAQ.md
+++ b/FAQ.md
@@ -4636,6 +4636,13 @@ Note that FairEmail does support replying to calendar invites (a pro feature) an
🌎 [Google Translate](https://translate.google.com/translate?sl=en&u=https%3A%2F%2Fm66b.github.io%2FFairEmail%2F%23faq139)
+
+
+Firstly, please check if the *Tenant ID* field below the email address field is empty,
+and when you need to use it, please ensure the correct Tennant ID is entered.
+
+
+
The confusing Microsoft specific server error *User is authenticated but not connected* might occur if:
**Consumer Outlook/Hotmail/Live account**
diff --git a/index.html b/index.html
index 573414ce40..978d396ba7 100644
--- a/index.html
+++ b/index.html
@@ -2385,6 +2385,9 @@ $NotDisplayed
(139) How do I fix ‘User is authenticated but not connected’?
+Firstly, please check if the Tenant ID field below the email address field is empty, and when you need to use it, please ensure the correct Tennant ID is entered.
+The confusing Microsoft specific server error User is authenticated but not connected might occur if:
Consumer Outlook/Hotmail/Live account