diff --git a/tests/data/DISABLED b/tests/data/DISABLED
index b0637dcbe4..d9f2e00ba4 100644
--- a/tests/data/DISABLED
+++ b/tests/data/DISABLED
@@ -7,7 +7,3 @@
 592
 593
 594
-1206
-1207
-1208
-1209
diff --git a/tests/data/test1206 b/tests/data/test1206
index 862c4bdf42..ba578a1e2a 100644
--- a/tests/data/test1206
+++ b/tests/data/test1206
@@ -36,6 +36,12 @@ FTP PORT and 425 on download
 <strippart>
 s/^EPRT \|1\|(.*)/EPRT \|1\|/
 </strippart>
+
+# The protocol part does not include QUIT simply because the error is
+# CURLE_OPERATION_TIMEDOUT (28) which is a generic timeout error without
+# specificly saying for which connection it concerns, and for timeouts libcurl
+# marks the control channel as "invalid". As this test case times out for the
+# data connection it could still use the control channel.
 <protocol>
 USER anonymous
 PASS ftp@example.com
@@ -44,10 +50,9 @@ EPRT |1|
 TYPE I
 SIZE 1206
 RETR 1206
-QUIT
 </protocol>
 <errorcode>
-19
+28
 </errorcode>
 </verify>
 </testcase>
diff --git a/tests/data/test1207 b/tests/data/test1207
index acc6427b79..6ca713196e 100644
--- a/tests/data/test1207
+++ b/tests/data/test1207
@@ -36,6 +36,12 @@ FTP PORT and 421 on download
 <strippart>
 s/^EPRT \|1\|(.*)/EPRT \|1\|/
 </strippart>
+
+# The protocol part does not include QUIT simply because the error is
+# CURLE_OPERATION_TIMEDOUT (28) which is a generic timeout error without
+# specificly saying for which connection it concerns, and for timeouts libcurl
+# marks the control channel as "invalid". As this test case times out for the
+# data connection it could still use the control channel.
 <protocol>
 USER anonymous
 PASS ftp@example.com
@@ -44,10 +50,9 @@ EPRT |1|
 TYPE I
 SIZE 1207
 RETR 1207
-QUIT
 </protocol>
 <errorcode>
-19
+28
 </errorcode>
 </verify>
 </testcase>
diff --git a/tests/data/test1208 b/tests/data/test1208
index 7a81eecd91..725d18afad 100644
--- a/tests/data/test1208
+++ b/tests/data/test1208
@@ -36,6 +36,12 @@ FTP PORT download, no data conn and no transient negative reply
 <strippart>
 s/^EPRT \|1\|(.*)/EPRT \|1\|/
 </strippart>
+
+# The protocol part does not include QUIT simply because the error is
+# CURLE_OPERATION_TIMEDOUT (28) which is a generic timeout error without
+# specificly saying for which connection it concerns, and for timeouts libcurl
+# marks the control channel as "invalid". As this test case times out for the
+# data connection it could still use the control channel.
 <protocol>
 USER anonymous
 PASS ftp@example.com
@@ -44,10 +50,9 @@ EPRT |1|
 TYPE I
 SIZE 1208
 RETR 1208
-QUIT
 </protocol>
 <errorcode>
-19
+28
 </errorcode>
 </verify>
 </testcase>
diff --git a/tests/data/test1209 b/tests/data/test1209
index a106f09cfd..7086829f18 100644
--- a/tests/data/test1209
+++ b/tests/data/test1209
@@ -36,6 +36,12 @@ FTP PORT download, no data conn and no positive preliminary reply
 <strippart>
 s/^EPRT \|1\|(.*)/EPRT \|1\|/
 </strippart>
+
+# The protocol part does not include QUIT simply because the error is
+# CURLE_OPERATION_TIMEDOUT (28) which is a generic timeout error without
+# specificly saying for which connection it concerns, and for timeouts libcurl
+# marks the control channel as "invalid". As this test case times out for the
+# data connection it could still use the control channel.
 <protocol>
 USER anonymous
 PASS ftp@example.com
@@ -44,10 +50,9 @@ EPRT |1|
 TYPE I
 SIZE 1209
 RETR 1209
-QUIT
 </protocol>
 <errorcode>
-19
+28
 </errorcode>
 </verify>
 </testcase>