diff --git a/tests/auto/network/socket/qsocks5socketengine/BLACKLIST b/tests/auto/network/socket/qsocks5socketengine/BLACKLIST
index 6b3a39ab5e9..51ed317686c 100644
--- a/tests/auto/network/socket/qsocks5socketengine/BLACKLIST
+++ b/tests/auto/network/socket/qsocks5socketengine/BLACKLIST
@@ -8,3 +8,5 @@ qnx ci
 [passwordAuth2]
 ubuntu
 
+[tcpSocketBlockingTest]
+* # QTBUG-133548
diff --git a/tests/auto/network/socket/qtcpsocket/BLACKLIST b/tests/auto/network/socket/qtcpsocket/BLACKLIST
index 6261c85a099..a279b894ea8 100644
--- a/tests/auto/network/socket/qtcpsocket/BLACKLIST
+++ b/tests/auto/network/socket/qtcpsocket/BLACKLIST
@@ -75,3 +75,24 @@ macos arm
 qnx ci
 [bindThenResolveHost:WithoutProxy SSL:first-fail]
 qnx ci
+
+[blockingIMAP]
+* # QTBUG-133548
+[partialRead]
+* # QTBUG-133548
+[readAllAfterClose]
+* # QTBUG-133548
+[connectDisconnectConnectDisconnect]
+* # QTBUG-133548
+[readLine]
+* # QTBUG-133548
+[readLineString]
+* # QTBUG-133548
+[readLineChunks]
+* # QTBUG-133548
+[readyReadSignalsAfterWaitForReadyRead]
+* # QTBUG-133548
+[readChunks]
+* # QTBUG-133548
+[unget]
+* # QTBUG-133548
diff --git a/tests/auto/network/ssl/qsslsocket/BLACKLIST b/tests/auto/network/ssl/qsslsocket/BLACKLIST
index b9905166766..9f6eb7e2b3c 100644
--- a/tests/auto/network/ssl/qsslsocket/BLACKLIST
+++ b/tests/auto/network/ssl/qsslsocket/BLACKLIST
@@ -4,3 +4,14 @@ windows
 macos
 [connectToHostEncryptedWithVerificationPeerName]
 macos
+
+[simpleConnect]
+* # QTBUG-133548
+[simpleConnectWithIgnore]
+* # QTBUG-133548
+[sslErrors:qt-test-server]
+* # QTBUG-133548
+[waitForConnectedEncryptedReadyRead]
+* # QTBUG-133548
+[resume]
+* # QTBUG-133548
diff --git a/tests/auto/other/networkselftest/BLACKLIST b/tests/auto/other/networkselftest/BLACKLIST
index 9865f4def53..04e8c5ae67d 100644
--- a/tests/auto/other/networkselftest/BLACKLIST
+++ b/tests/auto/other/networkselftest/BLACKLIST
@@ -3,3 +3,8 @@
 windows-10
 [smbServer]
 opensuse-leap
+
+[imapServer]
+* # QTBUG-133548
+[remotePortsOpen:imap]
+* # QTBUG-133548