diff --git a/README.md b/README.md
index c311d2a8b..0b73f40d1 100644
--- a/README.md
+++ b/README.md
@@ -467,7 +467,8 @@ In case the test tool doesn't appear to be working, check the following:
 1. Check that no other process is using the network card (e.g. kill your network manager).
 
 2. If everything worked previously, try unplugging your Wi-Fi dongle, restart your computer or virtual
-   machine, and then try again.
+   machine, and then try again. Also try to disable hardware encryption using the `disable-hwcrypto.sh`
+   script (reboot your computer after executing this script).
 
 3. Assure the device you are testing doesn't enter a sleep state (causing it to miss injected frames).
    I recommend running the test tool in [mixed mode](#id-mixed-mode) since this better handles clients
@@ -940,6 +941,15 @@ I tested the Intel AX200 and found that it is _not_ compatible with the test too
 after injecting a frame with the More Fragments flag set. If an Intel developer is reading this, please
 update the firmware and make it possible to inject fragmented frames.
 
+### RT5572-based chips
+
+I tested this chipset using the general [CSL USB 2.0 WLAN Adapter 300Mbit adapter](http://www.amazon.de/dp/B00LLIOT34?tag=modwiffir-20).
+After disabling hardware decryption by executing the `disable-hwcrypto.sh` script I was able to perform
+a basic ping test (`ping`). A fragmented ping test (`ping I,E,E`) was very unreliable but sometimes worked.
+
+The current conclusion is that RT5572 chips _might_ work with the test tool after disabling hardware
+encryption. But extra experiments are needed to confirm this (feedback is welcome).
+
 <a id="id-hwsim-details"></a>
 ## 9.9. Hwsim mode details
 
diff --git a/research/disable-hwcrypto.sh b/research/disable-hwcrypto.sh
new file mode 100755
index 000000000..4e9b63fd2
--- /dev/null
+++ b/research/disable-hwcrypto.sh
@@ -0,0 +1,46 @@
+#!/bin/bash
+
+# Copyright (c) 2017, Mathy Vanhoef <Mathy.Vanhoef@cs.kuleuven.be>
+#
+# This code may be distributed under the terms of the BSD license.
+# See README for more details.
+
+set -e
+
+NOHWCRYPT="ath5k ath9k ath9k_htc rt2800usb carl9170 b43 p54common rt2500usb rt2800pci rt73usb"
+SWCRYPTO="iwlwifi iwl3945 iwl4965"
+HWCRYPTO="ipw2200"
+MODFILE="/etc/modprobe.d/nohwcrypt.conf"
+
+# 0. Check if we have root privileges
+if [[ $EUID -ne 0 ]]; then
+   echo "This script must be run as root"
+   exit 1
+fi
+
+
+# 1. Create nohwcrypt.conf options file
+
+rm $MODFILE 2> /dev/null || true
+
+for MODULE in $NOHWCRYPT
+do echo "options $MODULE nohwcrypt=1" >> $MODFILE; done
+
+for MODULE in $SWCRYPTO
+do echo "options $MODULE swcrypto=1" >> $MODFILE; done
+
+for MODULE in $HWCRYPTO
+do echo "options $MODULE hwcrypto=0" >> $MODFILE; done
+
+
+# 2. Remove loaded modules so they'll reload parameters. Note that modules that
+#    are in use by others won't be removed (e.g. iwlwifi won't be removed).
+
+for MODULE in $NOHWCRYPT $SWCRYPTO $HWCRYPTO
+do rmmod $MODULE 2> /dev/null || true; done
+
+
+# 3. Done. To be sure parameters are reloaded, reboot computer.
+
+echo "Created config file $MODFILE to disable hardware decryption."
+echo "Reboot your computer to apply the changes."