diff --git a/README.md b/README.md
index 51668fc5..c0790bb7 100644
--- a/README.md
+++ b/README.md
@@ -71,6 +71,7 @@ The default configuration file comes with a sample configuration, making it easy
     use_ssl = False                 # enables connection via API-SSL servis
     no_ssl_certificate = False      # enables API_SSL connect without router SSL certificate
     ssl_certificate_verify = False  # turns SSL certificate verification on / off   
+    plaintext_login = True          # for legacy RouterOS versions below 6.43 use False
 
     installed_packages = True       # Installed packages
     dhcp = True                     # DHCP general metrics
diff --git a/mktxp/cli/config/config.py b/mktxp/cli/config/config.py
index 98451d78..8fd88e4d 100755
--- a/mktxp/cli/config/config.py
+++ b/mktxp/cli/config/config.py
@@ -64,6 +64,7 @@ class MKTXPConfigKeys:
     SSL_KEY = 'use_ssl'
     NO_SSL_CERTIFICATE = 'no_ssl_certificate'
     SSL_CERTIFICATE_VERIFY = 'ssl_certificate_verify'
+    PLAINTEXT_LOGIN_KEY = 'plaintext_login'
 
     FE_PACKAGE_KEY = 'installed_packages'
     FE_DHCP_KEY = 'dhcp'
@@ -145,8 +146,8 @@ class MKTXPConfigKeys:
                        SSL_CERTIFICATE_VERIFY, FE_IPV6_FIREWALL_KEY, FE_IPV6_NEIGHBOR_KEY, FE_CONNECTION_STATS_KEY, FE_BGP_KEY}
 
     # Feature keys enabled by default
-    BOOLEAN_KEYS_YES = {FE_DHCP_KEY, FE_PACKAGE_KEY, FE_DHCP_LEASE_KEY, FE_DHCP_POOL_KEY, FE_IP_CONNECTIONS_KEY, FE_INTERFACE_KEY, FE_FIREWALL_KEY,
-                        FE_MONITOR_KEY, FE_ROUTE_KEY, MKTXP_USE_COMMENTS_OVER_NAMES,
+    BOOLEAN_KEYS_YES = {PLAINTEXT_LOGIN_KEY, FE_DHCP_KEY, FE_PACKAGE_KEY, FE_DHCP_LEASE_KEY, FE_DHCP_POOL_KEY, FE_IP_CONNECTIONS_KEY, FE_INTERFACE_KEY, 
+                        FE_FIREWALL_KEY, FE_MONITOR_KEY, FE_ROUTE_KEY, MKTXP_USE_COMMENTS_OVER_NAMES,
                         FE_WIRELESS_KEY, FE_WIRELESS_CLIENTS_KEY, FE_CAPSMAN_KEY, FE_CAPSMAN_CLIENTS_KEY, FE_POE_KEY,
                         FE_NETWATCH_KEY, FE_PUBLIC_IP_KEY, FE_USER_KEY, FE_QUEUE_KEY}
 
@@ -167,7 +168,7 @@ class MKTXPConfigKeys:
 class ConfigEntry:
     MKTXPConfigEntry = namedtuple('MKTXPConfigEntry', [MKTXPConfigKeys.ENABLED_KEY, MKTXPConfigKeys.HOST_KEY, MKTXPConfigKeys.PORT_KEY,
                                                        MKTXPConfigKeys.USER_KEY, MKTXPConfigKeys.PASSWD_KEY,
-                                                       MKTXPConfigKeys.SSL_KEY, MKTXPConfigKeys.NO_SSL_CERTIFICATE, MKTXPConfigKeys.SSL_CERTIFICATE_VERIFY,
+                                                       MKTXPConfigKeys.SSL_KEY, MKTXPConfigKeys.NO_SSL_CERTIFICATE, MKTXPConfigKeys.SSL_CERTIFICATE_VERIFY, MKTXPConfigKeys.PLAINTEXT_LOGIN_KEY,
                                                        MKTXPConfigKeys.FE_DHCP_KEY, MKTXPConfigKeys.FE_PACKAGE_KEY, MKTXPConfigKeys.FE_DHCP_LEASE_KEY, MKTXPConfigKeys.FE_DHCP_POOL_KEY, MKTXPConfigKeys.FE_INTERFACE_KEY,
                                                        MKTXPConfigKeys.FE_FIREWALL_KEY, MKTXPConfigKeys.FE_MONITOR_KEY, MKTXPConfigKeys.FE_ROUTE_KEY, MKTXPConfigKeys.FE_WIRELESS_KEY, MKTXPConfigKeys.FE_WIRELESS_CLIENTS_KEY,
                                                        MKTXPConfigKeys.FE_IP_CONNECTIONS_KEY, MKTXPConfigKeys.FE_CONNECTION_STATS_KEY, MKTXPConfigKeys.FE_CAPSMAN_KEY, MKTXPConfigKeys.FE_CAPSMAN_CLIENTS_KEY, MKTXPConfigKeys.FE_POE_KEY, 
diff --git a/mktxp/cli/config/mktxp.conf b/mktxp/cli/config/mktxp.conf
index f27984eb..841a1634 100644
--- a/mktxp/cli/config/mktxp.conf
+++ b/mktxp/cli/config/mktxp.conf
@@ -28,6 +28,7 @@
     use_ssl = False                 # enables connection via API-SSL servis
     no_ssl_certificate = False      # enables API_SSL connect without router SSL certificate
     ssl_certificate_verify = False  # turns SSL certificate verification on / off   
+    plaintext_login = True          # for legacy RouterOS versions below 6.43 use False
 
     installed_packages = True       # Installed packages
     dhcp = True                     # DHCP general metrics
diff --git a/mktxp/flow/router_connection.py b/mktxp/flow/router_connection.py
index 5d63ae3d..4706eb4b 100644
--- a/mktxp/flow/router_connection.py
+++ b/mktxp/flow/router_connection.py
@@ -78,12 +78,8 @@ def connect(self):
             return
         try:
             print(f'Connecting to router {self.router_name}@{self.config_entry.hostname}')
-            try:
-                self.api = self.connection.get_api()
-            except:                
-                self.connection.plaintext_login = False
-                self.api = self.connection.get_api()
-
+            self.connection.plaintext_login = self.config_entry.plaintext_login
+            self.api = self.connection.get_api()
             self._set_connect_state(success = True, connect_time = connect_time)
         except (socket.error, socket.timeout, Exception) as exc:
             self._set_connect_state(success = False, connect_time = connect_time, exc = exc)