diff --git a/lib/ansible/modules/network/ios/ios_facts.py b/lib/ansible/modules/network/ios/ios_facts.py
index a6016453809..c5aebd5fec6 100644
--- a/lib/ansible/modules/network/ios/ios_facts.py
+++ b/lib/ansible/modules/network/ios/ios_facts.py
@@ -204,11 +204,11 @@ class Default(FactsBase):
             return match.group(1)
 
     def parse_stacks(self, data):
-        match = re.findall(r'^Model number\s+: (\S+)', data, re.M)
+        match = re.findall(r'^Model [Nn]umber\s+: (\S+)', data, re.M)
         if match:
             self.facts['stacked_models'] = match
 
-        match = re.findall(r'^System serial number\s+: (\S+)', data, re.M)
+        match = re.findall(r'^System [Ss]erial [Nn]umber\s+: (\S+)', data, re.M)
         if match:
             self.facts['stacked_serialnums'] = match
 
@@ -228,12 +228,15 @@ class Hardware(FactsBase):
 
         data = self.responses[1]
         if data:
-            processor_line = [l for l in data.splitlines()
-                              if 'Processor' in l].pop()
-            match = re.findall(r'\s(\d+)\s', processor_line)
-            if match:
-                self.facts['memtotal_mb'] = int(match[0]) / 1024
-                self.facts['memfree_mb'] = int(match[3]) / 1024
+            if 'Invalid input detected' in data:
+                warnings.append('Unable to gather memory statistics')
+            else:
+                processor_line = [l for l in data.splitlines()
+                                  if 'Processor' in l].pop()
+                match = re.findall(r'\s(\d+)\s', processor_line)
+                if match:
+                    self.facts['memtotal_mb'] = int(match[0]) / 1024
+                    self.facts['memfree_mb'] = int(match[3]) / 1024
 
     def parse_filesystems(self, data):
         return re.findall(r'^Directory of (\S+)/', data, re.M)
@@ -446,6 +449,9 @@ FACT_SUBSETS = dict(
 
 VALID_SUBSETS = frozenset(FACT_SUBSETS.keys())
 
+global warnings
+warnings = list()
+
 
 def main():
     """main entry point for module execution
@@ -508,7 +514,6 @@ def main():
         key = 'ansible_net_%s' % key
         ansible_facts[key] = value
 
-    warnings = list()
     check_args(module, warnings)
 
     module.exit_json(ansible_facts=ansible_facts, warnings=warnings)
diff --git a/lib/ansible/plugins/terminal/ios.py b/lib/ansible/plugins/terminal/ios.py
index 61927bda906..4a43c72b02c 100644
--- a/lib/ansible/plugins/terminal/ios.py
+++ b/lib/ansible/plugins/terminal/ios.py
@@ -64,7 +64,7 @@ class TerminalModule(TerminalBase):
         if passwd:
             # Note: python-3.5 cannot combine u"" and r"" together.  Thus make
             # an r string and use to_text to ensure it's text on both py2 and py3.
-            cmd[u'prompt'] = to_text(r"[\r\n]password: ?$", errors='surrogate_or_strict')
+            cmd[u'prompt'] = to_text(r"[\r\n](?:Local_)?[Pp]assword: ?$", errors='surrogate_or_strict')
             cmd[u'answer'] = passwd
             cmd[u'prompt_retry_check'] = True
         try: