Did you ever find a solution for this problem with IPv6 support enabled? I have the same problem: 2018-10-23 14:30:26,401 ERROR pid=19302 tid=MainThread file=base_modinput.py:log_error:308 | Traceback (most recent call last): File "/opt/splunk/etc/apps/TA-MS-AAD/bin/ta_ms_aad/modinput_wrapper/base_modinput.py", line 113, in stream_events self.parse_input_args(input_definition) File "/opt/splunk/etc/apps/TA-MS-AAD/bin/ta_ms_aad/modinput_wrapper/base_modinput.py", line 153, in parse_input_args self._parse_input_args_from_global_config(inputs) File "/opt/splunk/etc/apps/TA-MS-AAD/bin/ta_ms_aad/modinput_wrapper/base_modinput.py", line 171, in _parse_input_args_from_global_config global_config = GlobalConfig(uri, session_key, global_schema) File "/opt/splunk/etc/apps/TA-MS-AAD/bin/ta_ms_aad/splunktaucclib/global_config/__init__.py", line 51, in __init__ port=splunkd_info.port, File "/opt/splunk/etc/apps/TA-MS-AAD/bin/ta_ms_aad/solnlib/net_utils.py", line 129, in wrapper 'Illegal argument: {}={}'.format(arg, value)) ValueError: Illegal argument: host=::1 ... View more

I can confirm this problem with version 1.1.1 of this App. The button is grayed out when all the check marks are green. This is with Splunk 6.2.1 on Linux. ... View more