Not sure I understand the "why" or "how" it was changed but resetting my stack in caliper_admin solved my problem.
Friday my environment seemed to be working fine. This morning, I ran "q2 update_installed" to update since I suspected a reboot would have changed ip address. I get the following warning and errors:
2022-11-07T10:17:56.835 q2_sdk.general WARNING Response URL: https://stack.q2developer.com/sdk/vacu/hq/Q2API.ashx/ExecuteStoredProcedure
2022-11-07T10:17:56.835 q2_sdk.general WARNING Response Headers: {'Date': 'Mon, 07 Nov 2022 15:17:56 GMT', 'Content-Type': 'text/plain; charset=utf-8', 'Content-Length': '0', 'Connection': 'keep-alive'}
2022-11-07T10:17:56.835 q2_sdk.general WARNING Response Body: b''
2022-11-07T10:17:56.836 q2_sdk.general ERROR Unknown error from HQ_URL: https://stack.q2developer.com/sdk/vacu/hq/Q2API.ashx/ExecuteStoredProcedure
"Q2 run" gets a very similar set of messages and the TotalAccess logon throws an unknown error.
I'm new to Q2 development and not quite sure how to proceed.