Demo data local instance on v11 - 401 unauthorized access to Guest login?

I am debugging a case of Guest access ‘Incorrect password’ -

This demo data instance I believe/assume created this way in v10 then now updated and migrated to v11

frappe@ubuntu:~/frappe-bench$ bench version
/home/frappe/frappe-bench/env/local/lib/python2.7/site-packages/requests/init.py:80: RequestsDependencyWarning: urllib3 (1.23) or chardet (3.0.4) doesn’t match a supported version!
RequestsDependencyWarning)
erpnext 11.1.6
frappe 11.1.6

This traceback is on the client:

Failed to load resource: the server responded with a status of 401 (UNAUTHORIZED)
website.js:162 Traceback (most recent call last):
File “/home/frappe/frappe-bench/apps/frappe/frappe/app.py”, line 58, in application
init_request(request)
File “/home/frappe/frappe-bench/apps/frappe/frappe/app.py”, line 120, in init_request
frappe.local.http_request = frappe.auth.HTTPRequest()
File “/home/frappe/frappe-bench/apps/frappe/frappe/auth.py”, line 51, in init
frappe.local.login_manager = LoginManager()
File “/home/frappe/frappe-bench/apps/frappe/frappe/auth.py”, line 105, in init
if self.login()==False: return
File “/home/frappe/frappe-bench/apps/frappe/frappe/auth.py”, line 126, in login
self.authenticate(user=user, pwd=pwd)
File “/home/frappe/frappe-bench/apps/frappe/frappe/auth.py”, line 210, in authenticate
self.user = self.check_password(user, pwd)
File “/home/frappe/frappe-bench/apps/frappe/frappe/auth.py”, line 229, in check_password
self.fail(‘Incorrect password’, user=user)
File “/home/frappe/frappe-bench/apps/frappe/frappe/auth.py”, line 237, in fail
raise frappe.AuthenticationError
AuthenticationError

process_response @ website.js:162

This appears in /var/log/nginx/access.log

192.168.0.221 - - [05/Jun/2019:00:02:45 +0000] “GET /api/method/frappe.realtime.get_user_info?sid=Guest HTTP/1.1” 200 28 “-” “node-superagent/3.8.2” “-”
192.168.0.104 - - [05/Jun/2019:00:02:50 +0000] “POST / HTTP/1.1” 401 3160 “http://192.168.0.221/” “Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36” “-”
192.168.0.104 - - [05/Jun/2019:00:17:56 +0000] “GET /assets/js/erpnext-web.min.js.map HTTP/1.1” 200 9269 “-” “Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36” “-”
192.168.0.104 - - [05/Jun/2019:00:17:56 +0000] “GET /assets/js/frappe-web.min.js.map HTTP/1.1” 200 499037 “-” “Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36” “-”
192.168.0.104 - - [05/Jun/2019:00:17:56 +0000] “GET /website_theme.css HTTP/1.1” 200 0 “http://192.168.0.221/” “Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36” “-”

ok login_as_guest seems broken

But usual user + password login works, for example enter url http://192.168.0.221/desk or http://192.168.0.221/login