Notebook not accepting password (WSL debian)

6.5.4 accepts a new password via login with password/token but will not allow login with new password.

When attempting password login server returns

[I 23:36:54.490 NotebookApp] 302 POST /login?next=%2F (127.0.0.1) 25.850000ms
[I 23:36:54.494 NotebookApp] 302 GET / (127.0.0.1) 0.340000ms
[W 23:37:06.579 NotebookApp] 401 POST /login?next=%2F (127.0.0.1) 1.070000ms referer=http://127.0.0.1:8888/login
[W 23:37:07.485 NotebookApp] 401 POST /login?next=%2F (127.0.0.1) 1.140000ms referer=http://127.0.0.1:8888/login?next=%2

Many thanks in advance

Joe