MOPZ - "create new maintenance transaction" pops up web browser

Hello,

my Solution Manager is on SAP_BASIS 701 PL 0005, ST 400 PL 0022.

When trying to access an existing or creating a new maintenance

transaction then the web browser pops up.

http://fqdn:8000/sap/public/myssocntl?sap-client=100

"The page cannot be displayed"

There are several firewalls between me and the Solution Manager

and only few ports like 3299/tcp are open.

Is it possible to undo this stupid change that the MOPZ wants to

open a web browser? Is it possible to view the HTML pages

in the Sapuig as it was in the past?

Regards,

Mark