Hello Alejandro ,
First, ensure the network is good and low latency. If using ldap provider, ensure the ldap server is good, and the network between ldap and gateway is good.
2nd, check the roles of current user, Internal Identity Provider -> search the user, open properties -> Roles tab
If you can see a large number of roles for this user, it may be the reason of the connection broken between the policy manager and gateway.
A quick work around is to only set one role for this user (administrator), and configure the cluster wide properties to disable auto role assignment,
rbac.autoRole.managePolicy.autoAssign=false
rbac.autoRole.manageProvider.autoAssign=false
rbac.autoRole.manageService.autoAssign=false
If you still want the permission control, you may need to use security zone, assign permission of entities to the zone, and add only 2 roles to the user or group,
View X Zone
Manage X Zone
Hope this can help.
Regards,
Mark