Web interface slowing to change profile and attributes

RouterOS The User Manager
1

We are using UM 4, on a ROS 5.25 x86, as radius server to authenticate PPPoE sessions.
Normally, there are about 900+ sessions open (peak is at 1100).

For customers who “forget” payments, instead to block them, we change their profile which simply tells to add its IP address into an address-list, used by some firewall rules to redirect to a specific web page.

We see a longer and longer time (even 3-4 minutes) for UM to change profile for a user.
Even simply changing the username of a user takes a long time; instead changing it from command line is really fast.

A reboot, temporarily, solves this.

Does anybody have this issue?

2

We think to have found the problem: to restart pppoe connections, my colleague uses the tool inside the UM to close the active session (list sessions, find the username, select, edit, close).
Instead, in the last two weeks, we used my “old way”: login to the local pppoe server and do a “/ppp active remove”.

From today we restart to kill connection from the web interface and see what happen.