PPPoE sessions are less than connected stations

RouterOS General
1

Hi there,

I’m using several NetMetal 5 and NetMetal 5 as PPPoE server. My customers connect via wlan1 and generate a PPPoE connection on the AP. I’m using external radius. I’m using only RouterOS 6.3x.x stable versions.
I’ve noticed that many times on different locations the number of stations is less than PPPoE sessions. Example: 40 stations and 38 PPPoE active sessions.

Could it be useful to log PPPoE topic?