i am facing this problem from some time plz help me i cold not understand what problem it is .....

there is a same mac address device on your connection... check disconnected pppoe_client device mac address.

if you want to use as like this you can disable this option go /interface pppoe-server server and set one-session-per-host=no

there is a same mac address device on your connection... check disconnected pppoe_client device mac address.

if you want to use as like this you can disable this option go /interface pppoe-server server and set one-session-per-host=no

thnx bro

I also facing the same issue
I know I can resolve this issue just setting one session per host = no

But in log it says "session already active closing previous one" then why it not close previous session and start new session automatically

I using usermanager to authenticate and accounting for PPP users
Whenever net is down and up again in few minutes then user not authenticating due to session already active in usermanager
So every time when net is down and up again so I have to manually clear session from usermanager which user not authenticating

The problem with doing that is that it causes "fighting" between users when it happens that two users have the same MAC address.
This could happen when devices are "cloned" (backup made and then restored on another device).
Such practice could go on undetected for some time when you just allow it.

Hi people,

With Mikrotik 6.44.6 the problem is the same.
@Normis, I ask if Mikrotik solve this problem.

Best Regards

Fabrix

I an having this problem. We are not cloning devices. When we change the IP of one device, some other device begins the same behaviour.

Actually two or three CPE's are acting this way...

i am also facing same issue can any one suggest how to solve, its disconnecting all 800 + user in 1036 ccr router , attached is screen shot

There are some modems and ONU that have more than 1 configuring virtual interface on WAN, be sure not is this! Faced this in many of small ISP here in my county!

i am also facing same issue can any one suggest how to solve, its disconnecting all 800 + user in 1036 ccr router , attached is screen shot

any body can help to shortout this issue i also have same issue in mikrotik router 1036

Hi, For Me it was Switch Issue -Ethernet ports where problems. when I changed with SFP - fiber all connection with OLT its worked so far no problem

i am also facing same issue can any one suggest how to solve, its disconnecting all 800 + user in 1036 ccr router , attached is screen shot

any body can help to shortout this issue i also have same issue in mikrotik router 1036

Same Problem No body help us

I facing "pppoe connection was already active closing previous one" issue can any one suggest how to solve, its disconnecting all 750 + user in CCR1036-8G-2S+ Router
attached is screen shot

i am also facing same issue can any one suggest how to solve, its disconnecting all 800 + user in 1036 ccr router , attached is screen shot

Same Problem Please help

I'm facing the same problem.
I have approx 300 connections to a PPPoE server with over 500 sessions. Did anyone get this fixed?

Thanks

+1 same problem...

has anyone managed to solve this problem?

I have the same problem, but only when i changed router 4011 with 1036. I have upgrade and downgrade the 1036 router and is the same. I have created many pppoe-servers and is the same. Now i have put away the 1036 and i am using 4011.

Mikrotik team is sleeping i think.

why is this marked solved? I too have the same problem with CCR1036-8G-2S+ , running the latest long-term version 6.47.9.
Many such requests are causing mikrotik to hang.

Try returning to 6.46.8. Perhaps it will help.

in my CCR1036 I still have the same problem when it drops more than 500 pppes cpu of a core is at 100%, before it was not like that it was after upgrading to version 6.47 long term

Do you do NAT on the same box and do you have a "masquerade" rule for that? If so, replace it by a suitable "src-nat" rule.

Do you do NAT on the same box and do you have a "masquerade" rule for that? If so, replace it by a suitable "src-nat" rule.

I took all the "masquerade" and put netmap but the problem still remains, when they disconnect more than 500 pppoes it seems that the cpu processing increases, I forgive access to CCR1036 and when these 500 pppoe are connecting again at the same time the cpu increases and the CCR1036 is unavailable until all pppoes go up, I removed all the "masquerade" rules, but the problem remains.

[*]Hello all
I have same issue when i kick 10 pppoe users on my 1036 8G2s+ it drops 200-250 pppoe users out of 450 active. This should be the mikrotik bug i do everything that ı know and ı read about but no solution. I have src nat and netmap on it

same router 1036 8G 2+ having this issue. Anybody found solution?

I still had the problem when disconnecting more than 200 pppoe, forgive access via winbox to CCR1036, I've checked the NAT does not have any masquerade rule, I have 2 CCR1036 and it's the same someone already went through this, whenever more than 200 connections drop pppoe I get no access and CCR1036 traffic drops

Hi
How can I send winbox's file from Mikrotik to windows without download it ?
Is it possible?

I have created a new post with this because it is marked as SOLVED, and it isn't like that.

viewtopic.php?t=180611

The problem is that setting up new PPPoE connections or tearing down existing PPPoE connections requires much more CPU attention than merely forwarding traffic.
So when you have 2000 connections the CCR can happily handle them, but when 200 are closed or newly opened at once the CPU is completely overwhelmed.
At some point so badly that it also cannot maintain the existing 1800 connections and an avalanche occurs in which all connections are broken and there is no CPU available to handle new connections either, and you have to hope that the customers slowly make their connection again instead of all at once.

This scenario is not unique, it can happen everywhere in IT systems, e.g. also with websites that get too much traffic.

@pe1chi. thanks so much for your reply, but I just moved my answer to a new Post because this is marked as Solved.
Here is the URL: viewtopic.php?t=180611

The same thing happens on the mikrotik 2216. There is no other active connection. this is a bug mikrotik V 7.14.3