Ets connection closed by remote device

[gjniewenhuijse]

HW: LM5 Lite + Ext (i.MX6)
SW: 20240426
ETS: 6.4.0

When programming a device with ETS i received an error: connection closed by remote device 2.x.x (my new buttons).

How to solve this?

- It is possible to program the individual address
- It is not possible to program the application, also not the short option

[Daniel]

What exactly is this new button you have? Is it maybe data secure?

[gjniewenhuijse]

Berker S8014xxx0, not secure

[Daniel]

I just tried ETS 6.4 on my instalation and it worked all fine.
Is LM KNX address from the same line you trying to download?

[gjniewenhuijse]

Yes same line, i can program the individual address en 99/100 times the app download doesn't work.

[Daniel]

What about LM itself, what is the load and how is the bus traffic?

[gjniewenhuijse]

cpu/io 0.23 0.23 0.12, memory 9%, knx/tp op
very low bus traffic.

[Daniel]

Try rebooting LM, did you try any other device not just this PB?

[gjniewenhuijse]

I have rebooted the LM multiple times and tested other settings, but without success.

- I tested a USB programming interface and then it works right away.
- I cannot program other KNX devices either.
- I also have another LM located in a different part of the building, with its own KNX installation. It doesn't work there either. Both installations are behind a Mikrotik router. Could that have something to do with it?

[Daniel]

Are you not connected to the same lan what LM is only via the microtic router?

[gjniewenhuijse]

Lan A:
Microtik switch A
HW: LM5 Lite + Ext (i.MX6)
SW: 20240426

Lan B:
Microtik switch B
HW: LM5 Lite + Ext (i.MX6)
SW: 20240426

Lan A + B switches connected on the same Mikrotik Router
Lan A + B LM's connected over multicast IP

[Daniel]

Are you connected to switch A when trying to download to LM A?

[Daniel]

Did you try both tunnel and routing for programming?

[gjniewenhuijse]

Problem found, but not solved

I thinks its Mikrotik related, because when i disconnect 1 extra mikrotik css switch in my house the problems are gone.

[Daniel]

Ok at last we know its not LM. Keep us updated if you figure out what was the problem with Mikrotik.