I do not run all miners under one system, you do not understand correctly.
Each miner is a separate rig from a separate motherboard and CPU. Here is what it is:
number 1 rig - 4 video cards 7950,
number 2 and number 3 rig on 3x7950. All use lolminer 0.8.7
line lolMiner.exe --coin BEAM-II --pool beamv2.eu-new.nicehash.com --port 3378 --tls 0 --user ***.

4 rig - consists of 1070 and it uses the Gminer.
line; miner.exe --algo beamhash --server beamv2.eu-new.nicehash.com --port 3378 --user ****.

There is rig number 5, on the video card 470 - there Claymore gives ETH.

 All 5 rigs are all separate systems. This is not one computer.
So sometimes all the miners are closed at the same time, but only for lolminer. Not only the miner stops, but the miner’s window closes as well. This is not when we disconnect the rig from the Internet - then the miner window does not close and the miner writes "reconnect 3 seconds ..".
This happens for lolminer at one time. I don’t know the reason - maybe this is a loss of connection with the pool - but why does the lolminer not wait for the connection but close? On all 3 systems? So far I am solving the problem through the bat file:
@ECHO
COLOR 57
: loop
START NEW_BEAM_NICEHASH
TIMEOUT / t 2400
TASKKILL / f / im lolMiner.exe
Goto loop

For Gminer, who also solves Beam through Nice, this never happens. Why does the lolminer decide to close and how to solve this problem?
I clarify - the lolminer can work and for a long time is normal, but something happens on the pool and the lolminer closes without the ability to continue to work.