Switching from Excavator to Excavator failed
First, Excavator was mining NeoScrypt, than a more profitable algo came; MPM stopped Excavator, and should started Excavator again with a different algo, but this never happened, therefore MPM kicked Excavator for the 3rd (4th?) time, and never tried to run it again during this intervals. And it was not mining for at least 15 minutes (I have 5 minutes interval).

Possible solutions:
- if failed to connect to a miner, check if it's running; if no, than run it again (if had to run 3 times, than it's a failed miner: watchdog feature extended)
- changing algo in Excavator can be seamless (without stopping and starting Excavator)

```
2018-03-25 22:07:35 INFO: Starting miner (ExcavatorNvidia1): 'C:\Users\Attila\Downloads\MultiPoolMinerV2.7.2.7\Bin\Excavator\excavator.exe -p 23456 -c AHashPool_NeoScrypt_17nWUDPvTfMtCwbPQs98NaKd2J559paNo1_1_Nvidia.json -na'
2018-03-25 22:07:36 INFO: Start waiting before next run.
2018-03-25 22:12:26 INFO: Finish waiting before next run.
2018-03-25 22:12:26 INFO: Saving hash rates.
2018-03-25 22:12:27 INFO: Starting next run.
2018-03-25 22:12:28 INFO: Updating exchange rates from Coinbase.
2018-03-25 22:12:28 INFO: Loading saved statistics.
2018-03-25 22:12:29 INFO: Loading pool information.
2018-03-25 22:12:33 INFO: Selecting best pool for each algorithm.
2018-03-25 22:12:33 INFO: Getting miner information.
2018-03-25 22:12:37 INFO: Calculating profit for each miner.
2018-03-25 22:12:39 INFO: Start waiting before next run.
2018-03-25 22:17:29 INFO: Finish waiting before next run.
2018-03-25 22:17:29 INFO: Saving hash rates.
2018-03-25 22:17:30 INFO: Starting next run.
2018-03-25 22:17:31 INFO: Updating exchange rates from Coinbase.
2018-03-25 22:17:31 INFO: Loading saved statistics.
2018-03-25 22:17:32 INFO: Loading pool information.
2018-03-25 22:17:36 INFO: Selecting best pool for each algorithm.
2018-03-25 22:17:36 INFO: Getting miner information.
2018-03-25 22:17:40 INFO: Calculating profit for each miner.
2018-03-25 22:17:42 INFO: Stopping miner (ExcavatorNvidia1).
2018-03-25 22:17:42 INFO: Starting miner (ExcavatorNvidia2): 'C:\Users\Attila\Downloads\MultiPoolMinerV2.7.2.7\Bin\Excavator\excavator.exe -p 23456 -c AHashPool_Lyra2RE2_17nWUDPvTfMtCwbPQs98NaKd2J559paNo1_2_Nvidia.json -na'
2018-03-25 22:17:43 INFO: Start waiting before next run.
2018-03-25 22:22:33 INFO: Finish waiting before next run.
2018-03-25 22:22:33 INFO: Saving hash rates.
2018-03-25 22:22:35 ERROR: Failed to connect to miner (ExcavatorNvidia2).
2018-03-25 22:22:35 INFO: Starting next run.
2018-03-25 22:22:35 INFO: Updating exchange rates from Coinbase.
2018-03-25 22:22:35 INFO: Loading saved statistics.
2018-03-25 22:22:36 INFO: Loading pool information.
2018-03-25 22:22:40 INFO: Selecting best pool for each algorithm.
2018-03-25 22:22:40 INFO: Getting miner information.
2018-03-25 22:22:44 INFO: Calculating profit for each miner.
2018-03-25 22:22:46 INFO: Start waiting before next run.
2018-03-25 22:27:36 INFO: Finish waiting before next run.
2018-03-25 22:27:36 INFO: Saving hash rates.
2018-03-25 22:27:38 ERROR: Failed to connect to miner (ExcavatorNvidia2).
2018-03-25 22:27:38 INFO: Starting next run.
2018-03-25 22:27:38 INFO: Updating exchange rates from Coinbase.
2018-03-25 22:27:38 INFO: Loading saved statistics.
2018-03-25 22:27:39 INFO: Loading pool information.
2018-03-25 22:27:43 INFO: Selecting best pool for each algorithm.
2018-03-25 22:27:43 INFO: Getting miner information.
2018-03-25 22:27:46 INFO: Calculating profit for each miner.
2018-03-25 22:27:48 INFO: Stopping miner (ExcavatorNvidia2).
2018-03-25 22:27:48 INFO: Starting miner (CcminerSp): 'C:\Users\Attila\Downloads\MultiPoolMinerV2.7.2.7\Bin\NVIDIA-SP\ccminer.exe -a skein -o stratum+tcp://skein.mine.ahashpool.com:4933 -u 17nWUDPvTfMtCwbPQs98NaKd2J559paNo1 -p nvidiaworker,c=BTC -b 4068'
```

This switch never happened:
```
2018-03-25 22:17:42 INFO: Stopping miner (ExcavatorNvidia1).
2018-03-25 22:17:42 INFO: Starting miner (ExcavatorNvidia2): 
```

There was no third time, becase a more profitable algo with a different miner came.

I have had no problem with Excavator with that algos. So overclock is not the issue here.