I posted the same issue about a week (maybe 2) ago when I was running Claymore 8.0.
. When 9.0 was available I dl’d and began using 9.0, 2 days later when the apparent “crash fix (?)” Claymore 9.1 became available I was having no issues so stuck with the original download (9.0).
I figured the 2 day fix was likely a reduction in intensity to silence the mob,lol.
With Fail over set to default I have not seen this issue lately.
I haven’t actually paid a lot of attention to the miner the past few days but will take a closer look, and have dl’d Claymore 9.1 so I can see how it runs in comparison to 9.0.
Would be nice if Claymore gave the option of setting the dev mining to run for a few hrs at a time or even a day rather than jumping from server to server every hour.
I am in the process of building another miner and will be looking at running a Linux OS in hopes of finding a nice open source miner to play with.
Let me know if you get this figured out and I will do the same.
ETA: Just found this thread with some discussion on the latest Claymore miner releases, Miner- Claymore's Zcash Miner - #1414 by Stealth8368