Ok, I take that back lol. It's still happening:

S9lab16ip3dot233    OK -> Low    2 hours, 50 minutes    3.484 Th/s    7.890 Th/s
S9ip4dot166    OK -> Low    30 minutes    7.868 Th/s    8.033 Th/s
S9ip3dot67    OK -> Low    4 hours, 35 minutes    6.680 Th/s    9.270 Th/s
S9wabush9dot174    OK -> Low    4 hours, 25 minutes    7.695 Th/s    8.764 Th/s

Weird. Make sure you have the correct stratum server address. Are you able to traceroute or ping the pool address from the rpi3?

Open a command prompt from a machine on the same subnet as the miner and run "tracert us-east.stratum.slushpool.com " . You can google "how to trace route" .

Issue does not seem to be resolved.

I think this time the issue should be resolved (at least for me ) as I don't any more miner hashrate drop e-mail notifications. The last notification I got was at 4:22 AM EST.

Much appreciated! Thanks.

Yes thanks for making the fix.

No such thing. It's however often you want to withdraw your earnings. However bear in mind that you pay TX fees so maybe set it to something that gives you a daily payout or several times per week. The pool pays during all times during the day as long as you hit the payout threshold.

change the worker name and see if the new one appears...I've had this happen to me before.

I think what you really need is to calculate the expected duration of the pool to calculate the calculation power of 43.5% (about 23 minutes). If you have gone solo after a mean of 43.5% and have been alone for the average block discovery period (about 40 minutes), your average performance of your miner must still exceed the performance of the full-time pool mining. . Nevertheless, I did not do mathematics to make the expected payment of this strategy, so I might be wrong.