I've tripped over to my backup pools a fair few times today, having some issues?
I hope this stratum becomes stable soon. The pool was down at least 4 times since yesterday, including right now. The last week has had lots of problems as well.
At some point, when you have to use a fail safe so much so often, it's not really a fail safe anymore. It's your main, with this pool getting the leftover scraps when it just happens to actually be up.
I've isolated the problem this morning and made some script tweaks to ensure it shouldn't come back.
I've also made some adjustments to round times. By default they will be slightly longer (more in the range of 20 minutes), unless a coin is found to be X times more profitable during that period. We also check for profitability more frequently now, so it may result in a few quicker switches (if a coin is X more profitable), along with some longer round times when profitability of coins is similar.