Thank you for the info. It can be done (to avoid devfee DAG switching for Nodez) but we need a working wallet and working pool for this coin (with at least a dozen GH/s or so). Devfee of 0.65% means that it is only about 1 in 153 found shares on average that goes to the devfee account and if the hasrate for this coin is below certain threshold, the devfee is essentially zero.

Sorry for this problem. We managed to reproduce it here thanks to the log you have send. It doesn't happen often but when it does it can be fairly annoying. Eventually the miner manages to connect but it may take a ten or more attempts. We are going to find the root cause and will introduce a fix (but probably not in version 2.3 as it is already being tested internally). In the meantime if the miner can't connect with "Connection attempt aborted" error after a few attempts, the best workaround it to close it (ignore the error on exit if you get one) and start it again.

We will send you the link to the new version via PM. It includes slightly modified kernels for Ellesmere GPUs (RX470/480/570/580), which can be used if the option -clKernel 2 (or -asm 2 if you prefer Claymore's command-line syntax). Please note that during our testing on similar hardware to yours, the alternative kernel runs a little bit faster but only with very specific combination of core/mem clocks so in most cases we recommend using the default Ellesmere kernels.