I get this error those three days

ETH: Stratum - Cannot connect to eth-eu.dwarfpool.com:8008
DevFee: ETH: Stratum - Failed to connect, retry in 20 sec...

and need to restart miner frequently

Any idea?
 

You probably have too weak psu or something.

Try running it with -ethi 1 in eth-mode.

You can try smOS and see if it still happens. If it still happens it will most likely be a hardware issue

No difference with -ethi 1  ?

Trying dual mode for the first time on one of my rigs.  Mining eth and pascal.  All seems to work but my eth speed dropped from 99Mh to 71Mh
I'm pretty sure that's not suppose to happen.  Mining with 4x RX 480's 8GB
Any thoughts as to why?  Not worth losing 30% of eth speed.

Here is my start.bat per Nanopool instructions.

GPU_FORCE_64BIT_PTR 0
GPU_MAX_HEAP_SIZE 100
GPU_USE_SYNC_OBJECTS 1
GPU_MAX_ALLOC_PERCENT 100
GPU_SINGLE_ALLOC_PERCENT 100
EthDcrMiner64.exe -epool eth-us-west1.nanopool.org:9999 -ewal ETHWALLET.ADDRESS/Miner1/EMAIL -epsw x -dpool stratum+tcp://pasc-us-west1.nanopool.org:15555 -dwal PASCAL.WALLET.Miner1/EMAIL -dpsw x -dcoin pasc -etht 1000 -dcrt 1000 -ftime 10

Confirm this bug from time to time. There were 25-50 nodes in the list.

Stupid enough question. How can you pretend to run a R9 380 which consumes 200-250 watt power from a dell vostro 260 psu which usually is 240-300 watt ? You risk to burn it down.

It has a 500 w PSU on it, but even if not it should at least boot, you don´t need 300 watts if the GPU is just sitting there with no work.
The mobo on it has 4 PCIE, it would make for a good rig, if I get it to boot

Yes it should be, but don't add a third card to it.