We need a lot more information than that to help you. Post your Claymore config and bat file settings Claymore version and coin you are mining here so we can see where you may be going wrong.
Also post the error message you get, this can be helpful.
sry i thought that is it known issue.
What i tried problem is only at ETH and ETC. Mining ZEC works normal.
I using claymore dual v11.
error
ETH: Stratum - Connected (europe.ethash-hub.miningpoolhub.com:20555)
Received unknown response: {"id":null,"method":"mining.notify","params":["6beb","0xa83f767da1e573cefed9f44ba27d3758c8289ee7acbb67acd4c2129da2bdd255",
"0xa74dd84414948aba4bfd6580908dbf9c32a494aa336609746d19a35bb4cccb24","0x00000000ffb34c02420e9948eacd78cf33b059a88ade1ff0614f7f3c303cf3a7",true]}
bat
setx GPU_FORCE_64BIT_PTR 0
setx GPU_MAX_HEAP_SIZE 100
setx GPU_USE_SYNC_OBJECTS 1
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_SINGLE_ALLOC_PERCENT 100
EthDcrMiner64.exe -epool europe.ethash-hub.miningpoolhub.com:20555 -ewal username.worker1 -epsw x -r 180 -tstop 65