FYI, the address pool.slimcoinpool.com cannot be resolved by google's DNS
nslookup pool.slimcoinpool.com 8.8.8.8
EDIT: Until DNS issue is resolved I use stratum+tcp://63.141.232.170:3333 instead of stratum+tcp://pool.slimcoinpool.com:3333
I have transferred the DNS to Cloudflare, should be up soon
You can use stratum+tcp://slimcoinpool.com:3333
The domain name is working now. Thank you. But the miner doesn't seams to be able to connect with stratum+tcp://slimcoinpool.com:3333 or stratum+tcp://pool.slimcoinpool.com:3333