I need some help please
I'm using a HP 6000 Pro Core 2 Duo E8400 3.0Ghz PC. The blockchain is fully synced and everything looks good, but when I issue a 'status' command in the running monerod, I'm getting this output
Height 1422179/1422179 (100.0%) on mainnet, mining at 0 H/s
I've started the mining process from my wallet with the command 'start_mining 2'
I'm getting some warning messages
[RPC0] WARN miner src/cryptonote_basic/miner.cpp:305
[P2P1] WARN net.dns src/common/dns_utils.cpp:487 WARNING: no two valid MoneroPulse DNS checkpoint records were received
as well as
[miner 0] INFO global src/cryptonote_basic/miner.cpp:416 Miner thread was started 
[miner 1] INFO global src/cryptonote_basic/miner.cpp:416 Miner thread was started 
Why questions are
1) Why is my hash rate zero?
2) Should I be concerned about the warning messages?
My thanks in advance.