There was a post from Claymore. Here it is.

"Claymore is hacked by tons of newbies. Attacked by them in PM too. Maybe I need to create another FAQ for newbies, but most of them will not read it.
Just some quick answers to recent questions:

1. If you think that the miner will mine even if you turn off the router, wait a couple of minutes more, it will stop.
2. Place all command line arguments in .BAT file in a single line. Arguments from the second line will be ignored.
3. Use latest version if you have problems with DCR or SIA.
4. I don't have any private versions with +50% speed.
5. I'm a software developer, so I think I cannot help you to build your mining rig properly or provide you with the list of necessary parts, please ask this question here on forum or search here, there are many threads related to hardware.
6. Please read Readme.txt or original post of this thread for command line samples, options description and FAQ.
7. I don't have miners for Tesla, IBM CPUs, Phi or for very old GPUs.
8. Mining on laptops is a bad idea.
9. You will not see full hashrate on pool immediately, you have to wait for 24 hours at least.
10. If miner cannot generate DAG file, check environment variables (see Readme), check if your GPU has 3GB memory at least, and check if you have enough virtual memory (pagefile). If all this does not help, try to install more physical RAM.

And sometimes I see really interesting messages. Recently I got PM from a newbie account, he found the issue with Pascal nonces from the log file. I was impressed."

[Wed Jun 21 12:31:44 2017] r8169 0000:08:00.0 p11p1: link down
[Wed Jun 21 12:42:31 2017] r8169 0000:08:00.0 p11p1: link up