constantly disconnected miners

since yesterday I have been constantly disconnected miners. Its working fine with me. What I recorded was 20 to 30 times disconnection. Then it turns out to be profitable !!!

More info would be needed.

What miners do you use.
Where do you connect from?
What settings do you use on the miners?

13x S9, optical cable. Ive been connected fo over a month and this started yesterday Miners. Miners are running for 10 to 30 minutes and the connection lost, immediatelly he will join again.

And what settings?

prohashing.com:3335
username
n=miner1

or do you use other settings?

exactly. only without parameters "n"

So you are direct connecting from your network right to prohashing.
Not buying hashing power from someplace else, using your own machines no proxy or hosts.
Using bitmining machines on the 3335 port for sha-256 coins.
It makes connections and works for a while then gets disconnected.

Where in the world are you mining from?
If you go to the diagnostic page can your machine ping complete a 4 of 4 ping to prohashing.com?

Yes. Using my miners no proxy or host. Yes. ping 13ms. Czech

Sorry, ping 100ms