linux - 2003, "Can't connect to MySQL server on {IP} (111) -


i have problem mysql connection net. appears time time, after few hours of correct work.

mysql works on linux debian, on port 44xx (not 3306) on ip available outside.

through 3 routers (2 forward port , 1 dmzone). after few hours error occurs: 2003/111 error. when try: 

telnet {ip} 44xx trying {ip}... telnet: unable connect remote host: connection refused  netstat -nat |grep tcp 0  0  0.0.0.0:44xx 0.0.0.0* listen

service mysql stop/start doesn't help

only reboot entire system... after reboot few hours ok, , again...

i lost ideas how solve problem, please me :-)

situation occours, after problem connection via wifi between 2 of routers on trace of internet query. there way fit other reboot system?

enter image description here


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