Disconnects the Internet on computers

RouterOS General
1

Some of my computers do not have Internet access. At the beginning it is, and after some time it disappears. Sometimes reboot helps, and sometimes disable and enable a network card.
The second problem is disconnects me from winbox. Sometimes it works hour, sometimes every few minutes disconnects.
Please help.

[admin@MikroTik] > ip address print         
Flags: X - disabled, I - invalid, D - dynamic 
 #   ADDRESS            NETWORK         INTERFACE                                
 0   xx.x.xxx.xx/30     xx.x.xxx.xx     ether1                                   
 1   192.168.0.100/24   192.168.0.0     ether2                                   
 2   10.0.4.1/23        10.0.4.0        ether2                                   
 3 I 192.168.1.1/24     192.168.1.0     *13                                      
[admin@MikroTik] > ping 10.0.5.67




[admin@MikroTik] > ip dhcp-server print     
Flags: X - disabled, I - invalid 
 #   NAME       INTERFACE     RELAY           ADDRESS-POOL     LEASE-TIME ADD-ARP
 0   dhcp1      ether2                        ip-pool          1w3d       yes




[admin@MikroTik] > ip pool print            
 # NAME                                           RANGES                         
 0 adresy_do_sprawdzania_mac                      192.168.0.100/31               
 1 ip-pool                                        10.0.4.10-10.0.4.25            
                                                  10.0.5.3-10.0.5.125




[admin@MikroTik] > ip firewall filter print 
Flags: X - disabled, I - invalid, D - dynamic 
 0    ;;; BLOKADA FACEBOOK 
      chain=forward action=drop protocol=tcp dst-address=10.0.5.51-10.0.5.66 
      layer7-protocol=URL_STS log=no log-prefix="" 

 1    ;;; BLOKADA FACEBOOKA 2
      chain=forward action=drop protocol=tcp dst-address=10.0.5.151-10.0.5.158 
      layer7-protocol=URL_STS log=no log-prefix="" 

 2    ;;; nie akceptuj zapytania DNS (UDP)
      chain=input action=drop protocol=udp in-interface=ether1 dst-port=53 
      log=no log-prefix="" 

 3    ;;; nie akceptuj zapytania DNS (TCP)
      chain=input action=drop protocol=tcp in-interface=ether1 dst-port=53 
      log=no log-prefix="" 

 4    ;;; akceptuj ICMP
      chain=input action=accept protocol=icmp log=no log-prefix="" 

 5    ;;; akceptuj SSH
      chain=input action=accept protocol=tcp dst-port=22 log=no log-prefix="" 

 6    ;;; akceptuje web interface
      chain=input action=accept protocol=tcp dst-port=80 log=no log-prefix="" 

 7    ;;; akceptuj WinBox
      chain=input action=accept protocol=tcp dst-port=8291 log=no log-prefix="" 

 8    ;;; akceptuj polaczenia zestawione
      chain=input action=accept connection-state=established log=no 
      log-prefix="" 

 9    ;;; akceptuj polaczenia powiazane
      chain=input action=accept connection-state=related log=no log-prefix="" 

10    ;;; blokuj wszystko inne
      chain=input action=drop log=no log-prefix=""