HELP!! Load Balance - open dns - join domain issues

Hi all!! I would like to know if some can help me here. i have setup a network (RB750GL) with 2 ISP doing load balances, DHCP server, i’m using open dns, i also have a domain controler. but i don’t know why i can’t join a computer to the domain with out removing the gateway (mikrotik) from the PC. i would like to know who i can set this network so i can keep using the internet with out any issue but allow the local network to resolve the domain controler DNS

Any help will be appreciate!

/command        Use command at the base level
[admin@MikroTik] > export
# aug/12/2016 17:15:54 by RouterOS 6.28
# software id = 7WSX-N3V1
#
/interface ethernet
set [ find default-name=ether1 ] comment="OSNET - Port 1" name=ISP1
set [ find default-name=ether2 ] comment="Liberty - Port 2" name=ISP2
set [ find default-name=ether3 ] comment="LAN PORTS 3-5" name=LAN
set [ find default-name=ether4 ] master-port=LAN
set [ find default-name=ether5 ] master-port=LAN
/interface pptp-server
add name=pptp-in1 user=automation
/ip neighbor discovery
set ISP1 comment="OSNET - Port 1"
set ISP2 comment="Liberty - Port 2"
set LAN comment="LAN PORTS 3-5"
/ip pool
add name=dhcp_pool1 ranges=192.168.3.16-192.168.3.254
add name=dhcp_pool2 ranges=192.168.3.2-192.168.3.254
add name=dhcp_pool3 ranges=192.254.98.126
add name=DHCPPOOL_VPN ranges=192.168.4.0/24
/ip dhcp-server
add address-pool=dhcp_pool2 disabled=no interface=LAN lease-time=3d name=dhcp1
/ppp profile
set 1 local-address=192.168.3.1 remote-address=DHCPPOOL_VPN
/ip firewall connection tracking
set enabled=yes
/interface pptp-server server
set enabled=yes
/ip address
add address=192.168.3.1/24 comment=Lan interface=LAN network=192.168.3.0
add address=**.**.**.**/30 comment="OSNET Static" interface=ISP1 network=\
    *.*.*.124
add address=**.**.**.**/30 comment="LIBERTY Static" interface=ISP2 network=\
    *.*.*.224
/ip arp
add address=192.168.3.2 comment=ESXi interface=LAN mac-address=\
    34:40:B5:93:B4:5C
add address=192.168.3.3 comment="Pano Manager" interface=LAN mac-address=\
    00:0C:29:2E:1B:CC
add address=192.168.3.4 comment=AVG interface=LAN mac-address=00:0C:29:59:DB:D7
add address=192.168.3.5 comment=Ponchador interface=LAN mac-address=\
    44:C2:33:02:AA:93
add address=192.168.3.6 comment=Printer interface=LAN mac-address=\
    00:80:91:4E:04:77
add address=192.168.3.7 comment=Ruckus interface=LAN mac-address=\
    C0:8A:DE:21:7D:40
add address=192.168.3.8 comment=DVR interface=LAN mac-address=00:11:14:0D:6E:83
add address=192.168.3.9 comment="Prophet21 - old server" interface=LAN \
    mac-address=00:09:6B:BE:8A:50
add address=192.168.3.10 comment=SMTP interface=LAN mac-address=\
    00:08:74:CC:D8:F5
add address=192.168.3.11 comment=DC interface=LAN mac-address=00:0C:29:50:F0:B0
/ip cloud
set ddns-enabled=yes
/ip dhcp-client
add default-route-distance=0 dhcp-options=hostname,clientid interface=ISP2
/ip dhcp-server lease
add address=192.168.3.6 comment=Printer mac-address=00:80:91:4E:04:77 server=\
    dhcp1 use-src-mac=yes
add address=192.168.3.2 comment=ESXi mac-address=34:40:B5:93:B4:5C server=dhcp1 \
    use-src-mac=yes
add address=192.168.3.11 comment=DC mac-address=00:0C:29:50:F0:B0 server=dhcp1 \
    use-src-mac=yes
add address=192.168.3.10 comment=SMTP mac-address=00:08:74:CC:D8:F5 server=\
    dhcp1 use-src-mac=yes
add address=192.168.3.8 comment=DVR mac-address=00:11:14:0D:6E:83 server=dhcp1 \
    use-src-mac=yes
add address=192.168.3.9 comment="Prophet 21 - old" mac-address=\
    00:09:6B:BE:8A:50 server=dhcp1 use-src-mac=yes
add address=192.168.3.5 comment=Ponchador mac-address=44:C2:33:02:AA:93 server=\
    dhcp1 use-src-mac=yes
add address=192.168.3.3 comment="Pano Manager" mac-address=00:0C:29:2E:1B:CC \
    server=dhcp1 use-src-mac=yes
add address=192.168.3.4 comment=AVG mac-address=00:0C:29:59:DB:D7 server=dhcp1 \
    use-src-mac=yes
add address=192.168.3.7 comment=Ruckus mac-address=C0:8A:DE:21:7D:40 server=\
    dhcp1 use-src-mac=yes
add address=192.168.3.39 client-id=1:0:27:22:8e:7c:7 comment="HTP-AP - A" \
    mac-address=00:27:22:8E:7C:07 server=dhcp1
add address=192.168.3.47 client-id=1:0:27:22:8e:7e:5f comment="HTP-AP - B" \
    mac-address=00:27:22:8E:7E:5F server=dhcp1
add address=192.168.3.48 client-id=1:f8:a9:63:80:68:ad comment="Sammy's Laptop" \
    mac-address=F8:A9:63:80:68:AD server=dhcp1
add address=192.168.3.52 client-id=1:0:c:29:cb:37:a2 comment=\
    "Spiceworks Server" mac-address=00:0C:29:CB:37:A2 server=dhcp1
add address=192.168.3.12 always-broadcast=yes client-id=1:44:a8:42:11:cb:37 \
    comment="New Prophet 21 server" mac-address=44:A8:42:11:CB:37 server=dhcp1
add address=192.168.3.13 client-id=1:70:e2:84:13:17:69 comment="ESXi New" \
    mac-address=70:E2:84:13:17:69 server=dhcp1
/ip dhcp-server network
add address=192.168.3.0/24 dhcp-option=*FFFFFFFF dns-server=192.168.3.1 \
    gateway=192.168.3.1
/ip dns
set allow-remote-requests=yes cache-size=5000KiB max-udp-packet-size=512 \
    servers=208.67.222.222,208.67.220.220
/ip firewall filter
add action=drop chain=input comment="Telnet log in... warning" log=yes \
    src-address=12.205.69.2
add action=drop chain=output comment="Telnet log in... warning out" \
    dst-address=12.205.69.2 log=yes
add action=drop chain=input comment="drop ftp brute forcers" dst-port=21 \
    protocol=tcp src-address-list=ftp_blacklist
add chain=output content="530 Login incorrect" dst-limit=1/1m,9,dst-address/1m \
    protocol=tcp
add action=add-dst-to-address-list address-list=ftp_blacklist \
    address-list-timeout=3h chain=output content="530 Login incorrect" \
    protocol=tcp
add action=drop chain=input comment="drop ssh brute forcers" dst-port=22 \
    protocol=tcp src-address-list=ssh_blacklist
add action=add-src-to-address-list address-list=ssh_blacklist \
    address-list-timeout=4w2d chain=input connection-state=new dst-port=22 \
    protocol=tcp src-address-list=ssh_stage3
add action=add-src-to-address-list address-list=ssh_stage3 \
    address-list-timeout=1m chain=input connection-state=new dst-port=22 \
    protocol=tcp src-address-list=ssh_stage2
add action=add-src-to-address-list address-list=ssh_stage2 \
    address-list-timeout=1m chain=input connection-state=new dst-port=22 \
    protocol=tcp src-address-list=ssh_stage1
add action=add-src-to-address-list address-list=ssh_stage1 \
    address-list-timeout=1m chain=input connection-state=new dst-port=22 \
    protocol=tcp
add action=drop chain=forward comment="drop ssh brute downstream" dst-port=22 \
    protocol=tcp src-address-list=ssh_blacklist
add action=drop chain=input comment="drop telnet brute forcers" dst-port=23 \
    protocol=tcp src-address-list=telnet_blacklist
add action=add-src-to-address-list address-list=telnet_blacklist \
    address-list-timeout=4w2d chain=input connection-state=new dst-port=23 \
    protocol=tcp src-address-list=telnet_stage3
add action=add-src-to-address-list address-list=telnet_stage3 \
    address-list-timeout=1m chain=input connection-state=new dst-port=23 \
    protocol=tcp src-address-list=telnet_stage2
add action=add-src-to-address-list address-list=telnet_stage2 \
    address-list-timeout=1m chain=input connection-state=new dst-port=23 \
    protocol=tcp src-address-list=telnet_stage1
add action=add-src-to-address-list address-list=telnet_stage1 \
    address-list-timeout=1m chain=input connection-state=new dst-port=23 \
    protocol=tcp
add action=drop chain=forward comment="drop telnet brute downstream" dst-port=\
    23 protocol=tcp src-address-list=telnet_blacklist
add chain=input connection-state=established
add chain=input connection-state=related
add chain=input protocol=udp
add chain=input connection-state=invalid
/ip firewall mangle
add chain=prerouting dst-address=**.**.**.124/30 in-interface=LAN
add chain=prerouting dst-address=**.**.**.224/30 in-interface=LAN
add chain=prerouting disabled=yes dst-address=192.168.3.0/24 in-interface=LAN
add action=mark-routing chain=prerouting comment=\
    "SSL Traffic - need to add route" dst-port=443 new-routing-mark=\
    "SSL traffic" protocol=tcp
add action=mark-routing chain=prerouting comment=\
    "web mail ip - need to add route" dst-address=**.**.**.235 \
    new-routing-mark="mail ip" passthrough=no protocol=tcp
add action=mark-routing chain=prerouting comment=\
    "Hi-tech HTTP ip - need to add route" disabled=yes dst-address=\
    **.**.**.221 new-routing-mark="Hi-Tech HTTP Liberty DHCP" passthrough=no \
    protocol=tcp
add action=mark-connection chain=prerouting connection-mark=no-mark \
    in-interface=ISP1 new-connection-mark=ISP1_conn
add action=mark-connection chain=prerouting connection-mark=no-mark \
    in-interface=ISP2 new-connection-mark=ISP2_conn
add action=mark-connection chain=prerouting connection-mark=no-mark \
    dst-address-type=!local in-interface=LAN new-connection-mark=ISP1_conn \
    per-connection-classifier=both-addresses-and-ports:2/0
add action=mark-connection chain=prerouting connection-mark=no-mark \
    dst-address-type=!local in-interface=LAN new-connection-mark=ISP2_conn \
    per-connection-classifier=both-addresses-and-ports:2/1
add action=mark-connection chain=prerouting comment="2/2 liberty" \
    connection-mark=no-mark dst-address-type=!local in-interface=LAN \
    new-connection-mark=ISP2_conn per-connection-classifier=\
    both-addresses-and-ports:2/2
add action=mark-routing chain=prerouting connection-mark=ISP1_conn \
    in-interface=LAN new-routing-mark=to_ISP1
add action=mark-routing chain=prerouting connection-mark=ISP2_conn \
    in-interface=LAN new-routing-mark=to_ISP2
add action=mark-routing chain=output connection-mark=ISP1_conn \
    new-routing-mark=to_ISP1
add action=mark-routing chain=output connection-mark=ISP2_conn \
    new-routing-mark=to_ISP2
/ip firewall nat
add action=masquerade chain=srcnat out-interface=ISP1
add action=masquerade chain=srcnat out-interface=ISP2
add action=masquerade chain=srcnat comment=local disabled=yes log=yes \
    out-interface=LAN
add action=masquerade chain=srcnat comment=VPN dst-address=!192.168.4.0/24 \
    src-address=192.168.4.0/24
add action=dst-nat chain=dstnat comment=Safe@Ffice disabled=yes dst-port=981 \
    protocol=tcp to-addresses=192.168.3.253 to-ports=981
add action=dst-nat chain=dstnat comment="ESXi vCenter" dst-port=197 protocol=\
    tcp to-addresses=192.168.3.254 to-ports=443
add action=dst-nat chain=dstnat comment="ESXi vSphere Console" dst-port=902 \
    protocol=tcp to-addresses=192.168.3.254 to-ports=902
add action=dst-nat chain=dstnat comment="ESXi vCenter vSpher web client" \
    dst-port=9443 log=yes protocol=tcp to-addresses=192.168.3.254 to-ports=9443
add action=dst-nat chain=dstnat comment="Pano manager" dst-port=81 protocol=tcp \
    to-addresses=192.168.3.3 to-ports=80
add action=dst-nat chain=dstnat comment="RDP Test AVG/Manage" disabled=yes \
    dst-port=1389 protocol=tcp to-addresses=192.168.3.4 to-ports=3389
add action=dst-nat chain=dstnat comment="RDP Prophet 21 New server" dst-port=\
    1390 log=yes protocol=tcp to-addresses=192.168.3.12 to-ports=3389
add action=dst-nat chain=dstnat comment=\
    "Prophet 21 New server POD - Testing on win7 VM" dst-port=3443 log=yes \
    protocol=tcp to-addresses=192.168.3.100 to-ports=3443
add action=dst-nat chain=dstnat comment="NanoStation A" dst-port=82 protocol=\
    tcp to-addresses=192.168.3.39 to-ports=80
add action=dst-nat chain=dstnat comment="NanoStation B" dst-port=83 protocol=\
    tcp to-addresses=192.168.3.47 to-ports=80
add action=dst-nat chain=dstnat comment=Printer dst-port=8080 protocol=tcp \
    to-addresses=192.168.3.6 to-ports=8080
add action=dst-nat chain=dstnat comment=Spiceworks dst-port=84 protocol=tcp \
    to-addresses=192.168.3.52 to-ports=80
add action=dst-nat chain=dstnat comment="DVR " dst-port=195 protocol=tcp \
    to-addresses=192.168.3.8 to-ports=195
add action=dst-nat chain=dstnat comment="DVR " dst-port=1600 protocol=tcp \
    to-addresses=192.168.3.8 to-ports=1600
/ip route
add comment="Liberty bypass load balance for https -need to add mangle" \
    distance=1 gateway=**.**.**.225 routing-mark="SSL traffic" scope=255
add comment="LIberty bypass load balance for web mail -need to add mangle" \
    distance=1 gateway=**.**.**.225 routing-mark="mail ip" scope=255
add check-gateway=ping distance=1 gateway=**.**.**.125 routing-mark=to_ISP1
add check-gateway=ping distance=1 gateway=**.**.**.225 routing-mark=to_ISP2
add comment="Osnet bypass load balance for web mail -need to add mangle" \
    disabled=yes distance=1 gateway=**.**.**.125 routing-mark="mail ip osnet" \
    scope=255
add comment="Osnet bypass load balance for https -need to add mangle" disabled=\
    yes distance=1 gateway=**.**.**.125 routing-mark="SSL traffic osnet" \
    scope=255
add comment="Liberty bypass load balance for Hi-Tech HTTPl -need to add mangle" \
    disabled=yes distance=1 gateway=**.**.**.225 routing-mark="Hi-Tech HTTP" \
    scope=255
add comment="Osnet bypass load balance for Hi-Tech HTTPl -need to add mangle" \
    disabled=yes distance=1 gateway=**.**.**.125 routing-mark=\
    "Hi-Tech HTTP osnet" scope=255
add comment="Liberty DHCP bypass load balance for web mail -need to add mangle" \
    disabled=yes distance=1 gateway=104.244.180.129 routing-mark=\
    "mail ip Liberty DHCP" scope=255
add comment="Liberty DHCP bypass load balance for https -need to add mangle" \
    disabled=yes distance=1 gateway=104.244.180.129 routing-mark=\
    "SSL traffic Liberty DHCP" scope=255
add comment=\
    "Liberty DCHP bypass load balance for Hi-Tech HTTPl -need to add mangle" \
    disabled=yes distance=1 gateway=104.244.180.129 routing-mark=\
    "Hi-Tech HTTP Liberty DHCP" scope=255
add check-gateway=ping distance=1 gateway=**.**.**.125
add check-gateway=ping distance=2 gateway=**.**.**.225
add comment=Automation distance=1 dst-address=192.168.88.0/24 gateway=\
    192.168.4.254
/ip upnp
set enabled=yes
/ip upnp interfaces
add interface=ISP1 type=external
add interface=ISP2 type=external
add interface=LAN type=internal
/ppp aaa
set use-radius=yes
/ppp secret
add comment="Hi-Tech Automation - Mikrotik" name=automation password= \
    profile=default-encryption
add name=ricky1 password= profile=default-encryption
add name=Wilfred password= profile=default-encryption
add name=Jmaldo password= profile=default-encryption
/radius
add address=192.168.3.12 domain=htp.local secret= service=ppp,login
/romon port
add disabled=no
/system clock
set time-zone-name=America/Puerto_Rico
/system ntp client
set enabled=yes primary-ntp=206.246.122.250 secondary-ntp=129.6.15.29
/system routerboard settings
set protected-routerboot=disabled
[admin@MikroTik] >

You will have to set the domain controller as the DNS server, not the one the ISP provides.
The domain controller then can refer to the ISP provided DNS server(s) for forwarded lookups.