Subnet

RouterOS General
1

Currently my RB951G has on ether1 connection to isp, ether5 lan 192.168.1.x, and tried to add on ether3 separate lan 192.168.4.x without access to 192.168.1.x. Have one device connected to ether3 but keep getting 192.168.1.x
[admin@MikroTik] > /interface vlan print
Flags: X - disabled, R - running

NAME MTU ARP VLAN-ID INTERFACE

0 R vlan2-guest 1500 enabled 2 ether3

/interface vlan print detail
Flags: X - disabled, R - running
0 R name="vlan2-guest" mtu=1500 l2mtu=1594 mac-address=4C:5E:0C:34:E7:96 arp=enabled arp-timeout=auto loop-protect=default loop-protect-status=off loop-protect-send-interval=5s loop-protect-disable-time=5m vlan-id=2 interface=ether3
use-service-tag=no

/ip dhcp-server print detail
Flags: D - dynamic, X - disabled, I - invalid
0 name="defconf" interface=bridge lease-time=10m address-pool=dhcp bootp-support=static authoritative=yes use-radius=no lease-script=""

1 name="dhcp-guest" interface=vlan2-guest lease-time=10m address-pool=dhcp-guest-pool bootp-support=static authoritative=yes use-radius=no lease-script=""

/ip address print detail where interface=vlan2-guest
Flags: X - disabled, I - invalid, D - dynamic
0 address=192.168.4.1/24 network=192.168.4.0 interface=vlan2-guest actual-interface=vlan2-guest

2

The information you provided is incomplete (I expect some errors in bridge setup). Please run command /interface export file=anynameyouwish hide-sensitive, fetch resulting file to your computer, open with text editor, redact remaining sensitive data (e.g. serial number, MAC address of WAN interface, etc.) and copy-paste it here inside [__code] [/code] tag pair.