Bridge issues

Hi, I am currently struggling with the connection between my two bridges, I have purchased Mikrotik SXTSQ 5AC bridges, i want to connect them about a 700m from each other.
At the moment they are connected with each other, but i don’t have access to the network.

My setup -

  1. Home Router to First Device
  2. Second device to the new router.

On the new router i don’t have internet connection.
Please help me on the setup, maybe i have messed up. Appologies maybe as i haven’t worked with these Winbox settings before.

First Device Setting export

jan/07/1970 00:20:39 by RouterOS 6.48.6

software id = XZQR-448F

model = RBSXTsqG-5acD

serial number = HD508C8KDWQ

/interface bridge
add name=bridge1
/interface ethernet
set [ find default-name=ether1 ] rx-flow-control=auto tx-flow-control=auto
/interface wireless
set [ find default-name=wlan1 ] band=5ghz-a/n/ac channel-width=20/40/80mhz-Ceee
country=latvia disabled=no frequency=auto mode=bridge ssid=PTP
wireless-protocol=802.11
/interface wireless nstreme
set wlan1 framer-policy=dynamic-size
/interface list
add name=WAN
add name=LAN
/interface wireless security-profiles
set [ find default=yes ] supplicant-identity=MikroTik wpa-pre-shared-key=
arnolds5 wpa2-pre-shared-key=arnolds5
/interface bridge port
add bridge=bridge1 interface=wlan1
add bridge=bridge1 interface=ether1
/ip neighbor discovery-settings
set discover-interface-list=!dynamic
/interface list member
add interface=ether1 list=WAN
add interface=wlan1 list=LAN
/interface wireless access-list
add mac-address=18:FD:74:AA:00:BC
/ip address
add address=192.168.88.30 interface=bridge1 network=192.168.88.30
add address=192.168.88.26 interface=wlan1 network=192.168.88.1
/ip dhcp-client
add interface=bridge1
/ip dns
set servers=192.168.0.20
/ip route
add disabled=yes distance=1 gateway=192.168.88.0
/system identity
set name=RouterOS


Second Device Export

jan/02/1970 15:23:57 by RouterOS 6.48.6

software id = CEHC-JRSQ

model = RBSXTsqG-5acD

serial number = HD508F6W4YY

/interface bridge
add name=bridge1
/interface wireless
set [ find default-name=wlan1 ] band=5ghz-a/n/ac channel-width=20/40/80mhz-Ceee
country=latvia disabled=no mode=station-bridge ssid=PTP
/interface list
add name=WAN
add name=LAN
/interface wireless security-profiles
set [ find default=yes ] supplicant-identity=MikroTik
/interface bridge port
add bridge=bridge1 interface=wlan1
add bridge=bridge1 interface=ether1
/ip neighbor discovery-settings
set discover-interface-list=!dynamic
/interface list member
add interface=wlan1 list=WAN
add interface=ether1 list=LAN
/ip address
add address=192.168.88.10 interface=bridge1 network=192.168.88.1
add address=192.168.88.12 interface=wlan1 network=192.168.88.1
/ip dns
set servers=192.168.0.1
/ip dns static
add address=192.168.0.15 name=Internet
/system identity
set name=RouterOS

They are connected both.
Maybe i have missed something?

At first look, this line /ip address add address=192.168.88.30 interface=bridge1 network=192.168.88.30 seems NOT correct to me (maybe, it should be network=192.168.88.1 according to the rest of config?). Also, it might be better with network=192.168.88.0 as the main router has 192.168.88.1 (?), I assume.

Do I understand that you want this kind of network: Main Router ← cable → AP1 ← 700m wireless → AP2 ← → Some endpoints ?
If so, I would expect something like: 192.168.88.1 ← cable → 192.168.88.11 ← 700m wireless → 192.168.88.12 ← → 192.168.88.100-DHCP… with network 192.168.88.0…

Maybe, you should try to draw a complete network configuration on paper first and then recreate that using Winbox - personally, it helps me a lot when struggling with TiKs config.

Hi,
For the main router details
IPv4 adress - 192.168.88.19
IPv4 DNS Server - 192.168.88.1 (Unencrypted)

To the additional router at the end i want to add the security cameras, but those can be added to the Wifi connection, but as i have no internet on that side, at the moment it is impossible.

Address seting should also include subnet mask, network addresses should be also set to proper values (or left out and ROS will assign correct value automatically) i.e.

/ip address
add address=192.168.88.30> /24 > interface=bridge1 network=192.168.88.> 30> 0
add address=192.168.88.26> /24 > interface=wlan1 network=192.168.88.> 1> 0

And similarly on the other device.

The first device has DHCP client running, but with IP address set statically it shouldn’t be necessary.

If you want that devices can access internet (e.g. to access ROS upgrade sites or anything other), you have to set default route as well.

For the first device i have update the settings.
Please see the following, don’t understand those questions about route and DNS, tried to add the route and DNS as well.

jan/07/1970 05:31:07 by RouterOS 6.48.6

software id = XZQR-448F

model = RBSXTsqG-5acD

serial number = HD508C8KDWQ

/interface bridge
add name=bridge1
/interface ethernet
set [ find default-name=ether1 ] rx-flow-control=auto tx-flow-control=auto
/interface wireless
set [ find default-name=wlan1 ] band=5ghz-a/n/ac channel-width=20/40/80mhz-Ceee country=latvia disabled=no frequency=auto mode=bridge ssid=PTP wireless-protocol=802.11
/interface wireless nstreme
set wlan1 framer-policy=dynamic-size
/interface list
add name=WAN
add name=LAN
/interface wireless security-profiles
set [ find default=yes ] supplicant-identity=MikroTik wpa-pre-shared-key=arnolds5 wpa2-pre-shared-key=arnolds5
/interface bridge port
add bridge=bridge1 interface=wlan1
add bridge=bridge1 interface=ether1
/ip neighbor discovery-settings
set discover-interface-list=!dynamic
/interface list member
add interface=ether1 list=WAN
add interface=wlan1 list=LAN
/interface wireless access-list
add mac-address=18:FD:74:AA:00:BC
/ip address
add address=192.168.88.30/24 interface=bridge1 network=192.168.88.0
add address=192.168.88.26/24 interface=wlan1 network=192.168.88.0
/ip dhcp-client
add disabled=no interface=bridge1
/ip dns
set servers=192.168.0.20
/ip route
add distance=1 dst-address=192.168.88.1/32 gateway=ether1,bridge1,wlan1
/system identity
set name=RouterOS

As the device is acting as bridge, not a router, you only need a single IP address which should be applied to the bridge, not bridge ports. That gateway setting is complety incorrect. Changes would be along this lines of:
/interface list
add name=WAN
add name=LAN
/interface list member
add interface=ether1 list=WAN
add interface=wlan1 list=LAN
/ip address
add address=192.168.88.30/24 interface=bridge1 network=192.168.88.0
add address=192.168.88.26/24 interface=wlan1 network=192.168.88.0
/ip dhcp-client
add disabled=no interface=bridge1
/ip dns
set servers=192.168.0.20<Your_DNS_server_IP>
/ip route
add distance=1 dst-address=192.168.88.1/32 gateway=ether1,bridge1,wlan1
add distance=1 gateway=<Your_gateway_IP> # this is your main router, not the other bridge device

I took off the interfaces and now i cant connect to the boxes anymore.

Took off the interfaces from what? You should be able to use MAC access from Winbox to access the devices even with no or a broken configuration.

They are no longer showing on the list, when i try to connect with cable and winbox, the mac adresses are not showing up. And now even the reset button is not working somehow, can’t get the factory configuration.

Tried Again, with no luck. Please help guys, I don’t know if i have setup something incorrectly or what?
When trying to connect station bridge to my Router, i have no internet connection.
Here are my settings, can you tell me what is wrong?

I did this with the quick set tool and as well took off all configs, so no defaults are there, both are giving signals.
Bridge

jan/02/1970 02:04:20 by RouterOS 6.48.6

software id = XZQR-448F

model = RBSXTsqG-5acD

serial number = HD508C8KDWQ

/interface bridge
add name=bridge1
/interface wireless
set [ find default-name=wlan1 ] band=5ghz-onlyac channel-width=20/40/80mhz-eCee country=latvia disabled=no frequency=auto mode=bridge ssid="PTP Connect " wireless-protocol=802.11
/interface list
add name=WAN
add name=LAN
/interface wireless security-profiles
set [ find default=yes ] supplicant-identity=MikroTik
/ip hotspot profile
set [ find default=yes ] html-directory=hotspot
/interface bridge port
add bridge=bridge1 interface=wlan1
add bridge=bridge1 interface=ether1
/interface list member
add interface=ether1 list=WAN
add interface=wlan1 list=LAN
/ip address
add address=192.168.88.1/24 interface=wlan1 network=192.168.88.0
add address=192.168.1.100/24 interface=wlan1 network=192.168.1.0
/ip dns
set servers=8.8.8.8,4.2.2.2
/ip route
add distance=1 gateway=192.168.1.254
/system identity
set name=RouterOS


Station Bridge

jan/02/1970 00:47:12 by RouterOS 6.48.6

software id = CEHC-JRSQ

model = RBSXTsqG-5acD

serial number = HD508F6W4YY

/interface bridge
add name=bridge1
/interface wireless
set [ find default-name=wlan1 ] band=5ghz-onlyac channel-width=20/40/80mhz-Ceee country=latvia disabled=no mode=station-bridge ssid="PTP Connect " wireless-protocol=nv2-nstreme-802.11
/interface list
add name=WAN
add name=LAN
/interface wireless security-profiles
set [ find default=yes ] supplicant-identity=MikroTik
/ip hotspot profile
set [ find default=yes ] html-directory=hotspot
/interface bridge port
add bridge=bridge1 interface=wlan1
add bridge=bridge1 interface=ether1
/interface list member
add interface=wlan1 list=WAN
add interface=ether1 list=LAN
/ip address
add address=192.168.1.101/24 interface=ether1 network=192.168.1.0
/ip dns
set servers=4.2.2.2,8.8.8.8
/ip route
add distance=1 gateway=192.168.1.254
/system identity
set name=RouterOS


Here is the traffic -

Wasn’t able to upload somehow…
Screenshot 2023-07-27 231901.png

A few things:

  • on station-bridge device set channel-width=20/40/80mhz-XXXX … this allows station to follow AP also for channel layout (currently there’s a mismatch)
  • IP address on bridge device should be set on bridge1 interface (not on bridge port which wlan1 is)
  • similarly IP address on station bridge device (it’s on ether1 now)

Sorry, i dont get it, if the channel has been selected automatically when i connect station bridge to the bridge device, it selects frequency and channels.

Should i add the bridge IP also?

Well, I may be wrong, I’m not running MT devices in station modes (well, I have a pair but I’m not going to experiment), but AFAIK frequency selection is distinctive from channel layout selection - on AP, there are two properties (frequency and channel-width). Channel-width property is kind of backwards-compatible in sense that if the other end doesn’t support maximum width, then the link uses subset of channels (narrower bandwidth) supported by both AP and station. E.g. if AP is set to 20/40/80mhz-eCee and station only supports 20/40mhz (no channel layout forced), then that particular connection will work over eCee part (because the lower 40MHz make legal 20+20 channel … unless you’re manually setting things in non-standard way). But if station forces channel layout Ce, then the common denominator is only single 20MHz eCee channel. Another explanation is this: value of property frequency is center frequency of Control channel … and actually used frequency band is then limited to overlap range of AP and station channel layouts around the control channel.
So on station it’s best to let autoselection of channel layout (the same way as it’s best not to fix frequency … if AP changes frequency for any reason, station wouldn’t be able to follow).


No, you should move IP addresses (the ones you already have) from individual bridge ports to bridge interface.

Hey, everything is fine now thanks all for help.

I didnt had the issue with the bridge setup.
Issue was with the router that i was using for the internet connection. The ports werent working when changed the cable to different router it works.

Had do change the gateway, but that was easy fix.