Hello there! I ran into a very primitive problem, namely: Configuring access to MikroTik CCR1016-12G via two IP addresses (2 WAN IP).

I will describe the whole problem comprehensively.
I'm exploring the Internet in search of instructions for configuring the above functions, I found one solution to this problem - packet labeling. Using this method, I did not achieve the desired result, but I got at least something.

The chain of events and settings: All actions were performed by me through WinBox, the terminal commands are given for a visual demonstration of my actions.
1. Setting rules Firewall Mangle - Made rules 4 (two for each provider):
2. After that, I went to configure the Route List (two routes, one for each provider):
It should be noted that before this stage, the device was fully configured (client devices had access to the Internet). All I did was add for each of the routes. After that, the Internet on the client devices completely disappeared.
3. I studied the situation a little and found information that it is necessary to make 2 more static routes to 0.0.0.0/0 for each of the providers – I did it and the access to the Internet for client devices appeared again.
However, access to the MikroTik CCR1016-12G device appeared only through one of the external IP addresses.

Next, I will describe checking the result:
1. Going to the address 111.111.111.111 to which routing-mark=OBIT is assigned - I get access to the web interface of the device
2. Going to the address 222.222.222.222 which is assigned routing-mark=RTLK - I do not get access to the web interface of the device
3. I disconnect (manually – by pulling out the provider's wire) 111.111.111.111
4. I check access by 222.222.222.222 which is assigned routing-mark=RTLK - I get access to the web interface of the device
5. I connect 111.111.111.111 back – the device thinks a little.
6. I check access by 222.222.222.222 which is assigned routing-mark=RTLK - I do not get access to the web interface of the device
7. I check access by 111.111.111.111 which is assigned routing-mark=OBIT - I get access to the web interface of the device
8. I'm sad and I don't understand why this is happening.

The client device is connected by a wire to the MikroTik CCR1016-12G, when one of the WAN is disconnected, it thinks a little (about 1 minute) and the connection is restored. I checked on a public website to view the IP address updating it, when I turn on the WAN back, I also think and the IP address changes.

I can take screenshots or give the device configuration on request. There is nothing secret about it.

Look at this post. Read its last paragraph first to get the relationship to your case.

Look at this post. Read its last paragraph first to get the relationship to your case.

Thank you, a good solution!
Fortunately, it was not useful, but I took it into account for further study of this equipment.

It was easier, I use PPPOE on one of the WANs and specified the wrong " in. Interface " based on the physical port, not on the PPPOE connection.

So you actually did use connection-mark already before posting? Because without assigning a connection-mark to incoming connections based on in-interface, you cannot assign the correct routing-mark to the response packets of these connections. As you've mentioned a wrong in-interface now, it seems to be the case, but in your OP, you haven't mentioned the use of connection-mark, hence I've pointed you to that summary post.