How to fix access of Mikrotik itself to the Internet after setting up balancing?

Question

Mikrotik

I did balancing with redundancy for two WANs (here is the last question https://toster.ru/q/531204, where I corrected access to modems).
Problem: the router itself cannot go online, for example, when checking for a new firmware (ERROR: connection timed out), or to download address lists for an adblock script.
How can he be allowed?
Config:
https://pastebin.com/nx1JiwZE
PS. Now I wanted to do recursive routing to check the availability of the Internet on these 2 WAN interfaces ( mum.mikrotik.com/presentations/RU16I/presentation_... - it also immediately writes that 8.8.8.8 is unreachable. Apparently, this is the same problem.
PS2. I also noticed that tracert from computers does not work: only the first 2 packets, mikrotik and LTE modem pass through.

Answer 1

I found an error: I swapped the modems in the ports, changed the correspondence between the names of markings and ports everywhere, and in the first rules of Mangle, where mark-connectorin forgot, the connections of one interface were marked with the name of another modem. Fixed it and everything is up and running.

Answer 2

Pings from the router via LTE networks are 99% closed by the operator. At least that's how it is for me, not even on Mikrotiks, so don't rack your brains.