How to make NAT work on RouterOS if the simple and explicit solution doesn't work?

Question

Mikrotik

Strange situation with RouterOS 6.32.2 on RB951G, theoretically NAT is enabled with one simple command:

/ip firewall nat add action=masquerade chain=srcnat out-interface=ether5

(in my case, ether5 acts as a WAN port)
In fact, NAT does not work. Additionally did:
/ip firewall connection tracking set enabled=auto
also tried
/ip firewall connection tracking set enabled=yes
As a result, from the LAN (bridge1) the default gateway of the WAN port (ether5) is not pinged. Just in case, I removed all the rules / ip firewall filter
Should work, but does not work, can someone tell me what I missed?
UPD: it looks like I found what I missed, in the section:

/ip dhcp-server network
add address=10.10.x.y/25 gateway=10.10.x.z netmask=25

My DHCP server was giving the wrong gateway IP address. Thanks Alexander Karabanov for help

Answer 1

Correct answer:
everything is correct, for NAT to work it is enough:

/ip firewall nat add action=masquerade chain=srcnat out-interface=ether5
/ip firewall connection tracking set enabled=auto

The error was that the DHCP server issued the wrong default gw in the section:

/ip dhcp-server network add address=10.10.x.y/25 gateway=10.10.x.z netmask=25