Site access problem

Hi all, so long story short.
Our company site was accessible and all good, then one day we needed to change the router as the old one was dead, and we bought a Mikrotik one CRS125-24G-1S-2HnD, the router is great, all is working like a charm, but suddenly we discovered our site isn’t accessible from LAN, if we access our site domain address it opens ROS web configuration page.

Routerboard IP: 172.19.0.1
Site IP: 172.19.0.61

There is a rule in the Firewall/NAT created that redirects traffic on port 80 to site ip, and for external traffic it’s working, not for internal though, what is the cause ?

Thanks in advance.

Never mind as i found the solution, hairpin NAT is the answer in these scenarios.
Basically the solution is this > http://wiki.mikrotik.com/wiki/Hairpin_NAT, so if anybody is struggling with this, the answer is very accurately presented in the wiki link.