I have had an IPIP Tunnel with IPSec encryption to a remote location active for more then a year now. This worked perfectly fine until I upgraded my side to RouterOS 7.1 yesterday. The Tunnel is still active, but the routing is broken which was working fine before. I can now only ping the remote sid...

I had the same problem. Just download the Main Package for your router (https://mikrotik.com/download), upload it to your router using "Files" and then just reboot the router.

Coming from pfSense there is one thing I am missing in RouterOS: The ability to change/override the Host Name of DHCP clients. Why would I want this? Well there are certain devices that output strange random Host Names which are not changeable in the device settings. Three examples I can think of ar...