Hi there,
Well like the subject says, i have a cpe on a client installed connected to a Omnitik and using nv2, perfect signal etc..
The CPE its configured to use a pppoe-client to connect to the internet and im making mascarade in the local network and running a DHCP server..
without traffic, and recently rebooted the device goes all the way up to 100% of use constantly. It was running 5.25, i downgrade to 5.24 to see if there is any change, and nope, still 100%..
What its enabled?
PPPoE Client,
DHCP Server
Conntrack.
On Firewall->NAT im making Mascarade to the Internal IP (192.168.88.0/24)
I think i will change the CPE while i check the problem an try to netinstall it.. but im writing this before to go there (the client its 70miles away from where i am) to see if someone got the same issue? or maybe there is a remote way to fix it 
Thanks in advance..