I will setup site to site ipsec, openvpn, pptp ,l2tp with mikrotik

I can configure and fix the issue like as

 Queues

Simple Queue

PCQ (Per Connection Queue)

Total Bandwidth Queue

Parent Queue

Priority Queue

Server

Radius Server

Cache Server

Proxy Server

PPPoE (Point to Point Protocol over Ethernet)

VLAN (Virtual Local Area Network)

VRRP(Virtual Router Redundancy Protocol)

Version Upgrade & Downgrade

Load Balancing over Multiple gateways

Dual WAN Load Balancing

Port Forwarding

Log Server Configure

Graph monitoring Setup

Spammer Detect and Block

Trojan Block

Local Bandwidth Manage

Day & Night Package

MAC Binding

Hotspot Setup

Bridge configure

Bonding setup

Firewall configure

Filter Rules

4 ways NAT rules configure

Mangle rules configure

Layer7 Protocol

Routing

Static Routing

Dynamic Routing (OSPF, BGP, RIP )