Nowadays, every office, no matter how large or small it is, needs some computers networked to data server(s), printer(s), camera(s), internet, etc. in a secure, fast and reliable way. This requires a deep understanding of what you do and what your needs are, and a design to achieve the best solutions that work for your staff in and outside of your company.
The difference between a traditional office and a digital high-tech business is so much huge that you can not afford not to switch:
Every network is unique, as an example for a 9-unit dental clinic with reputable clients, we have proposed the following, which proves a network is not running just a couple of wires and wireless connections and using an ISP's router: