iPads using the iZettle Pro app are able to connect with most normal Wi-Fi networks that the user has full administrative rights for.
In most cases we recommend the use of a separate, dedicated Wi-Fi network for iZettle Pro and never advocate using iZettle Pro on a public Wi-Fi network that is shared with customers. Each printer will require it's own network port, otherwise a network switch will be required. Should your router not be compatible with our recommended printers we suggest that a separate router is purchased from our hardware store. Please contact our sales and support advisors for more information.