NEXTGEN WIFI module crashes enabling TCP server

I’ve been using the Wifi module with the 20 amp board for about two years. Had this problem from the start, but we’ve been ignoring it. When you enable TCP server the web interface goes unresponsive. Any browser responds with “website it taking too long to respond”. NCD base is also unable to connect. We can connect to the on-board wifi and disable the TCP server. After which, everything returns to normal.