The short answer
A timeout can happen before authentication starts. Confirm the current address, route and configured port, then compare a known local source on the same computer.
Work through the checks
Read the camera address in your router’s DHCP client list or the manufacturer’s local setup tool. Confirm the entry against the MAC address instead of guessing an address.
Check which Ethernet, Wi-Fi or VPN adapter owns the route to the camera. Test a single known route before changing adapter priority or network policy.
Put the computer and camera on a network that permits local communication. A guest SSID, client isolation or a separate recorder PoE network can block access even when both devices have internet.
Test only the configured device and service port from the Windows computer. A successful TCP connection proves reachability to that port, not correct credentials or a decoded video image.
What to verify
Compare the failing source with a known working local source using the same computer. Keep credentials private and use your own authorized devices; do not test unknown public camera feeds.
Sources and scope
AeoCam is available for Windows. Camera settings below describe protocol preparation, not a certification of a particular camera or a promise of every feature in every app version. Check the installed build and the Microsoft Store listing for current availability.
Vendor documents describe the camera or protocol. No physical-camera compatibility test is claimed here. Menus and capabilities can change with model and firmware.