This is a really strange thing. I got a working WAMP server on my laptop, installed Laravel and a web application available to my clients on the local wireless network. Everything is working flawlessy. I can communicate between my android app via the wireless AP TP-Link to the WAMP server. No need of internet, this is a LAN just for devices behind. Now, I decide to change the SSID of the AP. Change from "Zapp" to "Polls". Restart everything: AP, laptop, mobile phone. The server is not more reachable by my mobile phone. I can ping the IP address using a terminal app, but I can't access to it anymore. This, just changing the SSID. If I revert to "Zapp" SSID, everything work again. I checked IP's: the change of SSID not change IP's of clients.
Could anyone explain and help?
Technical devices: AP: TP-LINK TL-WR841R Server WAMP v. 3.0.6 on a Toshiba Laptop Android Phone OS 7.1 OnePlus3
Check Windows firewall profile. It might classify the network with the other SSID as Public and ports are not opened?