I am using DECO XE75 WiFi to create a WiFi network for my manufacturing plant. Initially, I used 12 DECO XE75 to cover the entire factory with WiFi. However, the signal is sometimes very weak and cannot be used to access the Internet, so I added 2 more DECO XE75. However, the occasional internet outage still occurs. Since this is a manufacturing plant, even a short period of disconnection is not acceptable. Please help me to resolve this issue. (In addition to DECO XE75, the factory also uses other WiFi such as Buffalo, TPLink, but these WiFi are connected to a separate network and are not related to the DECO XE75 WiFi network.)