I heard you can use
aluminum foil and a salad bowl.I that like true and are thier any other ways using materials around thhe house.You can use a Pringles can, called a cantennaMore conventional methods include: reposition your router (or access point) to avoid obstructions and radio interferenceBoth reduce the range of WiFi network equipmentCommon sources of interference in residences include brick or plaster walls, microwave ovens, and cordless phonesAdditionally, consider changing the WiFi channel number on your equipment to avoid interference upgrade the antenna on your router (or access point)WiFi antennas on most wireless base stations can be removed and replaced with more powerful ones add another access point (or router)Large residences typically require no more than two APs, whereas businesses may employ dozens of APsIn a home, this option requires connecting your primary wireless router (access point) to the second one with Ethernet cable; home wireless routers and/or APs don\'t normally communicate with each other directly add a bi-directional WiFi signal amplifier to wireless devices as neededA WiFi signal amplifier (sometimes called signal booster) attaches to a router, access point or Wi-Fi client at the place where the antenna connectsBi-directional antennas amplify the wireless signal in both transmit and receive directionsThese should be used as WiFi transmissions are two-way radio communications add a WiFi repeaterA wireless repeater is a stand-alone unit positioned within range of a wireless router (access point)Repeaters (sometimes called range expanders) serve as a two-way relay station for WiFi signalsClients too far away from the original router / AP can instead associate with the WLAN through the repeater.Other related question