Wired transmission is fast, WIFI speed is slower than wired.
1. WiFi signal congestion
When the user accesses the network through WiFi, it is actually like listening to the radio station, using a fixed frequency wireless band, so how many similar signal transmission and receiving devices are around the user's area will have much impact on the experience of using WiFi.
Even if the WiFi signal bar on your phone is full, the actual WiFi signal may be very slow, and including mobile phones, cordless phones, microwave Shanghai, Bluetooth devices and even wireless baby monitoring devices may affect the quality of WiFi signal.
2. The device cannot send and receive data at the same time
Because WiFi signals cannot send and receive data at the same time, this makes this network access method will produce more data delays than other methods. Moreover, many people using the same WiFi channel at the same time will also greatly affect the signal strength of WiFi.
3. Birth defects
No matter how much WiFi technology improves in the future, it will be difficult for wireless connections to surpass existing wired Internet access models.
WiFi won't completely replace a wired Internet connection, it's just a more convenient networking solution.
4. Background work
If your WiFi speed doesn't improve even after controlling for all of these factors, check to see if your software is automatically syncing your data and photos. In fact, applications such as Steam, Netflix, and BitTorrent all transfer files in the background, which greatly affects users' WiFi speeds. And because most of these apps work quietly in the background, many users don't even remember they exist.
5. Router location
The location of the wireless router has a large impact on signal strength. For example, if you place your router next to a concrete wall, its signal strength will be greatly reduced. If possible, the best place for a router is on the ceiling right in the middle of the room (of course, many consumers don't have this condition).
6. Connect device differences
Don't be surprised if your iPhone 3G WiFi connection isn't as fast as the iPhone 6's, because WiFi connection speed also has a lot to do with the information processing speed of the connected device.
Solutions to wifi interference:
Replace the 5Ghz dual-band wireless router
5Ghz dual-band wireless router is just the hype of the business, in fact, one of the important reasons for the emergence of higher frequency and higher bandwidth IEEE 802.11n technology is to solve the problem of 2.4G band congestion. 802.11n can work in the 5Ghz band, the high band has a higher bandwidth capacity, can accommodate more devices at the same time and not easy to interfere with each other, and the current amount of equipment is much less than 2.4G.
2. 5Ghz dual-band wireless router
5G WiFi dual-band wireless router can not only solve the problem of channel congestion and insufficient bandwidth, but also the data transmission speed is an order of magnitude faster than 2.4G, and the speed performance is much stronger, so it is recommended that you replace it. However, 5G wireless routers also have its disadvantages: high band signal attenuation. In other words, its coverage and wall penetration capability should theoretically be slightly worse than 2.4G. And in addition to the router, your phone, computer, or other device needs to support the 5Ghz band in order to search for and connect to a 5Ghz WiFi hotspot.