FRITZ!WLAN Stick AC 430 MU-MIMO Service - Knowledge Base

FRITZ!WLAN Stick AC 430 MU-MIMO Service

What is a wireless repeater and what is the optimal way to use it?

You can use a wireless repeater like the FRITZ!Repeater to increase the range of your Wi-Fi network. For this purpose, the wireless repeater is connected to the Wi-Fi network of a wireless router, such as the FRITZ!Box, and then it makes its own additional Wi-Fi network available through which wireless devices can access your home network. Thus, the signal of the existing Wi-Fi network is not amplified by the wireless repeater, it is repeated.

To achieve optimal results when increasing the range, you should consider the existing infrastructure when choosing the wireless repeater and follow a few principles when positioning it. In this guide, we would like to help you to choose the right wireless repeater for your home network.

Can I use any wireless repeater with my wireless router?

Pure wireless repeaters like the FRITZ!Repeater use the "Universal Repeater Mode" procedure and behave like conventional wireless devices towards wireless routers. This means that this type of wireless repeater can be used with all standard wireless routers.

Some wireless routers can also be used as wireless repeaters. However, wireless routers usually use manufacturer-specific methods, which is why they often can only be used as wireless repeaters with routers from the same manufacturer.

Can I use more than one wireless repeater?

Yes, it is possible to use more than one wireless repeater. They can either be connected directly with the wireless router to increase the range in different directions, or they can be connected with each other (Wi-Fi cascading) to increase the range in a particular direction. Current FRITZ! products with Wi-Fi functionality that support Mesh can be cascaded as Mesh Repeaters.

Does a wireless repeater reduce the Wi-Fi speed?

That is not always the case. With most wireless repeaters, the bandwidth for wireless devices is halved because they only have a single transmitter and receiver unit (wireless radio unit), which means that they cannot both send and receive at the same time. For example, while the wireless repeater is receiving a data package from a wireless device, it cannot forward it to the wireless router immediately and must wait until it has received the entire data packet from the wireless device.

This is different with wireless repeaters that have several wireless radio units. For example, the FRITZ!Repeater 3000 has three radio units and uses one of them exclusively to communicate with the wireless router. The FRITZ!Repeater 2400 has two radio units and, when used with a wireless router that also has two wireless radio units, for example the FRITZ!Box 7590, it can use crossband repeating which transmits data without waiting.

What is crossband repeating and how does it work?

Crossband repeating is a procedure where the wireless repeater and wireless router are connected over one particular frequency band, while wireless devices connect with the wireless repeater's other frequency band.

For example, if a wireless device is connected to a wireless repeater via the 5 GHz frequency band, the wireless repeater uses the 2.4 GHz frequency band for the connection to the wireless router. There is no loss of speed because a separate transmitter and receiver unit is used for each frequency band, so data packets can be forwarded continuously.

The FRITZ!Repeater goes one step further; in addition to the crossband repeating procedure, it can flexibly select the frequency band for the connection between the wireless repeater and wireless router so that the best setting is automatically selected for the current transmission situation.

Where should I position a wireless repeater?

If the wireless repeater is connected to the wireless router via Wi-Fi, it must be located within the range of the Wi-Fi network so that the two Wi-Fi networks overlap. Since the wireless repeater is connected with the wireless router's Wi-Fi network, it must be positioned where the quality of the router's Wi-Fi signal is good. If the wireless router and wireless repeater also use the same Wi-Fi settings, wireless devices can register with the Wi-Fi network with the best signal strength, with virtually no interruptions. Switching between both Wi-Fi networks is called roaming.

The ideal location for the repeater is a place where there are as few obstacles as possible between it, the wireless router, and other wireless devices. Especially metallic objects or objects containing water, such as radiators, refrigerators, or even houseplants, significantly reduce the quality of the Wi-Fi signal. A wireless repeater should also be positioned away from other radio transmitters such as microwaves, baby monitors, wireless speakers, or Bluetooth devices.

Many wireless repeaters also have a LAN port, for example the FRITZ!Repeater 1750E. The LAN port allows the wireless repeater to also be placed outside the Wi-Fi range of the wireless router. This way, wireless devices can gain Wi-Fi access to the home network even at a great distance from the wireless router. For the connection between the wireless repeater and wireless router, you can use a LAN cable up to 100 meters long, or you can also use powerline adapters, such as FRITZ!Powerline.

The new FRITZ!Repeater generation