![]() ![]() Switch off WiFI adapter power saving mode.Possible solutions (b) to Problem 1: Turn off power saving modeįor each wireless adapter, switching off the power save mode looks different. In such a case, you should turn off the power saving mode. But if you try to access Raspberry Pi from the outside, it is not reachable. In the client mode, this does not matter because the WiFI adapter immediately goes back into operation during activity. They go after a certain period of inactivity in the power save mode. Some Wi-Fi adapters have a low power mode enabled by default. ![]() Possible cause (b) Problem 1: WiFI adapter in power-saving mode Then the WiFI adapter is supplied with power via this USB hub.Īlternatively, you can try to add the parameter “max_usb_current = 1” in the file “/boot/config.txt” in order to increase the permitted current consumption via the USB ports. Under certain circumstances, an active USB hub can also help. There are Wi-Fi adapters that simply draw too much power for a short time and are therefore completely unsuitable for Raspberry Pi. The problem described can be solved by another power supply. The problem of the WiFI adapter is that it briefly draws high current and the relevant power supply cannot deliver this and therefore the voltage breaks down and Raspberry Pi takes the USB port out of operation. If a WiFI adapter on Raspberry Pi seems to work basically, but occasionally fails and Raspberry Pi is then no longer available on the network, then this may be due to an inappropriate power supply.
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