Why does wifi keep dropping out?

Question

Android

Good day! I was already tormented with the Internet on my Lenovo Tab M8 tablet. Android 9. The
router is an old Keentic Giga 2.
Wi-fi constantly disappears when I use the Internet, in particular when I watch youtube videos or other players. As a result, the players on the sites constantly talk about a broken connection. I watch 240 on youtube, which only says that it has more time to buffer and the inconsistency of wi-fi is imperceptible.
Android reset, the browser changed and checked without a browser, the salt is that, even downloading, the download manager, not downloading the video breaks. The local network on this android works fine. Video from the local computer to androyd broadcasts without loss (streaming).
I checked on an old android 4 phone, everything is fine. Route settings rummaged everywhere there is no protection or in the white lists of the tablet.

Maybe someone had similar problems?

Answer 1

How many more foreign networks are visible?
Which channels are more free?
PS use InSSIDer for analysis.

Answer 2

Hello.
- If there is a router firmware update available, update it, but before that, make a backup of the configuration.
- Standard set b/g/n if not so configured.
- Change the channel width and see which option will work more stably, i.e. first 20/40 MHz, then only 20 MHz, 40 MHz, if possible.
- As already advised, scan the network, find a relatively clean channel, set it fixed to this channel (it is advisable not to go beyond channel 11), as a result, if the "environment" is set to "auto", then "seeing" the busyness of this channel will not jump to him. A fixed channel is better if the air is full and the access points "automatically" jump back and forth, playing ping-pong with each other.
- Your router is most likely a Zyxel Keenetic Giga II (Keentic Giga did not find one), with a Wi-Fi access point 802.11n, 802.11n standard has an operating range of both 2.4 GHz and 5 GHz. If there is 5 GHz and your tablet supports this band, go for it.
- If, although unlikely, the Keenetic Giga II device has such a feature as "Captive Portal", disable it.
- Usually, when a network is hacked, they use the "moment" of authorization to "shove" between the device and the access point, "disconnect" so that when a new registration is "read" the necessary information, for this, increase the "level" of security, see paragraph below.
- It is possible that the "new" device is unhooked due to the "new" wireless network security requirements, to do this:
* get the hell out of WPS (if enabled),
* turn off weak encryption protocols WEP, WPA (if enabled),
* use only WPA2 + AES encryption (do not use TKIP),
* use a password that includes at least one lowercase letter, one letter uppercase, one character and one number, at least 8 characters, so that it is easy to remember for you personally, but difficult to predict (for example, Home $ 021 will NOT work)
If the problem is not solved after the above, we will poke further :).