One laptop disconnects Wi-Fi on ALL devices
I have Arris TG2472 gateway with both of the 2.4 GHz and 5 GHz SSID's hidden. One laptop, from work, an HP EliteBook 1030 G4 Windows 1909 will randomly disconnect from 5 GHz WiFi and it takes down all devices that are connected to the 5 GHz SSID, including mobile phones too. First of all, how is it doing that, and why? I'm not administrator on this laptop, so my options are limited on what can be done to it. I cannot use the 2.4 GHz as it is congested with too much interference from other Wi-Fii networks. Some help would be great.
Thanks a lot