So first to clarify my problem. Namely, since today we have a 50,000 line and all devices such. Mobile phones or laptops can also use this connection in full bandwidth.
EXCEPT MY PC!
I'm using an old NETGEAR WG111v3 Wireless-G USB Adapter for my PC, which only receives 25K from the 50K. Now I wanted to ask if I should buy a new one and if there's even one of the 50K or can use more. If not, would I have to switch to LAN?
PS: Do you have recommendations for internet sticks?
I recommend you switch to LAN. With Lan you have the fastest and most stable connection possible with the smallest ping. Simply lay a long LAN cable accordingly, you can also drill through a whole wall with a drill with a 30 cm long drill. That's what we did back then and since then perfect internet in the whole apartment.
Your old Wlan stick comes just times with 54mb / s clear. This one can do much more.
https://geizhals.eu/netgear-ac1200-dualband-wifi-a6210-100-a1186391.html?hloc=at&hloc=de&hloc=eu&hloc=pl&hloc=uk
That's really slow. 50k already managed my analog modem in the 90s.
You should exchange the thing (or familiarize yourself with units of measurement!).