Why can you actually print from a PC (LAN cable) to a 2.4 GHz WLAN printer, but not from a 5 GHz laptop to a 2.4 GHz printer? Doesn't both go first to the router and then to the printer?
But it is not possible to use "WLAN direct", which is a point-to-point connection. The printer must be connected to the router, i.e. Normal Wi-Fi
Right, both devices (laptop and printer) talk to the router, they don't talk to each other directly. The WLAN frequency band should therefore not play a role. There may be a setting in the wireless router that prevents clients in the 5 GHz network from communicating with other clients.
Praise, that's the right answer
the printer should be set up as a network printer and NOT be used with Wi-Fi direct. Of course, it is even more perfect if the printer is connected to the router with a LAN cable, which then offers maximum printer speed (even when printing wirelessly from smartphones and co…).
I have set that so far:
Both WLAN frequencies activated in the router
Laptop connected to 5.0 GHz
Printer connected with 2.4 GHz (can't 5.0 GHz)
Driver installed (doesn't matter which frequency you use)
You can't receive a radio station broadcasting on 800 kHz if you have the radio tuned to 1400 kHz. Reception and transmission frequency must match. So it doesn't work.
What does radio have to do with the wireless printer?
You did not understand. That was a comparison. If you have a laptop with 5 GHz transmission frequency, a 2.4 GHz printer can't receive the signal
These are radio frequencies there are many different radio frequencies. Whether radio or WLAN or Bluetooth or cellular smartphone… They are all different.
Communication is only possible if the transmitter and receiver are set to the same radio frequency (called channel), otherwise not.
Radio frequencies? 800kHz, 1400kHz, 2.4 GHz, 5 GHz, …
That is something completely different. The router forwards this to the printer in the correct frequency range, that is the job of a router.
the laptop isn't directly connected to the printer - that wouldn't work anyway.
Yes, I already know that.
only what wolfrein wrote here has nothing to do with the question. Since the router takes over the forwarding.
But the first question is why he can't print from the cable, from the router he can
The lan cable is also connected to the router… That's how I understand it.
My advice, you asked:
Doesn't both go first to the router and then to the printer?
My answer, YES, if you do it right, that's exactly how it is.
The main thing is not to use the guest Wi-Fi, it will be isolated from other devices.
And you don't use Wi-Fi direct on the printer
And you have set in the router that the devices can see each other.
And you have NOT plugged in the printer's USB cable, because network printers should never be connected to a USB cable (that's why there's LAN or WLAN on the printer)
And you have reserved the IP address of the printer in the router, so after a few days the printer is supposedly offline even though it is online (delete printer in Windows and then add a new printer… Search in the network… Is the solution).
Print out the test page directly from the printer menu, there's the IP address of the network printer on it.
Enter this IP address in the browser as a web address, you will keep track of what else is adjustable.
That is to be assumed.
If you have a Fritzbox: Under WLAN> Security there's a setting:
The active WLAN devices shown below are allowed to communicate with each other
The check mark must be set. Other routers may have a similar setting. Try also to connect the laptop to 2.4 GHz.
I was only concerned with whether a 5 GHz device would work on a 2.4 GHz printer. My level of knowledge was that it is not possible, but I was taught better, thank you!
Thank you for the helpful answers. That reassures me that the frequencies don't matter (in terms of printing and 2.4 and 5 GHz) :)
I'll look at the router settings.
Please never connect the printer twice with LAN + WLAN.
the lan cable is also connected to the router
If the printer is connected to the router with a LAN cable (do not use the guest LAN4 port) (LAN1,2,3), then neither USB cables nor WLAN may be used on the printer. So turn off the Wi-Fi on the printer if you can use a LAN cable.
Your LAN cable on the printer manages 1000 Mbit / s, what else do you want with the wobbly lame WLAN (~ 60 Mbit / s) on the printer. Turn the printer's wireless network OFF and you'll be fine.
Print out the test page, there's the IP address (192.168.xx.yy) of the printer on it, enter this IP address in the browser as the web address, then you can set everything properly and comfortably on the configuration page of the printer (YES, the network printer has a configuration page similar to a router).
The PC is connected to the router via LAN and the printer is ONLY set up over 2.4 GHz. I have probably expressed myself awkwardly.
Everything else was known to me so far, thank you.
Make sure that the printer and router have a direct LAN or WLAN connection to the router.
If the PC and printer are in the same room and you only have 1 LAN socket that leads to the router, then use a LAN switch (= is like a distribution socket for LAN), then you have the perfect printer connection.
And leave the WLAN to the devices that actually do gymnastics around the apartment while on the move. A printer or PC is fixed in one place, so LAN is the professional solution.
Here e.g. A LAN switch:
My PC is at the other end of the apartment via DLAN.
Router and printer are in the living room, but on opposite sides. Laying cables is out of the question because of my girlfriend.
