Configuring TP Link TL-WR841N with Huawei Echolite HG8546M for Stable WiFi on All Devices

Hello,
I have a big problem with my home network. I changed the signal from radio to optical fiber. I got a new Huawei Echolite HG8546M router from the supplier. It worked until the technician left. WiFi problems started later. Sometimes it worked on all devices, sometimes on selected devices. Generally, the provider ignored the problem without solving the problem (I think that Huawei has a whack WiFi, and they are not obliged to provide the signal via WiFi only via the cable) and telling me to connect the existing router to Huaweia. I connected the TP Link TL-WR841N via the LAN port (because earlier on the radio they changed the settings so that I do not go to WAN). Everything was fine until I bought an iPhone that caught WiFi once and not - all other devices worked great.
I wanted to change the settings, but I cannot get to the TP Link configuration panel in this configuration. I read somewhere that you need to reset it completely. I did it and now it turns out that I have neither access to it (I do not know the WiFi password on it), nor does WiFi work for me and I have to sit connected to Huaweia with a cable to have a network.

I am asking for help how to connect these two routers with each other so that everything works, how to configure it, how to get to the TP Link settings connected to Huaweia, etc. Should I connect the TP Link to Huaweia via WAN or via LAN.
I do not have access to Huaweia's settings because only the provider has them [/ B]

https://www.tp-link.com/pl/faq-417.html - configure as AP. Check if you have an address conflict between devices.

But how to get to TP LInka settings?
I type 192.168.1.1 or 192.168.1.0 and nothing.

Call the provider to put Huawei into bridge mode, and then connect TP-Link over WAN. I don't remember TP-Link's IP but maybe 192.168.0.1, or possibly tplinkwifi.net

Reset the TP-link to factory settings, then connect "only" to the TP-link and configure as in the guide. At the very end, you connect the devices.

I reset the TP Link, I connected my computer with a cable via LAN 2 and although I enter 192.168.1.1 or 192.168.0.1 or 192.168.1.0 I cannot connect to it. Every time I have a connection timeout.

Did you check if you got any address from the router's DHCP?

And how to do it? Sorry, but I'm not proficient at all of this.

Go to cmd and enter ipconfig.

This is what I have now

Added after 22 [minutes]:

Okay. I changed the network cable and it went. I changed and works WiFi again.
Now there is also a problem with the iPhone.

How do you have to set TP Link so that it does not disconnect the iPhone from WiFi?

Set the radio parameters on TP-link rigidly without AUTO (channel, bandwidth, security).

And what parameters should they be? In which tab?
Help the layman

Nestorb wrote:

And what parameters should they be? In which tab?
Help the layman

In the "WiFi Security" tab, WPA2 / AES / PSK should be displayed

In contrast, newer core devices have a few bugs (or sooner intentional non-compliance with the standard so that customers can push overpaid Apple network devices) in the implementation of the DHCP client. Due to these errors, Apple devices do not automatically obtain an IP address when connecting to the network. The solution for "ordinary" users is to enter the IP address manually or update the Huawei router software (it will not necessarily work, because not all manufacturers want to break their devices at Apple's dictation and deviate from the standards).

IC_Current wrote:

The solution for "normal" users is to enter the IP address manually or update the Huawei router firmware

The Huawei update is out of the question because the internet provider has access to it and they probably won't do it themselves. Besides, all devices take the WiFi signal only from TP Link. Should I set the IP address on TP Link? If so, where? What is this address? I have a fixed IP number assigned by the provider.

Nestorb wrote:

Therefore, all devices take the WiFi signal only from TP Link. Should I set the IP address on TP Link? If so, where?

A colleague spoke above about entering addresses permanently in the configuration of the phone or device from Apple (ip, mask, gateway and DNS).

Aaaaaaaaaaa. Ok. I will look at my phone right away and see if you can enter it anywhere.
Thanks