Questions about AVM FRITZ!Box 3490

Dear Community I have been using the Fritz!Box 3490 for a few hours (as a simple access point via LAN1). Unfortunately, the UPLOAD speed via WLAN and LAN is a disaster (approx. 0.5 Mbit/s) -- DOWNLOAD is OK. (min. fibre optic, > 70 Mbit/s). Cable and connection are ruled out as faults (test of alternative router). Do you have any idea what else this could be? My fear is a technical error... Thank you and greetings

Can you tell me how I can connect the Fritz!Box 3490 to the Internet with an existing WLAN 5Ghz? From the Internet option only LAN is available and via repeater I cannot connect to a Netgear wifi.

ac are 1300mbit/s that means that with a fibre connection to the modem, I can connect the device to the modem and then have a connection of the 1Gbit/s that the fibre provides... correct? and what does 802,11 g/n mean 450mbit/s ?

Hello, can we connect this router directly to the fibre input (1Gb/s) of the flat without being limited in terms of speed?

Does this Fritzbox work with the UPC Connect Box in bridge mode? Can I then use DynDns and port forwarding?

What is the difference between the A/CH version and the International Edition?

Does the box have the necessary accessories to be able to connect it directly to a Reichle socket, or do I also have to buy a VDSL splitter/frequency filter?

Can I use this Fritzbox for my Swisscom fibre optic connection?

Is it true that the difference between the AVM 7490 and this router is the telephone function? I would like to use the router after the UPC Connect Box (in bridge mode)...

I read conflicting reviews about the 802.11ac performance. What speed do you get around 2m from it?

Is it also possible to switch the WLAN on and off remotely with the MyFRITZ!App?

Can this router be connected behind a cable modem ? Here the plough is for ADSL or ISDN, but can I connect the plough to my actuel modem ?