Hi!

I connected to a gigabit speed internet yesterday after having a slower connection, and I needed a new router which can handle this speed, so I purchased an AX10. In general, it's working fine, but I've noticed a few things (which might not be an issue because of the router, but I'm not sure).

First of all, let me show how my home network is set up:

Provider modem --> Router --> cat5e                --> Tenda gigabit switch (non manageable) --> Smart TV
                                                                          --> Tenda gigabit switch (non manageable) --> HTPC (1 issue)

                           --> cat5e   --> desktop PC (works fine)
                           --> cat5e   --> docking station  --> laptop (haven't tested yet)

                           --> wifi       --> repeater            --> wifi bridge --> NVR (works fine)

                           --> wifi       --> repeater            --> random stuff connecting if necessary (seems to be working fine)

                           --> wifi       --> random stuff connecting
 

All the devices have static IPs set up, IPv6 is disabled. I have the guest network set up (both 2,4GH and 5GH, and I have OFDMA + Smart connect enabled.

1. The first thing is, that the 2,4 GH wifi connection seems unreliable. Phones connecting to 5GH are fine, speed is great, and the connection is always reliable, it reacts fast. But for instance my phone (Xiaomi MI A2 Lite - Android 10 with latest security patch) is connecting to 2,4GH, and the speed is fine for me (~120mpbs/105mbps), but the connection is not reliable. For example when I open a webpage, or just do a Google search, I can see the progress bar starts progressing, then just stops, like I have no connection. If I wait, sometimes, it loads, but sometimes it doesn't, and I have to reload. Same happening inside apps that are using internet, like Aliexpress, Amazon etc. When I do a speed test, sometimes it says I have no internet connection, 3 out of 5 times.
I have a wireless repeater, but the phone is connecting directly to the router (it happens even if it's 1 meters from the router). With my previous router / connection, I didn't have this issue, not even when the phone was connecting to the repeater.

2. Internet on the HTPC. In general, it's fine, but If I do a speed test on speedtest.net, the connection drops. Same happens sometimes when I download bigger files. for instance a 1GB test file. I'm not sure if it's the router, but this didn't happen before either.

Edit: After posting this, I reverted my eth adapter's driver to the one the manufacturer offers (from the Windows one), and now the issue isn't happening anymore.
Edit #2: My phone should be able to connect to 5GHZ wifi
Edit #3: It does, after disabling the smart connect in the router settings, and setting 5GHZ channel to 36 instead of auto (and turning smart connect back on), the phone connected to 5GHZ. but doing the same thing so I will reset it.. Guess that was all, it's not happening because of the router.
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Thanks in advance for any advice!