@Sanikovich I don't know the exact size you're asking for, but here's a video which could give you some ideas in this direction.

@Kevin_Z I believe that Archer C64 shoud be added to the OP list since its latest FW release:

@Barutchiev How about HomeShield - is there any configuration that you've made, especially here: If you did, then try disabling these to exclude that as a potential culprit. If that doesn't help as...

@hajfajv Reset the RE to its factory defaults. Here's the guide on how to configure RE in AP mode. Here's the RE user guide - details in Chapter 6. I would recommend when you have set up the RE in AP...

@Barutchiev A similar issue but with a different device was described here. Make sure your HomeCare feature is disabled (I believe this shuld be done via Tether app). Make sure that Device Isolation...

@Seed86 If your AX58 DHCP server is set to Auto then turn it off and test if there's an improvement. That's a known behaviour - read through this article for more details.