Okay, can anyone explain me with as much detail as possible what exactly is the issue here? I initially reported back in October 2021 that I never experienced the issue with my DIR-882 A1 and that's still the case even nowadays, almost an year later. In all this time I've been running the snapshot builds (updated monthly -- currently running the September 5th, 2022 one).
My Wi-Fi settings are still the same from my previous post, but the list of 5 GHz clients connected to the DIR-882 changed a bit: three smartphones (Xperia X, Galaxy A71 and Galaxy S10e), one laptop (Intel Wi-Fi 6 AX201) and a Blu-ray player (Sony BDP-S6700 with 802.11abgn support -- no ac, aka Wi-Fi 5).
Although both 2.4 GHz and 5 GHz SSIDs are the same, the laptop is specifically configured to always prefer the 5 GHz band and even then I've never experienced the "Connected, no internet" many described here. The smartphones also keep connected to the 5 GHz 90% of the time since I live in a small apartment (enough to get full bars on the 5 GHz band in all rooms), they only switch to 2.4 GHz when I'm already out and relatively far from the router.
This time I'm including also the command line I use with the image builder and the extra packages I add to the snapshots, maybe something here helps identifying why I don't experience the issue:
make image PROFILE="dlink_dir-882-a1" PACKAGES="block-mount e2fsprogs ipset kmod-fs-ext4 kmod-usb-storage-uas libustream-openssl -libustream-wolfssl luci luci-app-samba4 luci-app-upnp wpad-basic-openssl -wpad-basic-wolfssl"
(I use libustream-openssl
and wpad-basic-openssl
instead of their default WolfSSL versions as a space saving measure, otherwise the resulting image is too big to fit on my DIR-882 -- Samba4 is the biggest package and requires OpenSSL anyway, can't switch to ksmbd because it doesn't work with Windows' File History, something I use extensively)
As already mentioned, USB 3.0 is known to cause interferences only on 2.4 GHz networks, 5 GHz networks are immune. Also, several routers have mitigated this problem either by shielding the USB 3.0 connector, by moving it away from the antennas, or by doing both (the case of DIR-882 and all other routers based on that same AP-MTKH7-002 board from SGE that includes USB 3.0 ports)...