I switched from buying Netgear to TP-Link because I increasingly found Netgear routers to be unreliable.  Since switching to TP-Link, I've had no issues right up to the point I installed the latest firmware update via the router's automatic update option.  Now, I find that the 2.4ghz channel just drops for no obvious reason, checking the router status it still looks to be active.

The computers in the house are either hard wired or use the 5ghz wifi and seem to be unaffected, however the smart devices like my doorbell, amazon echo and kasa switches and lights all lose connection.  I did try activating the 'Smart Connect', but then when the issue re-occurred all non-wired connections were lost so I quickly backed that change out.

To try to mitigate this, I have modified the settings to use a specific channel (I chose 11) instead of Auto and to use 20mhz channel width instead of auto.  However, I should not have to try to manually tune the config to get a home network device to work, I should be able to just plug it in, set it up and then forget about it.

Is anybody else experiencing this issue?  Can firmware be rolled back?

Thanks