TP-Link TL-WR842N/ND stalls after a few 100MB download

I own a v1 and noticed similar issues with 4.9 or 4.14 kernels (18.06 and 19.07 releases) and the cause seems to be the lack of RAM see 4/32 Warning
Try my builds [Testing] lede-17.01 security backports for 4/32 devices - is it the same?