windows node version is now 1.45 maybe something is off with how early it turns off ingress.
that stuff hasn’t been to well calibrated for a while, even tho it does seem to have gotten better.
but still
i would recommend updating to 1.45 and see if that fixes it.
always try to easiest solutions first 
and when ingress stops its almost always, that the node version is behind.
ofc you should make sure that your audit, suspension and online score is close to 100%
tho i guess if its been the same for 2 month’s it sounds really weird…
afaik / remember a node should get ingress unless if its suspended or behind in version.