Usually when you call Globe’s customer support for a slow or intermittent Internet connection, they usually will ask you to unplug your cable from the router/modem and restart the modem/router. They often won’t ask you to restart your computer.
Sometimes, they do work and sometimes they don’t.
When asked to this, I usually also restart my computer/devices and I get a higher percentage of getting back a good Internet connection rather than just restarting/refreshing the modem/router.
Just give it a try and let me know if it helps.