My Vodafone sim doesn't work in my portable router (TP-LINK M5250) but my previous sim (EE) did work on it so I know the router is good. Although the sim works on my phone with internet.
Both sims were 4G and I got 50GB data with most of it going to waste because it wont work in my portable router.
I really need this sorted since I have very little WiFi access myself due to current circumstances.