Hello Tp-Link community 

I hope your all doing well 

I am currently facing and issue with my router 

It suddenly stop connecting to 4G even though it's still available 

I made sure it's not on 3G only but when I go with 4G only it disconnects even though it's available 

I Inserted the Sim into my device and 4G does work but when I return it to the router it goes back to 3G

May I please get help on how I can fix this