Hello, first time posting here so I hope it is in the right place. My father has recently upgraded his unlimited 4g data sim only plan to 5g which we are using in our sim card router (TP Link Archer M400 3G/4G), however upon upgrading we instantly lost connection. It is like the router is not compatible/cannot receive a connection from 5g LTE however upon Googling for some answers others are saying that it should still work but we would not benefit from a 5g connection (obviously). Has anyone experinenced the same thing? Or can anyone give any further information?
Thank you
