I just got an Archer MR200 last week and I'm finding it very frustrating to work with. Every so often it stops connecting and shows no SIM found.
The SIM is not a problem as I've successfully connected to the Internet with both a Three and a Virgin card. The problem is the constant disconnections which it appears is a feature of this model.
Is there a firmware upgrade I can apply? It sounds like a known problem.
If any logs are required, please let me know where I can get hold of them.