Hi, Recently purchased the Archer MR400 with an unlimited SMARTY SIM primarily for use with in my caravan for streaming movies etc. I set this up at home where is works remarkably well and is able to stream movies along with internet surfing. Unfortunately when I move the set-up to my caravan I have issues where the message "wifi connected, no internet" this problem is intermittent as when the connection is good I can stream from Netflix or Prime until the connection drops out again. 

I also used this set-up in a Holiday Inn where it worked well too.

Is there something in the caravan causing this signal to drop out?

Thanks in advance.