Having problems with programme freezing on Formuler Z11 Max Pro. Have tried resolving with Broadband provider but no faults found. Info page shows good WiFi but low or no bars on signal strength. Have tried both WiFi streaming, ethernetand also Mobile phone hotspot. The display (Bars) show no different indication with only one or no bars. What is this telling me as watching TV is becoming very annoying? What can I do to help / correct the situation?