I assume you are connecting by wifi? A good booster would possibly help as would making a better wifi network in your home - several ways to do that. Or you could try powerline adapters - as long as the two devices are on the same electrical circuit or through the same consumer unit.
-------------------- Services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired 2 WiFi,) SH2 in modem mode with Airport Extreme Router. On VIVID200, Talk Anytime Phone, x2 Mobile SIM only iPhones.