Gary is right you would be better investing in either.....
1) A Mesh System
2) A Wireless router
3) A Wireless access points
OR
4) A combination of the above
Depending on the distance, construction materials, obstructions, etc between your Hub and the wifi "blackspot(s)".
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John
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I do not work for VM. My 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.