Hi, there are not that many experienced Pod users on the forum yet as the trial has only just ended - but if you hang on here one of them should be along soon and comment on what VM have told you about them.
TBH most people on here will tell you that the only way to guarantee improving your wifi is to just switch the Hub wifi off and get your own better quality stand alone equipment (not extenders/boosters/pods)
However, that said, you may have some other issue that is causing the problems that new wifi gear wont fix. Are you getting drops on connections or is it just speed fluctuations - or both. If drops - what happens on ethernet cable connected devices at the same time - do they drop too - and what do the various lights on the Hub show/do?
One thing to do first, do a quick check that all of your coax cable connections are in nice and "finger" tight - at the Hub and wall box and also at any connectors etc. Ensure there are no “unterminated cable loose ends. Disconnect all the connections and reconnect to be sure. Also check that the internal wiring is ok with no kinking or chaffing, check that all looks good with the outside cabling and wall box.
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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 +2 Airport Express's. On VIVID200, Talk Anytime Phone, x2 Mobile SIM only iPhones.