Can you connect on ethernet cable for the duration of the teams meetings? Long runs of Cat5e/6 cable are cheap and you can just plut it in to the Hub and your device and trail the cable over carpet upstairs etc. When the meeting is done, just rollit up and put it in a cupboard till next time.
If that works ok - look into running the cable permanently or improving you wifi with your own better quality equipment
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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.