Hi everyone,
Please note the solutions reported by other users for BT Smart Hub 2 and BT Smart Hub.
By all indications, British Telecom does implement carrier-grade NAT widely outside of their retail packages due to an IPv4 ISP shortage. Not all users are behind the carrier-grade NAT layer, however, as we’ve encountered during testing. Independent solutions will vary widely depending on additional routers used, but most BT Smart Hub 1-3 users can resolve issues by trying the following steps:
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Toggling UPnP in the BT Smart Hub (1-3) web administration. Enable it if it’s not enabled. If it’s already enabled, please disable and reenable it for due diligence.
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Setting a manual port forwarding rule. The BT Smarthub series didn’t play well with automatic configuration during testing in a modem/router combo standalone setup. Some users resolved this by setting a manual port forwarding configuration using the port listed in the ARC tab.
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If the above steps don’t resolve your issue, the tech support team will be standing by to assist you. We’ll break your issue into a dedicated topic thread, where more of the Roon team and savvy users can see your networking details up-front.
Thank you for your patience, and we’ll hopefully resolve your issues shortly.