Can’t connect ROON ARC with my BT Smarthub 3

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:

  1. 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.

  2. 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.

  3. 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.

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