Have you managed to connect via the hotspot SSID yet?
A router can support several public WAN IPs, as an example the static routers support up to 27. They would have different MAC addresses on the router and the Modem would associate the service stream with the MAC addresses. Thinkdiff
mentioned the BSSID is different for the OOLwi-fi see the link below on BSSID. The modem already associates a differdnt MAC with a different service flow for VOIP.
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www.juniper.net/techpubs ··· sid.htmlAll of this would be done in the config file, so I believe you are correct a reboot is required. If you can not connect the flows may not have been set up. If you can connect check via the Dslreports tool your public IP. See if it is different via the hotspot.
Whether wi-fi speeds would degrade would depend on the max bandwidth of the router.