Just had my old Home Hub 5 replaced by the new Smart Hub, working fine for a couple of weeks, few latency spikes here and there but nothing major. For the last week now the connection has been unusable for anything slightly bandwidth intensive such as Streaming or Gaming.
In any online multiplayer games the ms will spike up to 1600ms multiple times a minute, same VoIP programs such as Teamspeak and Discord.
So far in my attempts to remedy this myself I have Split the Wireless bands, changed wireless channel countless times, disconnected all devices then tried only with my PC the problem still persists and I have also contacted BT Support and had my line reset seamingly having no effect on this end. struggling now with what to try next, any help would be appreciated!
Welcome to this user forum. @Feert
You would be better off going back to using your old home hub 5, as there are quite a few reported issues with the smart hub, especially wireless connections.
If you must stick with the smart hub, then use only Ethernet connections for best performance.
With regards to the old home hub 5, it was having similar problems if not worse and had been replaced multiple times so I'm reluctant to go back to that if I'm honest. This will have been 2nd smart hub now and pretty much the same thing has happened. after its setup it's fine for a few weeks then deteriorates rapidly.
Perhaps its errors on your phone line causing re-transmissions?
Is there any noise on your phone calls? Dial 17070 and select option 2, there should be no noise between the announcements.
Using the phone may have cleared any bad connection or noise that was affecting your broadband.