SGAB208426 and SGAC208426 have been made available for Full Release as of 22nd August 2023.
Changes since SGAB/C20832C:
Outstanding – Instability where 5 or more discs are connected via Ethernet cable will be fixed in the next release.
Important Upgrade advice for Premium Whole Home Wifi Customers:-
For those on an older version than 822C you will not be able to upgrade directly to 8426, therefore you will need to first update your discs to SGAB20822C before having access to any further updates, including this release. This can be done using the Firmware Update option in the Settings tab of the WHW app.
General upgrade advice:
If the new firmware is not working as you’d like, try powering off/on all the discs at the socket and allow them to reconnect and settle. If you still need help afterwards, come back to us, here on Community, or contact the Helpdesk on 0808 100 6116 or email email@example.com so that we understand your issue and help fix it.
I'm on this firmware but still having issues with the entire network going down which requires a reset to factory settings. How are other folk getting on? Definitely more stable than the previous version for me but far from perfect...
I’m running 7 discs, 3 via Ethernet to master and 3 on Wi-Fi. There’s the occasional disc reboot every few weeks which pretty much goes unnoticed. Otherwise it appears to be working well, and certainly the upgrade we’ve been looking forward to.
Perhaps you could share specific details of your setup, as much detail as possible so that other posters can compare.
If it helps: I’ve three Wi-Fi 6 discs, one is a master hosting the router connection, the other two are connected via Ethernet to the first using an unmanaged gigabit switch. Also four Premium discs, one via Ethernet to the switch and 3 via Wi-Fi. All other Ethernet devices are connected via a different managed switch to the router, they don’t share the Wi-Fi switch. PlusNet Hub Two router. Only around a dozen Wi-Fi devices at the moment. Otherwise using all default settings. I did however factory reset and upgrade firmware of all discs individually (I.e. power of all others) prior to setting up the mesh. I’ve never had to factory reset or reboot anything since, 2-3 months back when pre-released. Between 2-4 weeks, some discs reboot themselves occasionally, but we have power cuts where I live, so a high score uptime of much beyond a month tom6 weeks just isn’t achievable for me.
My own experiences of the Premium discs:
I own 4 Premium discs - originally two (shortly after they first came out) and later added two more. They were all purchased through the BT Shop. One of the first pair died at 10 months after purchase. After phoning the BT Shop - who passed me directly to BT support, the failed disc’s coloured light characteristics resulted in me being asked to return both discs and I had a brand new pair delivered within the week. I was impressed by the service. Since then, all has been well.
One disc is connected by ethernet to my (BT 6) router. I have a large old house with a lot of thick masonry internal walls so original WiFi had always been very patchy. The Premium discs solved that problem and I get excellent WiFi coverage throughout the house and in the garden. Downstairs is “L” shaped. The discs are in a star configuration and the longest disc to disc distance is nearly 40 feet. The 4 discs are all positioned so that the “sightlines” between them largely comprise lightweight structures such as doors or the odd bit of lath and plaster wall. Hence, the phone app tells me they all have “excellent” connections.
Apart from the master disc - router ethernet connection, I had never used the spare ethernet connectors. This changed, recently, when I connected one disc to the hub of a new Gigaset VOIP/DECT phone system; everything has functioned perfectly.
Living in rural Norfolk we often get short power outages, yet the discs always recover on their own. Two or three times each year I notice a random disc being “down” - showing a red light. A simple restart to that disc provides an instant recovery. In short, I have been very happy with the discs. I read of some other people’s difficulties and note it often seems to be the same names. Whilst they have my sympathy, I have always assumed they must be unlucky; on the other hand, are a few of them doing something unusual with their set-up which is not being revealed? NB I have always used the latest issued firmware – including the recent one.
We are still on an FTTC service but very lucky to be close to our local OR cabinet with just under 80:20 Mbps. No FTTP yet, but an “Alt Net” is on its way. I shall be leaving BT but will certainly continue with the Premium discs.
Here's my experience of the upgrade.
The previous release (20832C) was always stable for me, except using ethernet for backhaul. When I configured using ethernet backhaul, the system would be OK for a few hours and then would become progressively unstable and eventually the satellite disks would disconnect.
The auto, overnight upgrade didn't work. Some mornings the satellite disks would have disconnected and needed a restart. I forced a manual upgrade and this was successful. However the iPhone app was then intermittent in being able to get any status information and make config changes. Most of the time it was showing no discs and no devices. However the network map correctly showed the disc configuration. The web interface was OK, but very slow. In the logs, it was showing errors regarding duplicate entries for priority devices, which I fixed by disabling the priority feature. I left it in this state for a a few days and connected the satellite disks over ethernet. This actual wifi network worked well and was stable using ethernet backhaul.
I then did a full factory reset and re-configured using ethernet backhaul. This has resolved the issues I had with the iPhone app and slow web interface. So far the configuration with ethernet backhaul has been stable and good performance.
So in summary
For reference my setup is