Can confirm I had this exact same issue yesterday with my Homebase 2 which I managed to rectify in the UK.
- BT Fibre 1000/150
- TP-Link X60 Mesh Router plugged into an Openreach Huawei 1 Port Modem ONT
- TP Link TL-SG108 8 Port Gigabit Desktop Switch.
- Samsung M31 smartphone running Android 11 (for setup)
Legacy equipment I had which was used in this fix
- BT Smart Hub 2 Modem Router (used only in Router Mode)
So, firstly, I can’t pinpoint exactly what I did to fix this, I just have a hunch out of the 30 mins of educated guesses I made that it was something firmware based that caused the initial issue.
So I started by plugging the Homebase 2 into my TP Link Network switch, and the lights went from solid Red to Flashing Blue and wouldn’t go solid Blue, which subsequently meant that every time I went through the process in the Eufy app of adding said base, I got as far as the scanning the QR Code on the bottom of the base/Manually keying in the code and then continued to receive an error message that wouldn’t allow me to progress to the next step of clicking the Sync button on the back of the base.
I tried different ports on the network switch, going straight into my TP Link Router, tried swapping out Ethernet cables and repeating the QR Code scan/Manual code entry and nothing worked, even if I was optimistically repeating the process multiple times frantically to no avail.
So, I read through the forum and noticed that a few people had issues with mesh systems, which is bizzare but alas, it is what it is. I’d seen a comment saying that it had been patched on a more recent firmware upgrade, so I thought I could try my old, ISP supplied BT Router and see if I could get that online, update the firmware and we should be in action.
I connected the BT Smart Hub 2 up, logged into the router’s interface and changed the SSID and Password to the exact same as my TP Link router in the hope that when I swapped back that it would auto recognise the same details and transition back over seemlessly without any additional setup being required.
Low and behold, when plugged directly into the BT Smart Hub 2 (not via the Network switch into the BT Smart Hub 2), the Homebase 2 passed the QR Code section, I managed to click the sync button and the first thing it prompted was to search for the most recent Firmware, which is at the time of writing the system version is 184.108.40.206h and subsystem version is 220.127.116.11 and this downloaded onto the Hub right away.
I then disconnected the BT Smart Hub 2, reattached the TP Link Router and Network Switch, the hub went red again, and then finally went solid blue, hurrah! Furthermore, I then managed to connect my 2K battery Doorbell up straight away to the system - blissful.
I don’t know if this issue is something to do with the Homebase acting as a wireless signal repeater and essentially the mesh system saying ‘You can’t join the party, your name’s not on the list’, so you’re not getting in’. Maybe? Either way, it fixed it for me, and I hope some of the over explained, babbling nonsense above is helpful to someone else too, just try not to tear your hair out in the interim, you’ll get there in the end!