EE Fibre wifi speeds varying either 500 up 100down down to 10down and under 1 up

[service69]

Fibre broadband worked fine for a few months, now we can have either 500mbps down and 100mbps up or we have about 3-10mbps down and under 1mbps up, with ping varying from 7 to hundreds. The only thing I can see on the EE router login page is the connection type changing from FTTX to VDSL and back and forth constantly although I don't know if they correlate with anything. Sometimes I will have the 500mbps down and only 1 or 2 up and sometimes I will have 10-15mbps down and 90+mbps up. It's so random but making daily tasks difficult let alone playing any games/streaming. Unsure if it means anything but Ookla sometimes connects to Youfibre and other times a random local server which might mean fibre not working? any help is greatly appreciated.

[XRaySpeX]

You have Full Fibre presumably?

The router seems to be reporting it is switching between FTTP (Full Fibre) & FTTC (VDSL) which I don't believe is possible.

[service69]

solved! not sure on the logistics or how and why but we still had our old
FTTC connection and router plugged in and it must’ve been interfering in
some way with our mesh wifi system, unplugged that and all is golden.

[XRaySpeX]

Ach so! It is possible that way.