First time poster, I will try to be accurate.

Had my A7 for 2 months and it's connected to a ECI BT OpenReach modem and wireless speeds are OK.  Broadcast on 2.4 and 5 GhZ channel with a RE220 on the first floor as an extender.  Firmware is up to date on A7 and RE220.

However, a broadband speed test reveal packet loss of 45-50% and this results in any video conferencing freezing instantly on opening.  Zoom, Teams, Whats App, Messenger are all behaving the same and are unusable.  I am with Plusnet and the connection is PPPoE.  All devices are affected be it desktop, laptop or smartphone.

If I do a test on the mobile 4G network with my smartphone there is no loss, so it is definitely the router causing the issue. 

Any suggestions on what settings may be causing this?   Or has anyone experienced similar and has a fix?

Thanks in advance