Just an update to this post and i've finally made the time to update the firmware that was shared with me by TPLink Support team. I used > HB810v1 0.6.0 3.0.0 v6095.0 Build 240807 Rel.32707n.bin...

@Kenso88 oh dear. doesnt sound very good. but thanks for your feedback on this.

@Kenso88 having the same issue same network. following...