May I know how did you transfer the backup file? Use the 2.4GHz or 5GHz? Please show us a screenshot of the transferring page where you saw the transfer speed as well. --> the backup is done...

**Changes From Asus Router 87U to TP Link AC 4000 Problem Using this Resilio Sync Software for backup. Setup is from wifi to the desktop. (Basically nothing changes on my machines) transfer speed...

Regret buying this product. Was on Asus router and very satisfy until it ends it's life cycle. Now trying TP. Slowness and support in terms of firmware is bad. Sad.