Hi @prasadprachu, Welcome to the community!   There are different cause of Transfer/Speed Issue that you may experience.   Sync Speed Issue, this speed issue is caused by a line fault on TPG (If you're with ADSL2+ or TPG-FTTB) or NBN's network (If you're with NBN service). Affecting all device(s) LAN/Wireless connected to the modem/router this may require a real-time test and investigation by our Technicians and Engineers.   Wireless Transfer Rate Issue, this issue only affects the device(s) connected via Wi-Fi which can easily be fix by doing adjustment to the modem/router's settings.   Speed/Transfer Issues, this issue is caused by possible loose modem/router connection setup. This can be fixed by re-seating Ethernet cable if the device(s) is connected via LAN, re-seating the modem/router to the wall socket or changing the phone cable used from modem/router to the socket. Note: You will need to test multiple speed test when you change Ethernet,Phone Cable to identify the caused of speed issue.   In the event that you experience dropouts via Wireless/Wi-Fi connection we did an article that you may find helpful see links below.   Easy Steps to Improve Wi-Fi Connection In Your Home Wireless Channel on your modem - what is it and why should I change it?   In your case we've seen that that there has been a degradation to the sync speed of the modem/router, this can be solve by the following troubleshooting below. Re-seating Phone Cable of the modem/router going to the wall socket Changing a different phone cable ( If available ) Isolating the modem/router ( If a Filter/Spliter is used) Cleaning the phone port socket ( Make sure to clean the corroded area ) Let us knowhow it will go. Cheers! ... View more