Discrepancy between downstream sync speed and actual speed.

Marc_Dob · ‎27-02-2023

Hello there,

my current speeds in smart hub settings are:

Downstream sync speed: 39.999 Mbps

Upstream sync speed: 9.999 Mbps

Upload works perfectly each time I test, however download speeds never exceed 35.6Mbps, that's via Ethernet cable with no other clients connected to hub and outside of "peak hours". Any idea what may be wrong? I have brand new hub can cables+microfilter. Clean windows install. Thanks in advance!

XRaySpeX · ‎27-02-2023

The difference is that the BB signal includes both the data which you measuring when you test & other TCP/IP overheads which are necessary for routing that data over the Net. You'll never get a data throughput greater than 95% of your sync rate on FTTC. That's why when you buy 40 Meg Fibre as you have the ISP is forced to advertise it as no more than 38 Meg.

If you think I helped please feel free to hit the "Thumbs Up" button below.

To phone EE CS: Dial Freephone +44 800 079 8586 - Option 1 for Mobile Phone & Mobile Broadband or Option 2 for Home Broadband & Home Phone

ISPs: 1999: Freeserve 48K Dial-Up > 2005: Wanadoo 1 Meg BB > 2007: Orange 2 Meg BB > 2008: Orange 8 Meg LLU > 2010: Orange 16 Meg LLU > 2011: Orange 20 Meg WBC > 2014: EE 20 Meg WBC > 2020: EE 40 Meg FTTC > 2022:EE 80 Meg FTTC SoGEA > 2025 EE 150 Meg FTTP

View solution in original post

XRaySpeX · ‎27-02-2023

The difference is that the BB signal includes both the data which you measuring when you test & other TCP/IP overheads which are necessary for routing that data over the Net. You'll never get a data throughput greater than 95% of your sync rate on FTTC. That's why when you buy 40 Meg Fibre as you have the ISP is forced to advertise it as no more than 38 Meg.

If you think I helped please feel free to hit the "Thumbs Up" button below.

To phone EE CS: Dial Freephone +44 800 079 8586 - Option 1 for Mobile Phone & Mobile Broadband or Option 2 for Home Broadband & Home Phone

ISPs: 1999: Freeserve 48K Dial-Up > 2005: Wanadoo 1 Meg BB > 2007: Orange 2 Meg BB > 2008: Orange 8 Meg LLU > 2010: Orange 16 Meg LLU > 2011: Orange 20 Meg WBC > 2014: EE 20 Meg WBC > 2020: EE 40 Meg FTTC > 2022:EE 80 Meg FTTC SoGEA > 2025 EE 150 Meg FTTP