This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Endpoint slow down internet speed

Hello,

We got a dedicated optical fiber 1gb Down/up .

With the endpoint installed, the speed download seems to be block around around 150 to 300 mb/s. Upload is correct.

IF i uninstall it, then the speed go back to normal with around 900 mb/s. Tests are made through NPERF. 

I tried a to play with settings on sophos central but none of them seems to make it work normally.

Does someone experiencing this issue or does know how to fix it ?


Note: Please see the following Blog Post for the latest update regarding this issue



This thread was automatically locked due to age.
  • I'm also experiencing the same issues with a dedicated 1 GIG internet connection.  if i disable Network Threat protection speeds are 800 d 800 u.  When the setting is on like 100 d 600 u.  Whats the fix ?

  • im using speedtest.net - which I heard is more accurate than Fast.com. Fast.com gives a much higher value. 

    On Speedtes.com  I tested two machines on the same home network ethernet port. One was 200mbs, one was 50mbs . 

  • Hello, out of interest, how do you check the speed?  Do you use a specific site or app?

    For example, what does Internet Speed Test | Fast.com give you in the way of results with and without the internet scanning and web control feature on? Essentially if the process SophosNetFilter.exe is running or is not running. 

    If SophosNetFilter.exe process is running, at least one of the web protection/control features is active.  If it's not running, then all web protection/control is off. 

    Additionally, download reputation feature can still be on, that is a scan post download for browsers that support IOfficeAntiVirus interfaces, such as Chrome, Edge but not Firefox.

    Also, do you have SSL/TLS decryption of HTTPS websites enabled or disabled?

    To check on the endpoint, the value of https_decrypt_enabled under the key:

    HKEY_LOCAL_MACHINE\SOFTWARE\Sophos\Management\Policy\ThreatProtection\[latest]\web_protection

    will be 1 to be enabled and 0 to be disabled.

    Thanks.

  • same issue here.... 200mbs download reduced to 50mbs, but upload is not effected

  • can this issue be fixed just by logging a case? 

  • Having the same issue also with NTP.  Taking 1gb service down to 100-150mb.

  • Hello, out of interest, how do you check the speed?  Do you use a specific site or app?

    For example, what does Internet Speed Test | Fast.com give you in the way of results with and without the internet scanning and web control feature on? Essentially if the process SophosNetFilter.exe is running or is not running. 

    If SophosNetFilter.exe process is running, at least one of the web protection/control features is active.  If it's not running, then all web protection/control is off. 

    Additionally, download reputation feature can still be on, that is a scan post download for browsers that support IOfficeAntiVirus interfaces, such as Chrome, Edge but not Firefox.

    Also, do you have SSL/TLS decryption of HTTPS websites enabled or disabled?

    To check on the endpoint, the value of https_decrypt_enabled under the key:

    HKEY_LOCAL_MACHINE\SOFTWARE\Sophos\Management\Policy\ThreatProtection\[latest]\web_protection

    will be 1 to be enabled and 0 to be disabled.

    Thanks.

  • same problem here guys... no solution provided at moment by Sophos... just a message asking to open one more ticket...frustrating. almost 1000 devices afected.

  • I'm also getting the same issue, how can we resolve this permanently, without compromising on security?

    Speed is reduced to around 300, if "Internet" from Real Time Scanning is disabled, then the speed increases to over 900 on a 1gb LL.

  • Having same issue, 1GB service getting 200, Disable Sophos and speed increase to 974. Please advise