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AP 15 slow download speed

Ben0583
Hi,

I'm using an UTM SG105w (Wi-Fi integrated, firmware 9.305) and have also attached an AP 15 to increase the range. Both are configured to the same WiFi network. The AP15 is connected with a CAT-7 cable (10 metres). This setup is working, roaming also works flawlessly.

When I'm connected to the AP from the UTM, I can download files at 40 MBit/s. When I'm connected to the AP 15, I can download the same file with only 1,5 MBit. 

We have got an UTM 220 (firmware 9.209) at work, and we have connected my AP 15 to this UTM. This time, clients that were connected to the AP 15 could download at full speed.

Why is the AP 15 so terribly slow when it is connected to the SG105w?

Best,
Ben


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  • 0
    To fix the wireless speed problem (you still need to leave MTU at below 1500 to get max speed):

    /sbin/ethtool -K wlan0 tso off


    Repeat for wlan1, etc. Must be done after every reboot until the fix arrives in 9.308.

    Cheers - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
Reply
  • 0
    To fix the wireless speed problem (you still need to leave MTU at below 1500 to get max speed):

    /sbin/ethtool -K wlan0 tso off


    Repeat for wlan1, etc. Must be done after every reboot until the fix arrives in 9.308.

    Cheers - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
Children
  • 0 in reply to BAlfson
    Hi Bob,

    To fix the wireless speed problem (you still need to leave MTU at below 1500 to get max speed):

    /sbin/ethtool -K wlan0 tso off


    Repeat for wlan1, etc.


    Thanks for the info [:)]

    So you set the MTU at 1450 with the above setting?

    What would be the different, if we just leave MTU at 1280 and don't use the ethtool, will it be slower?

    Have not found out why yet [;)]

    -----

    Best regards
    Martin

    Sophos XGS 2100 @ Home | Sophos v20 Technician

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