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Poor speeds on UTM 9 SG210

Loudsy

Hi,

We have a wireless solution which we've taken over (did not install ourselves), and we're noticing poor speeds off most APs. All APs are AP55C and there are 9 APs in total.

It's got 9.407-3 firmware installed.

All switches are HP 1920G switches. Switch 1 connects to the Sophos controller via a link aggregation group utilising 4 ethernet links. Switch 1 also has a fiber link to Switch 2,3 and 4. Switch 1,2,3 and 4 have at least 1 AP connected to them. 

The MTU on the SSID in question is set to 1500.

Now to the problem, what we're seeing is that most APs are only allowing a total of around 100Mbps. I tried copying a file from the server to my macbook pro, and I got about 9MBps as a peak. If two computers are side by side and we try to copy files locally, each of us run at around 3-4MBps. I also notice that if I'm pinging some of the APs whilst copying these files, I get a time out every 30 or so seconds.

Is this normal? is there anything we can do?

Thanks for reading

 



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  • 0

    Hi,

     I would suspect from your description that the ports are all rate limited to 100mb/s.

    Also your LAG might have conflicts between the UTM and switch. Check the logs on both devices.

  • 0 in reply to rfcat_vk

    Thanks for both your responses.

     

    We don't usually deal with LAGs as we haven't needed to. I've had a look, and the LAG has been setup on the Sophos but not the switch! I've set that up now and traffic is flowing. 

    Would that be go hand in hand with the issues we've been experiencing do you think? I'm not onsite so I can't test properly. Thanks.

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  • 0 in reply to rfcat_vk

    Thanks for both your responses.

     

    We don't usually deal with LAGs as we haven't needed to. I've had a look, and the LAG has been setup on the Sophos but not the switch! I've set that up now and traffic is flowing. 

    Would that be go hand in hand with the issues we've been experiencing do you think? I'm not onsite so I can't test properly. Thanks.

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