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Limited WAN speed to 100 MBIT on Sophos home?

noviceiii

Dear all

First: thanks to Sophos for such an amazing home use product. I use it for years since early astaro.
Second: This, or at least similar questions, have been asked in this community. My apologies for bothering - but the answers weren't too clear (to me) on the topics I have found.

 

I here have a Sophos UTM 9.4x running. I have learned from the switch' logs, that the WAN port of the firewall is running on 100 Mbit. Its sure a 1000 Mbit switch and other connected devices receive 1000 mbits connections.
To summarize my investigations so far: I have tried out two different brands of network cards, switched the cards from LAN to WAN port, put it into another machine, installed ESXi now. Manually set the switch port speed to 1000 Mbit full duplex and now, on ESXi, set the vmci1 card speed to 1000 Mbit. And yes, exchanged the cable.

All in all: with all the different settings I always had a WAN bandwith of 100 Mbit.

I only have two possibilities left to consider:

a. the switch port has a defect

b. Sophos UTM home is limited to 100 Mbit WAN bandwith

 

To my question: is it so, that the WAN bandwith is limited?

 

Kind regards

Oliver

 

 

by the way:

why is the standard MTU value set to 1500? Isn't the common default value 1581?



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  • 0

    1500 is the correct MTU.  Are you sure the network card is gigabit capable?  The UTM is not limited in any physical way to 100mbps.  I run mine at gigabit with a 150mbps internet connection and it works at full speed.  Explicitly set your NIC to 1000-full duplex and see what happens (assuming it is a gigabit card).

  • 0

    To make it complete. I had to exchange one switch. An older one that obviously didn't cope with the longer network cable.

    Still facing limitations afterwards, It was IDP that limited the bandwith.
    After investigating a few options, the most speed increas came with:

    - IDP history to as low as possible (6 Months)
    - Disable all not used IDP pre-sets such as WebServer, MailServer (I don't have any)...

     

    Oliver

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