I am using Sophos at home and for my business. So, I normally test new versions (or releases) at home first. I have now installed XG at home. While I am still struggling with some RED site to site issues, I also noticed that it keeps dropping the internet from time to time altogether.
My environment at home consists of a small Intel based appliance that should be able to handle the job. Since my entire family are heavy internet users, we opted to go with Comcast Business for reliability and performance. Since we didn't like their modem, we replaced it with a Zoom modem. This environment has worked using UTM software for more than one year now.
From what I can see the modem is providing the external IP using DHCP to the Sophos XG. This mostly works, but it seems to fail if there is a DHCP renewal or other issue. Basically, I have to reset the modem at least once a day since replacing the UTM software with the XG software. I am not sure how the modem communicates a DHCP change to the firewall, but it seems that the UTM software had some extra logic to make this work better.
One difference I noticed is that the XG has a Gateway Name. I can't recall having that on the UTM software, but I am assuming that it is just a logical name used in the software and not something that is used to communicate with the modem. Is that correct? I have currently set that to Comcast.
Do other people see the same issue? Is there anything I can do to improve things? As it is right now, this might become a deal breaker and force me to downgrade again.
One thing I am looking into is that the XG is reporting the hardware interfaces as 100Mbit half-duplex where as I am pretty sure that they are 1GBit full-duplex. That said, I am not sure if observation is related to the issue above.
Any ideas how I can fix this? Thank you!
Cheers,
Jens
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