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Only 20 Mbit/s behind UTM120 on a 200 Mbit/s cable line

Before I moved to Mainz (where "Kabel Deutschland" is the only cable provider) I lived in Frankfurt (where I was using "Unitymedia") where I "only" had a 25Mbit/s line. Now I have a 200 Mbit/s line (with 10 Mbit/s upload) from "Kabel Deutschland". I was performing a speed test and only got out 20 MBit/s download - upload was fine with 10MBit/s. When I connected my laptop directly to the KD modem I got what I am paying: 200 MBit/s download and 10 Mbit/s upload. Any ideas why the UTM120 (v5) is not giving through the full bandwith???

Speedtest behind UTM 120 v5

Speedtest directly connected to cable modem



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  • Depends on which features you are using.
    But generally, the UTM 120 is way to slwo for such fast speeds, esp. if you have IPS or web filtering turned on...

    ----------
    Sophos user, admin and reseller.
    Private Setup:

    • XG: HPE DL20 Gen9 (Core i3-7300, 8GB RAM, 120GB SSD) | XG 18.0 (Home License) with: Web Protection, Site-to-Site-VPN (IPSec, RED-Tunnel), Remote Access (SSL, HTML5)
    • UTM: 2 vCPUs, 2GB RAM, 50GB vHDD, 2 vNICs on vServer (KVM) | UTM 9.7 (Home License) with: Email Protection, Webserver Protection, RED-Tunnel (server)
  • My UTM120 (v5) has a 2GB RAM upgrade and usage is approx. 60%. Not using web filtering bcos it's too slow in the end. Only use IPS and have SMTP scanning enabled due to the fact that I use a Synology DS713+ with Zarafa as my email server. But will get a Sophos SG105w next days. Read that this model has a max RAM of 6GB. So will upgrade this one when I got it. Due to the fact that it has a newer CPU I assume that this one will performe better (?). Any experiences here so far from anyone? 20Mbit/s is not that bad - just sad if you download sth. So then I'd have to switch networks to have a fast download.
  • Solved it (in a way) myself when I got my new sg105w in the mail. I installed it yesterday and directly ran a speedtest which came up with full speed 200/20Mbit/s (down-/upload) as provied by the ISP. So it was the "old" utm120v5. The newer sg105w could manage it easily while the utm120v5 wasn't capable of handling that throughput. So guys ... don't bother a utm120v5 with more than 20-30 MBit/s. She can't handle it. ;-)