Hi guys,
I will try to make it quick. Also my question is not so important because its a home UTM, mainly for fun since I also have a Cisco router, and only a few things doesn't work at the moment, but maybe someone encountered this problem. So, I had a few Sophos ASG running smoothly since a year, never updated running 9.601 and updated pattern weekly. Also had IDS and web filtering running, country blocking and a few other features, all working pretty well. Lately I choose to update my home utm from 9.601 to 9.605-1. Here the problem begin. All the process of updating go smoothly but after the update, packet lost, disconnect. So I suspected that I may have a problem with updating from 9.601 to 9.605-1. So I completely reinstalled the Sophos UTM to version 9.605 (since is didn't keep my original ASG iso). I only changed the default MTU to 1500 in shell since a bug (or its intend this way) prevent to keep the changed MTU setting for my cable internet connection (by default, the UTM put a 576 MTU on my internet connection). I reinstalled without restoring any backup and I haven't activate any new feature, just the standard firewall, web browsing and with one simple added rule, my computer, any, any, so I don't have a problem for my test.
All worked nicely, but one things is not working !!! Playing World of Tank !!! I play and after a few second, randomly, my ping go to 600-700 ms and the game freeze for a few moment and resume, so you can imagine its not great for playing an online Game like World of Tank. So I suspected a lot of thing (I work in computer storage, so I have good basic in networking, so I have tried a great number of things, but i didn't find my problem) ... anyway mainly, here what I tried :
- I suspected, my ISP, but when I switch to a standard, cheap Asus router, the problem doesn't show up ! All is working perfectly fine for extended period !
- I suspected my hardware, so I try swapping my Intel Network Card (a quad port E1000 IBM intel card), and reinstall with version 9.601 (kindly sent to me by a forum member), did the same with version 9.605-1. Also try the same process with the integrated Intel card(Intel I217 LM) and another Intel 82574L Card ! Same issue !
- So I suspected that the UTM had change, so I tried the Sophos XG firewall, last available version, same problem ! So again, I suspected my hardware, but again, when I install something else it's working...
- I changed the MTU based on what MTUroute give me with a standard Asus or Cisco Router, same issue !
So I begin to be short of idea ! Next, I will try to install UTM V 9.5xx to 9.6xx.
Have you encountered this weird problem with your UTM and World of tank (or any other online game) ?
Thank :) !
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