Reflexion will be End-of-life on March 31,2023. See Sophos Reflexion EoL FAQs to learn more.
Following a reboot of our servers, we are no longer able to access several internal and external services (VPN, telephony, User portal)
I am neither a network expert nor an advanced user of Sophos solutions, but I will gladly provide you with more information if needed.
We have been using Sophos UTM 9 for several years without any problems. However, all of a sudden, here is what I see and can already pass on as information:
I have tried to restart Sophos UTM several times with no results. The first few minutes everything works normally, then the telephony does not work anymore and the User Portal is inaccessible again. In the past, we have used the infrastructure several times without any problems.
All these problems are very sudden. I am aware that it is difficult for you to help me with this information, but I will gladly provide you with additional information if needed.
I think the reasons could be many things but I can't find any particular error in the UTM logs to help me correct the situation. If you have an idea of a problem that could make us suddenly face these issues I would be very grateful.
At your disposal,Thanks in advance
FYI > VPN Client log :
Assuming not a routing issue, what does the UTM system log show for around the same time period?
Some sort of disk failure/corruption?
Hello, thanks for your question.
The UTM system logs don't seem to log anything in particular except for this line which seems suspicious to me? She appeared a few times today
2023:03:16-11:31:29 vpn dns-resolver: DNS server failed to contact!
What do you think about that ?
Thanksfor your help
You might find these posts helpful:
DNS best practice
RE: [9.1]DNS server failed to contact!
VPN external and internal DNS requests