Hi All,
I am running into one of those issues that is sort of generic which makes it difficult to troubleshoot. As such, any ideas or help from the community would be greatly appreciated!
At present, our network monitoring tools are sending simple ping tests to our remote sites which are connected via vpn. We are using an XG210 at our main location. our two remote locations are using an XG85W and a SonicWALL.
The monitoring tool is alerting us that the remote locations are going down several times per day, but for the most part they come back up in less than a minute. Usually, I don't even see the vpn tunnels rebuild in the logs due to how quckly it happens, although yesterday they lasted a bit longer. One of my vpn tunnels had to be brought back up manually.
I have worked a very thorough troubleshooting case with our ISP. All indicators show that clean statistics with no indicators of any trouble. So now I'm looking at the Sophos unit.
I am running constant pings to the lan interface of the Sophos and they are totally fine for several hours. During that same time period, ping tests to the internet gateway/next hop will drop a handful of ping attempts.
Generally, this would seem like an internet problem to me, but ISP troubleshooting has convinced me that something else is happening. And because the Sophos is so randomly buggy, I'm not convinced it isn't related to the XG.
A Sophos tech support case was opened, but the support engineer said its normal for a few pings to be lost over the course of a several hours.
At this point, I'm at a loss as to why our internet connectivity is being so randomly bouncy. Any ideas of things to investigate on the XG would be greatly appreciated!!!
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