Analysing networking/internet connectivity issue.

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I'm running an opnsense router, pihole and Asus AIMesh network with 4 access points. Recently (past couple of months max), we've been experiencing occasional drops in connectivity such that we have no internet across all devices for 20-30s.

I've installed pinginfoview and have been pinging google and my server (via internal IP) for the day, every 5s. Today we've had 7 failures, at random times with approx 1hr-1hr10m between them (no obvious pattern). I've now noticed, however, that my device is reporting failures to google and my server at the same time, which I'm thinking now precludes an opnsense/pihole issue and is pointing towards my AIMesh network being the problem.

I'm just about to try and find some log files for the primary node, until then I'd appreciate any advice for diagnosing the issue!
 
I think this answers all questions:

I have a network device hardwired to the primary AIMesh node via a secondary node (192.168.0.100 (Device) - 192.168.0.4 (secondary node) - 192.168.0.3 (primary node)). 192.168.0.3 is hard wired to 192.168.0.1 (opnsense router).

I get drops when I ping from the device to my server (X.X.X.225, hard wired to X.X.X.1) as well as google. At the same time. So the issue must be in the Asus device providing zero network traffic for short periods. Unfortunately, Asus logs are not very extensive and are not showing anything obvious at the time I have an issue....
 
I'll see if I can throw a diagram together....

In words:

Virgin modem -
opnsense -
primary AiMesh node -
second node -
fourth node
third node

Edit: struggling to format this. Primary node has second and third nodes hardwired, fourth node is of the second. All of this is hardwired.

It's fairly obvious that the primary node (or AiMesh) is the issue. I either need to find detailed logs on those devices or remove all the config and start again.
 
Last edited:
Logging will be basic at best I'd imagine, ASUS really isn't the one for being helpful when things go wrong.
There is another option but it's a touch more costly, replace. Second hand auction sites are alive with decent gear, just got to know what you're looking for and how you'll use it.
Replacement becomes an issue due to how Asus does obsolescence, compatible devices don't go down in value very quick.

I have a couple of unnecessary complications in my networking, so have a switch ordered to simplify a few connections. After that I'll flatten the AIMesh setup and start again with it. Last option is to remove the primary node and replace it with one of the other nodes to see if it's an issue with that device....
 
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