High latency every 7th ping(5 seconds). NetComm NF10W

[CrimsonWolf]

My NetComm NF10W is experiencing latency/ping spikes every roughly 5
seconds. During unending ping tests it occurs on exactly every 7th ping.

For future reference please know that I am an IT Systems Administrator and
Network Administrator.

I have performed a very large amount of troubleshooting on multiple
devices, internally and externally to the network, and have isolated the
issue to the NetComm NF10W.
I have performed a factory reset; the issue was still present.
I have also used a spare modem-router in its place and the issue is not
present.
The issue is present on WiFi or ethernet cable and occurs if I directly
ping the router or ping another device on the network.
I am 100% confident the issue is with the NF10W.

It should be noted that the NF10W works fine otherwise: download/upload
speeds (internet) and transfer speeds (local network) seem to be nearly
unaffected; but media that requires a constant connection (online gaming,
video conference hosting, etc) has a very noticeable 'lag spike' making
these extremely unpleasant to use or simply unusable.

Is there some default option or service in the router settings that causes
some sort of processing or data restriction every 5 seconds? It just seems
very odd to be faulty and affect the network precisely every 5 seconds. Anyone experience this?

If I don't have a solution soon I will have to return the item as it was
recently purchased.

 

[bill001g]

It has to be some kind of bug there really is nothing you can configure that will cause that. Maybe QoS but if you factory reset that would not be a issue.

You have to be somewhat careful about using ping/icmp for troubleshooting. This is considered a low priority thing. Network devices will delay processing of ping commands to pass actual data.

You may see something if you test on one of the jitter testing sites. Since this is data transfer it should not be the ICMP issue.

You could also load wireshark and capture a data transfer you can actually see the latency between the packets.

Still this is not something a device should do so I would think it was defective if it still does it even with the newest firmware.