ARP Content Changed

[Remah]

As you’ve said, GlassWire appears to be telling you that the wireless extender has replaced the router as the Internet gateway device.

Problems with the ARP cache have happened to other users but I haven’t seen your problem before.

Message "ARP table content changed"

Hey Together, One of our Customers have some Problems with their Network and some employee made some Tests on their one. The Problem is, that in different Times and different workplaces the Internet shuts down and the employees are not able to work at the Internet. After some minutes,or deaktivate and reactivate again the Network Adapter it works again. One of them used GlassWire and get a strange Message, when the Internet shuts down. A Windows opens and get the Message: ARP table Content …

I’ve heard of the same or similar problems from: a faulty cable or device; hardware incompatibility between the router and the extender - a quite common problem; a misconfigured network; and deliberate ARP cache poisoning:

Initially, you could confirm that GlassWire is only reporting that the Windows ARP cache has changed by running the Windows ARP command:

Network Administration: ARP Command - dummies

Then you could confirm that the router ARP cache matches the Windows ARP cache. The router ARP cache is usually called something like the MAC Address Table.

Let us know the results of such checks. Also, let us know if you resolve the issue.

If you are concerned that GlassWire is “contributing” to the issue then you could disable it or uninstall it and wait to see if your desktop still has connection problems.