The Internet access speed of a local area network is slow, and a large number of broadcast packets were found in the test. What may cause this problem?

There are two possibilities, one is ARP attack (some viruses, so-called network management software, etc. ) in the intranet, this will produce a large number of ARP packets. There is also a broadcast storm, which is caused by unreasonable division of network segments.

Judge for yourself. You can also use the "network health detection plug-in" in WFilter, and you can know the reason after testing.