BCT test is failing on mac OS X Catalina

Hello,

I am using BCT v1.5.0 utility for the BCT test.

My BCT test is failing at ‘Initial probing’ subtest in ‘mDNS’ phase while running on mac OS X Catalina. The BCT test with same accessory run successfully on mac OS X Mojave. I compared the .pcap file of both the successful test on Mojave and unsuccessful test on Catalina.

I have found that MacBook on Catalina is sending “non required ARP queries” to some MAC address to which it was previously connected and is currently not in the network. The unwanted packet frequency is approx. 6 packets in 8 seconds.

On Mojave, there are no such unwanted packets sent by the MacBook.


Are these unwanted packets being the actual reason behind BCT test failure on Catalina???

If yes, how to avoid macbook on Catalina sending those packets so that I can successfully pass the BCT test???


I have attached link of screenshot Wireshark log of the BCT test on Catalina for reference below.

https://i.imgur.com/8kHaOL5.jpg

As shown in the screenshot, the packet number 3831, 3834, 3835, 3837, 3840, 3845 are the unwanted packets sent by MacBook which are not required.

The link of unwanted packet details can be seen in below image.

https://i.imgur.com/fZNxnLM.jpg