Q: Airdrop for MBP(2015) not working when connected to a specific network

So this is what I have

IPHONE6             IOS 9.2 BETA

IPAD 2                 IOS 9.2 BETA

MBP2015             EL CAPITAN BETA

AIRDROP was working before, this just started mid October.

This is the situation all devices are connected to network A, I can use airdrop from iphone to ipad and vice versa, but can’t use nor detect the airdrop via mbp.

When switched the mbp to a different network I was able to use the airdrop to both iphone and ipad and vice versa. Im not sure if I have a setting that needs to be change and all.

This only occurs when mbp is connected to network A. handoff is working just fine.

This are the things I tried:

1) I have tried to mirror the settings of network A and network B, but still no change.

2) I also tried forgetting the network A and reconnecting it as well.

3) deleted the/Library/Preferences/com.apple.Bluetooth.plist

4) downgraded to el capitan from beta, did not change anything.

Any help will  do.

Thank you,