BE9300 MLO - WiFi clients on different bands cannot communicate

[will.qiu]

Hi,

Sorry for the late reply.

Will enabling ARP Proxy + multicast to unicast based on the following tutorial make any difference?

Connections between clients stop working (GL-BE93000)

If only one device is experiencing issues, it may be due to the way some devices handle ARP after entering sleep mode (though this may not be the only cause). We recommend that, when the issue occurs again, you check the device’s ARP table to see if entries for other devices on the same subnet that are actively pinging or communicating are present. # On Windows CMD arp -a # On Linux ip neighbour If it’s confirmed that the ARP entries are missing, you might try enabling Proxy ARP and Multica…

If it still doesn’t work, please try enabling ARP Proxy at the kernel level and see if that helps:

FLINT 3 Blocking Windows and Linux Devices from communicating

I just encountered the same issue: Clients on Wifi cannot see eachother (cannot ping eachother), even tough AP isolation was disabled. Strange enough, clients from LAN could reach Wifi clients. All of that happend, after I setup a VPN. Even when the VPN was turned off. That behaviour is a bug in the software after V 4.xxx, obviously there is no fix for it. but I found a workaround: First: Find out, if that is your issue: On the impacted client do a ping and look, if there is a arp entry (ar…