I also have a BV7 BV6 and a BL2000, they all work flawlessly. I have tried to reset the BLGW to factory setting and then made a new”capture” the number both BL3500 come up with is identical and therefore when one is added the next one is not recognized.
The old one Is placed in the bathroom and the new one in the kids room, if I turn the power in the house off and on again, and then try to operate the one in the bathroom afterwards, then it would operate the right one 50% of the time and the new one 50% of the time, it’s like the first one seen on the network is the one that gets the address.
Is it possible to give it a new number?? I thought it was a number stored in the speaker that is only read by the gateway....on a NL products it is the serial number, but on ML it just looks like a random number??
I spoke to a guy on a danish forum that also had a sw3.1 and that one has the same number as mine, he also had and other one with sw1.2 and that has an other number and therefore he doesn’t have the problem.
The number both come up with is 4294967295