Go-micro: default mdns registry doesn't work correctly for me

[godcong]

when i used default registry, the client grpc result this error:

{"level":"error","msg":"{\"id\":\"go.micro.client\",\"code\":500,\"detail\":\"error selecting node node: not found\",\"status\":\"Internal Server Error\"}","time":"2019-03-12T13:29:35+08:00"}

i changed to consul, it's ok
i'm only add a registry into micro.NewService

before

s.service = micro.NewService(
        micro.Name("go.micro.grpc.node"),
        micro.RegisterTTL(time.Second*30),
        micro.RegisterInterval(time.Second*15),
    )

after

    reg := consul.NewRegistry()
    s.service = micro.NewService(
        micro.Name("go.micro.grpc.node"),
        micro.RegisterTTL(time.Second*30),
        micro.RegisterInterval(time.Second*15),
        micro.Registry(reg),
    )

does some issues in mdns?
or anything wrong with my code?

[phper-chen]

U should set a env called "MICRO_REGISTRY=mdns" for ur service in docker containner, or U can learn it from this example in right way:
https://github.com/wuYin/shippy
https://wuyin.io/tags/%E5%BE%AE%E6%9C%8D%E5%8A%A1/

[godcong]

use consul to fix

[PopTudor]

so weird, is also not working for me. Basic example

[PopTudor]

for me, the macOS firewall was the issue. After turning it off, everything started to work

[souvikhaldar]

I too was having the same problem on mac, then I turned off the firewall and it started working fine.