Is the firewall in the Vodafone router secure?

[Janne]

Hello all

I have a pretty serious security problem with my Vodafone router that I just found out. I have a few stereo's connected to my local LAN (combination of wired and WiFi), one networked receiver (Yamaha) and one using Apple's Airplay.

The other day, my son, who has an Android phone, discovered that he has access to the Yamaha receiver from outside our LAN/Firewall (he was at work and had access to it). As I didn't believe him, when we were home, he turned off WiFi from his phone, he confirmed that his 4G started, and then he turned on our receiver and started playing music, change volume etc. from his phone!

The Firewall is turned on (I don't even allow ping to go through), Port mapping and "exposed host function" are both turned off.

Any ideas how this could happen? If not, I probably need to contact Vodafone? Let me know what you think

Thanks in advance

[Janne]

Seems to be  asimilar problem to what I had. My receiver is connected to the Vodafone router via a wired (Ethernet) connection

It turned out in my case that I couldn't access the receiver (Yamaha in my case) if I was using the WiFi hotspot built in to the Vodafone router. By using a different WiFi hotspot connected to the Vodafone router and ensure that any client I use (phone, laptop) was connected to a different hotspot, it works

Due to this, I edcided to turn off the built in WiFi in the Vodafone router

[Chapelle1]

So let me get this straight you connected your reciever to the the Vodafone wifi hotspot and it worked?

I am not sure I can do this with my Marantz av reciever. My reciever just searches for the network and once found it connects. In my case its seems to not find anything to connect too.

[Janne]

No! As I said, "My receiver is connected to the Vodafone router via a wired (Ethernet) connection".

But the client, or the device I use to control my receiver - smart phone or computer - must not be connected to the WiFi AccessPoint built into the Vodafone router, it has to be connected over another Access Point.

It probably also works if you connect the client (laptop) wired to the router, but I never tried that

[Chapelle1]

Ok i see. So i should not attempt to connect my reciever
"Wirelessly"?

Access point?