Macbook pro wireless stop responding when s/pdif port in use

Question

Macbook pro 15 i7 user here. Have anyone experience the same issue as me? how do i resolve this issue?
it stated airport detected wireless but it just dont issue DHCP ip address out. using VLC to run mkv video format.
video runs fine however not the wireless.:(

Answer 1

I'm guessing you mean that the computer is not receiving a DHCP address, rather than that it is not sending one, when outputting sound through the optical "side" of the sound out port ? Or do you mean that you are using your MBP as a de facto wireless base station and DHCP server for other devices, and that they are not receiving addresses from it when you have the MBP hooked up through the optical digital component of the sound out port?
Winthur> sorry, i should say my MBP is not RECEIVING an ip address. my bad
My MBP is connected to MyHome network but not getting an ip from my direct router when connecting through wireless; when i am using S/PDIF connection from the MBP combo 3.5mm jack to my digital z5500 speaker.
Do things (whichever you intend) work normally when using the sound out port's analogue mode?
Winthur> All things work great (the S/PDIF digital sound out via VLC) ACCEPT that i cant surf net(when my S/PDIF port in use movie playing via VLC or whichever prog). it just dont get any ip, it got a self assigned ip instead. (rem the airport is connected in yellow state)
Is there any possible that the equipment you are outputting the optical signal to itself is producing interference in the relevant wireless spectrum, either because of proximity to your wireless router or the MBP (if it is the router itself in this case) , or, possibly, simply poor shielding on whatever router you happen to be using?
Winthur> i am not sure of this but i am not using any wireless speakers and such. it is a direct Toslink cable (with one end 3.5mm converter) to my z5500 speaker. oh 1 tricky issue i notice is, i do have a HP AP connected to my WRT160N v2 router port. so when i switch the failed wireless connection to connect to internet via this HP AP (from MyHome network to MyAP network SSID), it work.(manage to grab an ip and connect to internet.) but when i switch back to connect wirelessly to my direct router (MyHome network), it failed gettng ip again. Both scenerios are with S/PDIF VLC in use with movie playback)
If you aren't using the MBP as the router itself (ie. your problem is scenario 1 in my first paragraph) then what brand of router is it, and what sort of wireless protocol and security are you using?
Winthur> using WRT160N v2 with 2.0.02 firmware. i know there is a new firmware out there 2.0.03 but is there really a possibility of firmware issue? i tried to flash once and the whole router went dead. manage to revive though. wireless protocol i am not sure but the security is WEP. both my router and my HP AP uses WEP
(Sorry about that rather prolix set of questions! I guess, fundamentally, I'm asking for more information about just what your set-up is here, and just what the problem is! )
Winthur> Glad you ask as i dont know what kind of info i should give to ask for help. in the nutshell:
-i have a WRT 160N V2 firmware 2.0.02 router.
-i have a HP AP connect to this router.
-Router SSID is MyHome network
-HP AP SSID is MyAP network
-both uses WEP
-both network can be "interswitch" without problem in surfing the internet without S/PDIF in use
-problem in getting IP from MyHome network (airport turns yellow) when S/PDIF in use
-Switch to MyAP with S/PDIF in use no problem.
-when S/PDIF unplugged, switch to MyHome network, can be use again.
appreciate your prompt reply.
Best Reg
Winthur.