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View Full Version : SB - Strange symptoms, any ideas?



Fifer
2005-05-22, 04:59
I've been using my SB for over a year now without trouble (other than the very occasional audio drop-out) until now.

Last weekend whilst listening in the wee small hours, after about an hours trouble-free listening, the audio started to drop out in a strange way. A few seconds would play then a few seconds silence then a few seconds more and on ... I gave up and went to bed thinking it was some sort of wireless interference. However, it was still the same in the morning. Sometimes the Slimserver couldn't be found either. After trying all the obvious stuff (repair wireless connection, power down SB for a while, force firmware reflash), nothing worked. In desperation I removed the PCB to see if maybe the wireless card or antenna connection had come loose inside. I did notice some horrible growth type contamination on the underside of the PCMCIA socket which I carefully cleaned off with some IPA and a soft brush.

After re-assembly, the symptoms are slightly different. A song will start to play fine but after a minute or two, the SB will reboot and attempt to set itself up again. After it finds the network and Slimserver, the whole damn cycle starts again. One other symptom is that when the set-up routine starts, it sometimes skips past parts which wouldn't be expected (such as entering the WEP key after a couple of key presses).

I suspect my SB but I haven't completely ruled out my wireless modem/router, the wireless card in my PC or indeed the PC itself. I changed the Motherboard just before the symptoms started, making me consider some form of compatibility problem between the motherboard and the wireless card, but the SB worked fine for over an hour (maybe two) before the symptoms started and I don't appear to have any trouble with my wireless broadband connection.

Please help. I'm at the end of my tether and have been without music for over a week. Any ideas?

mherger
2005-05-22, 05:12
> I suspect my SB but I haven't completely ruled out my wireless
> modem/router, the wireless card in my PC or indeed the PC itself. I

One simple test you could do: use a wired connection to the SB. If it's
ok, then, focus on wireless problems (neighbour microwaving food all day
long etc.)...

--

Michael

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dean
2005-05-22, 08:29
On May 22, 2005, at 4:59 AM, Fifer wrote:
> In desperation I
> removed the PCB to see if maybe the wireless card or antenna
> connection
> had come loose inside. I did notice some horrible growth type
> contamination on the underside of the PCMCIA socket which I carefully
> cleaned off with some IPA and a soft brush.
Can you describe this "growth"? Was it some kind of mold? Ick.

> After re-assembly, the symptoms are slightly different. A song will
> start to play fine but after a minute or two, the SB will reboot and
> attempt to set itself up again. After it finds the network and
> Slimserver, the whole damn cycle starts again. One other symptom is
> that when the set-up routine starts, it sometimes skips past parts
> which wouldn't be expected (such as entering the WEP key after a
> couple
> of key presses).
Is it possible that there's some kind of IR interference in the room
that's confusing the Squeezebox?

> I suspect my SB but I haven't completely ruled out my wireless
> modem/router, the wireless card in my PC or indeed the PC itself. I
> changed the Motherboard just before the symptoms started, making me
> consider some form of compatibility problem between the motherboard
> and the wireless card, but the SB worked fine for over an hour (maybe
> two) before the symptoms started and I don't appear to have any
> trouble
> with my wireless broadband connection.
Have you tried restarting your wireless router?

Fifer
2005-05-22, 13:31
Can you describe this "growth"? Was it some kind of mold? Ick.

It was difficult to tell what it was, even under magnification as it appeared to be under some kind of coating (no-clean flux maybe?) which went very soft when the IPA was applied. It looked a bit 'mouldy' but I was more concerned that it might be some sort of conductive dendritic growth. The rest of the board looked pretty clean but the joints on the PCMCIA connector looked weird. I've looked at a lot of PCB's and I've never seen anything quite like it. It might be a complete red herring as I've still got problems after whatever it was was cleaned off (I think, see the end of this post).

Is it possible that there's some kind of IR interference in the room
that's confusing the Squeezebox?

There are no IR sources other than remote controls which aren't being used when the SB is resetting.

Have you tried restarting your wireless router?
Yes, it didn't help.

One simple test you could do: use a wired connection to the SB. If it's
ok, then, focus on wireless problems
I tried to do that but cannot get the ethernet connection to work from my PC (I suspect I'm maybe using the wrong cable, x-over instead of straight through or vice versa). I only have one ethernet cable which I thought I got with the SB (yellow, 'patch cable' printed on it) but XP says a network cable's unplugged and the SB cannot find the ethernet connection. Anyway, the PC is in a different part of the house (further away from the router with a poorer wireless signal - 56% against 85% at the normal location) but wireless seems to be working fine here (so far). Nothing I can think of has changed in the normal location, so I'm baffled. I'll leave the SB running for a while to see if it remains ok.

Thanks for the suggestions gentlemen. I'll post back when I know more.

Fifer
2005-05-23, 11:18
Damn! It's now started the random rebooting behaviour in the new location. I'll need to try and get ethernet working to rule wireless in or out.

Fifer
2005-05-23, 13:59
I've just discovered the two threads detailed below:
http://forums.slimdevices.com/showthread.php?t=12778&highlight=reboot
http://forums.slimdevices.com/showthread.php?t=12478&highlight=reboot

They describe exactly the problem I'm suffering with random reboots. Was a cause/solution found? For info, I'm running XP Pro with SP2, Slimserver 6.0.2 and an Actiontech wireless modem/router. Wireless signal is 85%