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Lan Turns Off, Any Thoughts?

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#1 xxogrelicxx


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Posted 24 July 2007 - 08:34 PM

I made an XBMC box for my dad and it has worked great for months now. Recently, it drops the LAN connection (the green light on the back goes out) even though the rest of the network is functioning normally. Usually goes out while watching a movie, but that's all he uses it for is watching movies. Everything else on the xbox works as usual, but without LAN function, he has no purpose for it. He said that if he turns it off for a while, the LAN works again for a short time, but then drops the connection again. I had him check the temps on the cpu/gpu and they were fine - even had him turn the fans up to 100% and again, no difference.

Our concern is the LAN may be bad. I'm looking for any ideas to salvage his xbox. If it is the LAN, is it possible to fix/rig/mod?

I thought about possibly replacing the mobo, but it looks like they cost ~$85-90 anyways and would be a pain to do and wouldn't save much money than buying a new box.

I searched the posts for a while and didn't see a helpful answer to the problem, any thoughts are appreciated.

Thanks in advance

#2 obcd


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Posted 24 July 2007 - 08:51 PM


what is the xbox connected to? A router or directly to a PC NIC? Did you had some bad weather recently? Maybe static electricity from nearby lightnings damaged the xbox ethernet port. What are the led's doing on the other site? (Most routers also have a Link led that goes on when a network device is connected)

I suppose you have already tried another network cable. It would not be the first time that some pins of the RJ45 connector are not giving a good connection. Sometimes simply unplugging and replugging it can solve such problems.

If it was damaged by a nearby electrostatic discharge, than I think Ebay is your cheapest solution. There are guys on this Forum that are specialised in repairing xbox network problems. The component that usually fails is not easy to replace as it's pin's are very close to each other. You almost need special smd rework tools to replace it.


#3 jimbobjim


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Posted 25 July 2007 - 01:26 AM

Now and again my console will disconnect for no reason so maybe it is something really stupid. Before buying a new console eliminate all other possibilities. You may just need to upgrade your XBMC build.

#4 xxogrelicxx


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Posted 28 July 2007 - 05:37 PM

Thanks for all of the advice. He remade the lan cable several times and after some trial and error, it turned out to be faulty lan wire (probably in the middle of the long wire). He ordered a wireless adapter and this should fix his problem.

You guys are awesome, thanks again!

#5 xxogrelicxx


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Posted 31 July 2007 - 12:11 AM

After moving the xbox to another wired outlet on the same network and streaming a movie perfectly for two hours, it was determined the Ethernet controller on the mobo was OK. (whew). This left the Ethernet cable (about 30 ft.) as the culprit. The entire run actually starts with a wireless router on the 2nd floor which has about a 30 ft. run to a switch in the basement. From the switch there is another 30 ft. run through a crawl space to get to the xbox. This setup has been working flawlessly for months until recently when the reliability has become sporadic.

Rather than run new wire, I purchased a Buffalo Ethernet Converter ( http://www.newegg.co...82E16833162168) and it works great! What's really nice about this is that it has 4 ports so if you can connect in 3 other wired devices besides the xbox.


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