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Dead WRT54G and EZXS55W

Discussion in 'Cisco/Linksys Wireless Routers' started by jrsweger, Aug 15, 2007.

  1. jrsweger

    jrsweger Network Guru Member

    A couple of weeks ago I came home from vacation to a dead WRT54G V1 and a dead EZXS55W. My daughters told me that a storm had gone through the day before and that the network was no longer working or wasn't working correctly.

    I found that all the lights were "on" on the switch and I could not communicate through it. The WRT54G wireless portion worked perfectly but the wired section (at least port 1 and 2) was dead. After playing with it for a while it seamed that port 3 and 4 started working. The switch was hooked up to port 2 and port 1 went to the nearest computer.

    After taking a good hard look at both of these I think I've found that the transformers at least look to be ok. I'm suspecting the ADM6996 ethernet switch controller has met its maker. I'm not 100% certain that a lightning strike close by caused this as I have 5 computers on the network and none have caused me any problems. Also, there is no obvious damage to any components or the circuit cards. The wall warts also check out ok.

    Has anyone made any attempts to replace this device to try to repair a broken switch or WRT54G?

    This is a 128 pin device and certainly isn't beyond my soldering ability. I've found possible replacements at Digi-Key for a little over $6 a piece so I've ordered a couple and I'm going to give it a try.

    Any words of encouragement or advice appreciated.
     
  2. slam5

    slam5 LI Guru Member

    why don't you take out the switch and see whether 1 and 2 is working? maybe the switch had cause the 1 & 2 to hang. even if 1 & 2 is dead, why don't you get another switch to add more ports instead of opening the WRT54G? it is so much work plus there is a chance that you can damage the wrt further. a 4 port switch can be had for $ 20 at the most. that's my 2 cents anyway. God Bless and best wishes!
     
  3. jrsweger

    jrsweger Network Guru Member

    I have already isolated the router and the switch and confirmed they are both dead as described. I also updated the firmware to DD-WRT v.23 SP2 from SP1 just to be sure it was not a firmware issue with the router. At this point the WRT54G to me is nothing more than a paperweight so replacing the ethernet switch component will be an adventure.
     
  4. jrsweger

    jrsweger Network Guru Member

    Update

    Got the parts yesterday. Tonight I pulled the suspected bad IC off the board of the WRT54G. Fairly straight forward removal. Got the new ADM6996L installed and soldered into place. Plugged it in and it seems to work. At least now I can get an IP address and all the ports seem to function. I haven't tied it into my network as of yet to do a complete verification, maybe tomorrow.

    I did run into a slight problem with the EZXS55W though. The ethernet IC in this isn't the ADM6996L. It is a Marvell 88E6060-RCJ and it does not appear that the device is the same pinout as the ADM6996L. I can't seem to locate any decent datasheet that shows the pinouts of the device nor can I find any place that displays the price of the device without doing a "request for quote". It does seem that the function of the device is almost identical.

    Does anyone here happen to know where I can get one of these devices? How about a decent datasheet with the pinouts of the device?

    Any help is appreciated.
     

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