Drop in signal strength after a few days

Discussion in 'DD-WRT Firmware' started by gentrydc, Sep 4, 2006.

  1. gentrydc

    gentrydc LI Guru Member

    We are using half a dozen WRT54GL AP's and all is working well. However, we have had a number of instances of routers working well to begin with and then the power (signal strength) drops off siginificantly.

    We have been running the boxes at 100mW (which shouldn't be an issue?). We have had at least 3 out of 7 brand new boxes do this. It usually takes a 48 hours or much longer in some cases. We didn't notice the problem until we were running the DD-WRT v23 SP2 (downloaded in July from Sputnik) on all boxes. It appears the problem is permanent. Reinstalling the original Linksys firmware does not help. The boxes now seem to put out about 50% of the power. I suspected it could be overheating, but it is winter here in New Zealand (about 10-15 C) so I can't really imagine this is an issue.

    I checked today and there is now a new v24 from Sputnik available, but I am not sure if changes are only Sputnik or there are changes to the rest of DD_WRT as well?? I havn't had a chance to try this yet.

    Has anyone seen anything like this beofre? or have any idea how we can troubleshoot? Thanks
  2. Guyfromhe

    Guyfromhe Network Guru Member

    I can't say for sure, but it's possible that turning up the power higher than default may have damaged the radio chipset. It's guaranteed to run at the default which I think it around 65 mw, You can turn it up but theres always a chance something could go wrong, just like overclocking... It is possible that you just had 3 boxes that were less tollerant to the change in power you required and it broke something... I doubt there is anything you can do in software to fix it.
  3. gentrydc

    gentrydc LI Guru Member

    Thanks for that. Default power is only 28mW. Do you have any suggestions how I could verify that the high power might have cooked the chipset. From what I have read, running them at full power (250mW) they might last 6 months. So it would be a bit surprising if this was the case.

    Anyone cooked there chipsets with a bit too much power??
  4. Guyfromhe

    Guyfromhe Network Guru Member

    I can't really say how you'd be able to confirm other than observing a change in performance... Like i said some may be more tollarant than others but your taking a chance when using it outside of it's mfgr spec.

    I can't say thats definately the case but it really sounds like it.
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