Question about Linksys EtherFast Cable/DSL Router

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BEFSR81 admin problem when enabled uPNP

Since we got a PS3 my son requests that I enable uPNP on our Linksys BEFSR81 router. I enable uPNP and then save settings and after it has saved then I try to get back into administration on the router and can't. It won't take the password, whether I leave it at the default or set my own, I can't get past the login box. We can go ahead and use the router as it works fine, but I can't make any administrative changes unless I reset the router and clear it out. Help, what am I doing wrong?
Ver 3 with firmware 2.51.3

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  • bsimpson Feb 26, 2008

    Yes I can reset the router and then get back in again, but when I do that uPNP is off by default. If I leave uPNP off then all is fine. Once I turn uPNP on then I can't log in again.

  • bsimpson Mar 02, 2008

    What? I don't understand what you are trying to say?
    I don't need an "expart" to configure my router. I can configure everything I need on my router as long as i don't enable uPNP. When I enable uPNP on my router I can't get back into my router to change anything else. Did you actually read my posts??? Look at your first answer and then look at my first post again and you will see that I already tried your suggestion.
    I think the problem maybe lies with network services on the PC that I am trying to access the router with.
    BTW Only need to hold reset for 30 seconds, not 3 minutes. Also default logon is
    user: (blank)
    pass: admin

  • dienerd Jun 09, 2008

    bsimpson described the problem perfectly. I'm trying to setup a Panasonic webcam which requires upnp. When I enable upnp, I'm unable to login to the router - unless I hard-reset the router. I've upgraded the BEFSR81 to the latest version of firmware, but still have the problem. Does anyone have a solution to this?


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I actually FOUND the solution at the linksys community forum site. It's weird, and I quote [kiefmoon], "I beat my head against this issue for the past few months, for the same reason as you: I'd built out a Windows Home Server, which can configure a home router automatically via UPnP, so I happily enabled it on the router, only to be locked out of the web-based configuration page.

Good news though! I just figured out the cause of the issue -- and it's really dumb:
You turn on UPnP on the Passwords tab, right? Well, if you look around on that page, you'll notice that, along with the option to enable UPnP, there are two password fields filled with asterisks. I think most people would assume that if they don't change anything in those fields, then click Apply, that the password has not been changed. And they'd be wrong. I don't know what the password gets changed to at that point, but it's not "admin".

...So the fix is: when you enable UPnP, do yourself a favor and enter a password in those fields (ideally something sronger than "admin" ). That way, you'll actually know what the password is when you get prompted for it."

Posted on Jun 16, 2008

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In the router has one rest pin just press it for 3 min then after try to logged in but remind u have to configer agin

defolt ip is 192.168.1.1
user: admin
pass:admin

try it

Posted on Feb 26, 2008

  • sandip panchal
    sandip panchal Feb 27, 2008

    now isthere happen now u have to go with expart its will format your router & reconfuger it then your problem will be solved



    good day

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