Odd (?) Connectivity Problem

charles chris cccharlz-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org
Tue Apr 17 12:40:01 UTC 2012


I assume you did power reset the modem and the router

Make sure output of modem is going to WAN input of router and output from
router is going to PC

You may try using another output port on the router or try changing the
Ethernet cables

You may uninstall then reinstall your NIC

You may try connecting another PC to the router.  If that PC connects then
the problem lies with your PC

On Fri, Apr 13, 2012 at 5:40 PM, Lennart Sorensen <
lsorense-1wCw9BSqJbv44Nm34jS7GywD8/FfD2ys at public.gmane.org> wrote:

> On Fri, Apr 13, 2012 at 04:13:19PM -0400, Phillip Mills wrote:
> > I suppose that's a possibility.
> >
> > I'd be more convinced if they hadn't reconfigured their DNS servers at
> the same time as the problem started, or weren't telling a large number of
> customers to do router resets, or the router had any problems
> connecting...but, maybe.  ...or the router is too old or otherwise
> incapable of dealing with whatever changes they made.
>
> It may be that something they did is making it trigger the problem,
> but those boxes are ancient, and had issues even when they were new.
> Given it works fine with you don't use the linksys, I would very much
> point the blame at the linksys.
>
> I do not have fond memories of the BEFSR41.
>
> I did some searching, adn as part of testing for dnssec, the BEFSR41 was
> found to not support tcp dns queries through it's dns proxy (so using
> the router as your dns to then forward the requests on to whatever dhcp
> told it to use from the isp), nor does it handle udp packets larger
> than 1472 bytes (which could be a problem for records with IPv6 info,
> or at least a lot of entries).  So overall, it does look a bit broken.
>
> I am trying to remember if it has a setting to pass the upstream DNS
> setting to the dhcp clients locally rather than using a dns proxy on
> the router.  Of course you could also just configure it to hand out
> 8.8.8.8 as DNS to your dhcp clients and be done with it.
>
> The test report I found shows the WRT54G as having even more DNS proxy
> problems.
>
> --
> Len Sorensen
> --
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