Re: Strange connection problem :-/

"Steve Derby" <stevederby20@xxxxxxxxxxxxxxxxxx> wrote in
news:42dc2833$0$331$cc9e4d1f@xxxxxxxxxxxxxxxxxxx:

>> Sounds like it's losing the DNS server IPs, possibly when
>> renewing the DHCP lease. You can put the IPs into the router as
>> fixed addresses, just remember that if they change in the future
>> you'll have to update your router.
>>
>> The reason apps stay connected when this happens is that they
>> don't need to do another DNS lookup once they're connected.
>>
>> Dan
>
> Any idea why its doing the same thing with a brand new
> router/modem, this is exactly the same as the problem with the old
> one and they were different makes, could it be a prob at the ISP
> end?

If the new one is the DSL-504T, then the likely cause is that they
are virtually identical products. Both the D-Link and the Netgear are
based on the TI AR7 communications processor which has an embedded
MIPS cpu running MontaVista Linux + the BusyBox toolset/shell.
Clearly the configuring interface is different - but the rest of the
code is almost the same...

On the DSL-504T, I suggest you disable DNS Relay and enter the ISP's
DNS server addresses by hand. Check that the router's DHCP server is
handing these out correctly, rather than its own address.

The other well-known problem on this (and similar) models - in case
you haven't encoutered it yet - is insufficient memory allocated to
NAT session data, and some over-long connection timeout values which
cause session table to become filled with 'stale' connection data.

This can cause problems when using peer-to-peer applications which
make many concurrent connections. Find a Telnet script which should
fix this here:
<http://www.expansys.com/forumthread.asp?code=110551&thread=502
&man=D-LIN>

Hope this helps

--

Richard Perkin
To email me, change the AT in the address below
richard.perkinATmyrealbox.com

It's is not, it isn't ain't, and it's it's, not its, if you mean it
is. If you don't, it's its. Then too, it's hers. It isn't her's.
It isn't our's either. It's ours, and likewise yours and theirs.
-- Oxford University Press, Edpress News
.

Relevant Pages

  • Re: Urgent - please help
    ... Ethernet adapter Local Area Connection: ... above, are we still looking at a misdirected DNS server, or is it ... that a client connecting to the router is directed back to the DC for DNS ... All workstations use DHCP. ...
    (microsoft.public.windows.server.active_directory)
  • Re: Urgent - please help
    ... on the DC and at some point during the process of configuring the router, ... Ethernet adapter Local Area Connection: ... above, are we still looking at a misdirected DNS server, or is it ... All workstations use DHCP. ...
    (microsoft.public.windows.server.active_directory)
  • Re: Troubleshooting connection loss (continued)
    ... Internet connection. ... Looking in your dhcp lease file we find ... Something is not looking good in the router, from what I can guess so far. ... It is hard to prove if you are running static or dhcp. ...
    (comp.os.linux.networking)
  • Re: BT Wholesale "error page" on Plusnet
    ... >> It may be connected with them impementing idle session timeouts. ... > go to account 'connection' page and 'opt out' of the timeout. ... described as a Problem of the Router finding DNS server automatically. ...
    (uk.telecom.broadband)
  • Re: Internet connetivity over LAN problem
    ... Then I installed DNS server from Add/remove programs. ... I am trying to add this member serverto this domain.Because my DHCP ... > see what they are once the connection is established by your router & it has ...
    (microsoft.public.win2000.general)