Re: Problem with Network

From: Neil Ginsberg (nrg_at_nrgconsult.com)
Date: 09/23/04 

Date: Thu, 23 Sep 2004 02:15:16 GMT

>>Both computers are reporting the same problem. I upgraded to SP2 several
>>weeks ago and didn't have a problem. This started all of a sudden
>>yesterday.
>
> Any idea what you were doing yesterday to trigger this?

No -- but the day before yesterday I was trying to fiddle with the IPs. D23
used to be 192.168.2.2 and D51 used to be 2.3. Then I moved a few days ago
and when I resetup my network, D51 got the 2.2 slot (since it connected
first, I guess). Since I had my PCAnywhere remotes set up with their old
IPs, I tried to get D23 to be 2.2 again -- mostly by clicking Repair and by
unplugging, rebooting, etc, with D51 turned off. But nothing worked. So I
accepted the new IPs and changed my PCA settings instead.

That was a couple of days ago, and everything was still working fine. Then,
yesterday, no more. So maybe the thing from two days ago had something to do
with it. I don't know.

>
>>Note that the "limited or no connectivity" problem only happened when I
>>connected the two PCs directly, peer-to-peer. When I have them connected
>>through the router (as is the case with the IPs I noted above), I don't ge
>>that error, but the dialog box says, "Windows did not detect problems with
>>this connection."
>
> You have dialup (PPPoE?) on D23.

Yes, that has to do with my move. I had DSL, with both computers accessing
it through the router. I'm currently using dial-up, but am still using the
router to connect the two PCs, with each PC dialing up directly (which,
BTW -- and thankfully -- neither one has problems with).

>
> Are you using the router to share the dialup service? Or are you sharing
> the
> service with ICS, and using the router to just connect the two computers?
> If
> you're using ICS, have you disabled the router functionality?

Not sure what ICS is. But hopefully my response above answers that question.
If not, let me know.

>
> To use a router as a hub, with an ICS server, you have to:
> 1) Disable DHCP on the router.
> 2) Connect the ICS server (D23), and all ICS clients (D51 etc), as peers
> to the
> LAN side of the router.
> 3) Change the LAN address of the router from 192.168.0.1 to something
> like
> 192.168.0.99 (gotta keep it on 192.168.0/24 subnet).
> 4) Setup the LAN interface on the ICS server as 192.168.0.1.
> 5) Setup any ICS clients to use DHCP for all settings (obtain IP address
> and
> DNS servers automatically).
> 6) If you're going to do file sharing, either disable ICF on the ICS LAN
> connection (not recommended for a wireless router), or enable the FPS
> exception
> in WF. Or disable WF, and configure NPF properly.
>
>>> Have you enabled the File and Printer Sharing exception in Windows
>>> Firewall on
>>> both computers?
>>
>>I believe I disabled the Windows Firewall altogether (am using Norton
>>Firewall). So unless the SP2 upgrade turned it back on, it should be off
>>completely. However, I can't even get into the firewall to check. When I
>>go
>>to Control Panel, I can't get into anything. Double-clicking on an item in
>>Control Panel causes the hourglass to come up for a split second; then it
>>disappears, and that's it. So I can't check it. That's on the wired
>>(desktop) computer.
>>
>>On the wireless (laptop) computer, I am able to get into Control Panel
>>items, and, indeed, the Windows Firewall was on. I turned it off. But I
>>still can't get into the computer from the other one.
>
> Yuck. Norton Personal Firewall is know for NOT reacting well to being
> disabled.
> The only solution here is to either un install NPF (using religiously all
> instructions from Symantec), or enable it and configure it properly.
>
> That is #1 on my list of causes of your problem.

A couple of thoughts on that.

First, in the past, whenever I've had network problems (a few, over the past
few years), it's either not been from NPF; or, if it was, it was cleared up
when NPF was disabled. Thus, I'm not very optimistic that NPF is the
problem.

Second, this thing about not being able to open anything from Control Panel
(and some shortcuts) is a serious thing. Something is screwed up there, and
my hunch is that whatever it is might be somehow related to the network
problem. Maybe not, but it seems very possible.

Thanks,

Neil

>
> <SNIP>
>
> Cheers,
> Chuck
> Paranoia comes from experience - and is not necessarily a bad thing.

Relevant Pages

  • Re: ICS and Router not compatable
    ... > I have two computers connected via a Netgear RP614 ... >Cable/DSL Router. ... >enable Internet Connection Sharing (ICS) I get a message ...
    (microsoft.public.windowsxp.network_web)
  • Re: dial-up and wireless networking
    ... Won't both of my computers have the Ethernet ... you need to set up ICS on only ... I recommend a router, ...
    (microsoft.public.windowsxp.network_web)
  • Re: "Network cable unpluggged"
    ... "Bob Cressman" wrote in message ... I have no idea what ICS is. ... network, you need IP addressing with both computers on the same subnet, ex: ... If you have a broadband router, then the router would provide IP information ...
    (microsoft.public.win2000.networking)
  • Re: Two computers on one DSL line
    ... > to keep the DSL signal from getting into the telephone. ... > It is called a DSL Filter Z-330 TJA Z-Blocker ... you can use multiple computers. ... You need a Router hooked to the DSL modem, ...
    (comp.sys.mac.comm)
  • Re: No files showing
    ... On the wireless I can pick up the network, get on the internet but I can't ... Let's start by looking at "ipconfig /all" from both computers. ... The router is a Dlink 524, ...
    (microsoft.public.windowsxp.network_web)