rec.autos.simulators

GPL: Strange network / online problem

Uwe Schuerkam

GPL: Strange network / online problem

by Uwe Schuerkam » Mon, 05 Aug 2002 17:53:04

Hi folks,

ever since fiddling with the GF4MX and putting the old gfx card
(GF2MX) back in I have a strange problem in online races (GPL):
Connection (DSL here) is fine and stable, then about every 60
seconds or so latency shoots all the way up and stays there for
a second or two causing all visible cars to warp off the track
or disappear, then latency goes down again to normal levels.

My *** box runs Win98SE and is connected to a LAN (10MBit
RG58) and a Linux-based router (Mandrake 8.2).

Has anyone seen this kind of behaviour before?

I have tried the following:

- run tcpdump on the network connection on my linux router; nothing
suspicious to be seen in traffic; just plain old GPL UDP stuff, even
during those "peak" latency times.

- disabled WINS lookup in network setup (Win98SE)

- changed interrupts of gfx and network card (pci amd pcnet brand,
10Mbit) GFX card and network card share the same interrupt.

- downgraded the nvidia drivers (I had updated them to 29.42) to 28.32

- tested the connection under linux: ftp transfer speeds are normal,
so I'm pretty sure it's not the network card

- installed the latest pcnet drivers off amd's website

- updated the BIOS on my compaq deskpro to 2.04

- fiddled with the network card driver parameters

Still, no go. So short of a complete re-install, what options should I
try?

How can I enable the latency meters in N2002 to check if the problem
persists in this sim?

Cheers & thanks in advance,

Uwe

(posted to RAS and mailed)

--
Uwe Schuerkamp //////////////////////////// http://www.racesimcentral.net/
Herford, Germany \\\\\\\\\\\\\\\\\\\\\\\\\\ (52.0N/8.5E)
PGP Fingerprint:  2E 13 20 22 9A 3F 63 7F  67 6F E9 B1 A8 36 A4 61

Uwe Schuerkam

GPL: Strange network / online problem

by Uwe Schuerkam » Tue, 06 Aug 2002 02:00:22


> Hi folks,

> ever since fiddling with the GF4MX and putting the old gfx card
> (GF2MX) back in I have a strange problem in online races (GPL):
> Connection (DSL here) is fine and stable, then about every 60
> seconds or so latency shoots all the way up and stays there for
> a second or two causing all visible cars to warp off the track
> or disappear, then latency goes down again to normal levels.

Solved by playing a round of PCI poker, putting the NIC in the
slot next to the AGP slot. Now all boards in there have their
own unique IRQ, that seems to have helped for now.

Cheers,

Uwe

--
Uwe Schuerkamp //////////////////////////// http://www.schuerkamp.de/
Herford, Germany \\\\\\\\\\\\\\\\\\\\\\\\\\ (52.0N/8.5E)
PGP Fingerprint:  2E 13 20 22 9A 3F 63 7F  67 6F E9 B1 A8 36 A4 61


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