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DNS problem ?

RaverDrew said:
What do you mean by bb connection bouncing ?
Click to expand...

Sometimes, you might find your ADSL connection is a bit unstable and the router/modem connection would be up one minute and down the next.

If it is behaving like that it can mask a whole shitload of problems, so checking the physical link to the net is currently stable is one of the first things I'd do.

i.e You dont get a reply back from a name server. Is it due to a problem at that particular server or just your internet connection overall ??
 
All else seems fine, my torrents are flying away at a very good stable speed and the pages that will load are doing so quickly.

Just also fired up trillian, irc and msn are working fine too.
 
And as if by magic, everything seems to be working fine now. :) :cool:

Must have been a problem at their end imo, as I haven't changed any settings for a while.

Just realised now, that I should have got my laptop out to see whether that was having the same problems, then I would have known for sure. :rolleyes:

Thanks for your help everyone. :cool:
 
Ok new developments.

Apparrantly (I've not been using this pc all week but my sister has) the pc has been having similar dns problems all week.

When I came back to it yesterday, the system fan was making unusual noises and there seemed to be a little bit of dust in the vents.

There's also been a few random crashes when there is more than one internet browser window open.

I decided to open the case up to check for dust, and the network card and the wireless card were covered in very sticky damp dust, almost like tar. The rest of the pc and components and seemed to be absolutely fine and dust free.

The source of it seems to be an open space that occurs where the front panel of the pc (where the extra media card reader and extra usb ports are) when it is left permanantly open.

When I cleaned them up with compressed air and wiped the sticky stuff off, the problems have occured much less frequently, but not dissapeared altogether.

I'm still a little bit sceptical about how dust on the network and wireless cards can cause dns problems but yet allow all other traffic fine.

I have also run a knoppix live disc and the pc has shut down one time when I have had many browser windows open, but not had any problems resolving the dns.

Playing graphics intensive games on the system for long periods causes no problems, so I don't think it is related to that either.

HELP please anyone. It's just bloody passed it's warranty as well. :(
 
RaverDrew said:
I'm still a little bit sceptical about how dust on the network and wireless cards can cause dns problems but yet allow all other traffic fine.
Click to expand...
Me too. I don't think that's the source of your problem.
 
Anti-virus and anti-spyware (avg, nod32, windows defender, spyware doctor, spybot, adaware and error doctor) are showing no problems.

Tommorow I'm gonna have to back up all data and do a fresh install, see if I'm getting the same problems.

It seems to lock up when using a few programs at the same time, but particuarly when using anything http based.

My gut instinct is that the cpu is slowly dying. :(

Is a gutting feeling if that is the case, because this pc was barely used for the first year of it's warranty, whereas I've had other workhorses I've abused for years and by all rights should have given up the ghost by now.
 
RaverDrew said:
Anti-virus and anti-spyware (avg, nod32, windows defender, spyware doctor, spybot, adaware and error doctor) are showing no problems.

Tommorow I'm gonna have to back up all data and do a fresh install, see if I'm getting the same problems.
Click to expand...
The best way to find out what's at fault is to plug in a laptop into the same connection and see if it has the same problems.
 
editor said:
The best way to find out what's at fault is to plug in a laptop into the same connection and see if it has the same problems.
Click to expand...

I'm already posting off a laptop on the wireless connection with no problems whatsoever.

The desktop pc which has the problem, has a wireless pci card and an ethernet card. It's affecting both of them, but not the wireless one so much for some reason. Like I said earlier as well when I opened up the case, there seemed to be some very sticky dust covering both cards but yet none of the other components. :confused:

Of course the conspiracy side of me is wondering whether to attribute it to recent flamewars on the internet, building up heat and drawing in unneccessary crap. :D ;)

Either that, or the gaping hole (obvious design flaw) that is left open on the case when the front panel is opened up, that lies in close proximity to both of the cards.
 
I'll soon find out, the only thing I can think of that I have installed just before the problems started, is an *ahem* evaluation copy of office 2007 ;) , but I've installed it on three other pc's without any similar problems, so it looks doubtful.

I've just also noticed the fan on the pc seems to go into overdrive whenever I have more than one window open. So I think maybe the either cpu is damaged and overheating, or the psu has drawn in internally some of the thick sticky dust and may be causing grief.
 
Using speedfan my idle temperatures are...

temp1: 42C
temp2: 62C
temp3: 128C

I assume that temp2 is the cpu , as it's the one that rises the most when there is any cpu activity.
 
the lowest should be the cpu temp then the system temp. 62 for a system temp is not great but should be ok....62 for a core temp is a bit high. Depends on the chip and I'm less familiar with intel. over 70 at all is possible damage. My opteron is running at 38 cpu and 42 system temp on idle. I had big cooling issues as my watercooling block wasn't sitting correctly on the chip after I tested another motherboard (not a good idea). I didn't know what the hell the problem was and had totally random issues blue screens and data corruptions that didn't make sense. If your cpu is at 62 then that could be your problem.
 
you could try underclocking your system and seeing if it is more stable. I did this for a while on my poorly cooled system and running it half speed!
 
Thanx for the info oic :)

I think I'm gonna wipe it clean and start again though tbh and then take it from there.

I'm tempted to test out vista.

If not I'm either gonna try out 64bit xp, or maybe try and get the tv card that has never worked properly going with MCE.
 
RULE ONE of computer maintenance:

1. Thou shalt not use the repair of one problem as an excuse to create a whole bunch of new ones by tinkering with something that doesn't deserve to be tinkered with.

in other words, save your experiments with funky OS's for a time when you know your hardware is stable :)
 
editor said:
One thing: I had a TV card that used to block my network connection.
Click to expand...

I've had it disabled for a while, because of it's hopeless performance with every bit of software I tried. Have heard that it works very well with xp MCE in support forums, so have been looking for an excuse to re-install anyway.

Out of interest how was your tv card blocking your network connection ? :confused:
 
Crispy said:
RULE ONE of computer maintenance:

1. Thou shalt not use the repair of one problem as an excuse to create a whole bunch of new ones by tinkering with something that doesn't deserve to be tinkered with.

in other words, save your experiments with funky OS's for a time when you know your hardware is stable :)
Click to expand...

True :D

I've been a bit slack backing up all my important data recently so this has scared me into sorting it out anyway.
 
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