Weird PC Behaviour - what could cause this?
Weird PC Behaviour - what could cause this?
Author
Discussion

pentoman

Original Poster:

4,835 posts

293 months

Tuesday 23rd May 2006
quotequote all
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=876ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=876ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=2ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=876ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=876ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64
Reply from 192.168.1.2: bytes=32 time=1ms TTL=64

tuffer

9,012 posts

297 months

Tuesday 23rd May 2006
quotequote all
Are you for real?

mattley

3,039 posts

252 months

Tuesday 23rd May 2006
quotequote all
pentoman said:
WHAT COULD CAUSE THIS


ping 192.168.1.2 -t

pentoman

Original Poster:

4,835 posts

293 months

Tuesday 23rd May 2006
quotequote all
That 876ms interval is my wireless network card deciding it must change speeds - it will go from 54mbps to 48mbps, then 36, then 24, then it might jump back up to 54 or maybe not.

I have no idea why. My signal has 4 bars. I can't see a way to fix the speed - not even in the advanced tab of the network card properties in device manager. Does anyone else get this?


Also, if I disable or enable my wireless card, then for a second or two it freezes the PC whilst the hardware turns on/off. Should that happen? Perhaps this is related?

pentoman

Original Poster:

4,835 posts

293 months

Tuesday 23rd May 2006
quotequote all
tuffer said:
Are you for real?


mattley said:
pentoman said:
WHAT COULD CAUSE THIS


ping 192.168.1.2 -t


Haha sorry, I meant to post a follow up but was delayed!

That is the results of my ping - notice the regular high pings?

aldi

9,292 posts

267 months

Tuesday 23rd May 2006
quotequote all
mattley said:
pentoman said:
WHAT COULD CAUSE THIS


ping 192.168.1.2 -t




mattley

3,039 posts

252 months

Tuesday 23rd May 2006
quotequote all
pentoman said:
That 876ms interval is my wireless network card deciding it must change speeds - it will go from 54mbps to 48mbps, then 36, then 24, then it might jump back up to 54 or maybe not.


you can;t fix the speed, it's built into the protocol.

Is this consistent? connect high then degrade? If so I'd suspect iterference form somewhere. Try changing channels, and don;t leave your mobile phone next to the base station

malman

2,258 posts

289 months

Wednesday 24th May 2006
quotequote all
mattley said:
pentoman said:
That 876ms interval is my wireless network card deciding it must change speeds - it will go from 54mbps to 48mbps, then 36, then 24, then it might jump back up to 54 or maybe not.


you can;t fix the speed, it's built into the protocol.

Is this consistent? connect high then degrade? If so I'd suspect iterference form somewhere. Try changing channels, and don;t leave your mobile phone next to the base station


You can fix the speed but it has to be available in the driver as an advanced property.

What wireless card is it?

pentoman

Original Poster:

4,835 posts

293 months

Wednesday 24th May 2006
quotequote all
Thanks I'll try changing channels.

It's a D-link, DWL-G520+

There's a "desired basic rate set" in the advanced properties where you can set things such as "1,2,4,11 mbps" and "up to 54mbps" and so on, but they seem to have no effect.

I think it might be a low level hardware thing - as I said earlier, when I disable the network card the whole machine freezes, music gets stuck in a loop and everything, for a second or so.

TheExcession

11,669 posts

280 months

Wednesday 24th May 2006
quotequote all
aldi said:
mattley said:
pentoman said:
WHAT COULD CAUSE THIS

ping 192.168.1.2 -t


double haven't laughed out loud to a post in this forum for ages!

TheExcession

11,669 posts

280 months

Wednesday 24th May 2006
quotequote all
I've seen behaviour like this before, it's a bit unusual in that it's only one ping that is timing out, on my systems I had a problem where about every 30 seconds I'd get a block of 4-8 pings that would be over 1500ms, then everything wouldbe back to normal again.

As said above, likely it's interference, but unless you are really suffering throughput problems I wouldn't worry too much. One bit of advice when picking a new channel, go for something a bit obscure, I've moved some of my systems onto Channel 9 as every man and his dog is using the non overlapping 1,6 or 12.

pentoman

Original Poster:

4,835 posts

293 months

Tuesday 30th May 2006
quotequote all
TheExcession said:
aldi said:
mattley said:
pentoman said:
WHAT COULD CAUSE THIS

ping 192.168.1.2 -t


double haven't laughed out loud to a post in this forum for ages!


You know you work in IT if you laugh at jokes where the punchline is "ping 192.168 ..."