Diesel

As the alleged ‘network admin’, my PC is demanding I fix my connection problem – trouble is I have no idea what to do! Basically I lose the internet connection after about 20 mins use between my Netgear DG834 modem/router and my PC. Sometimes it comes back; most times it doesn’t.

The LAN 1 LED on the router flashes (and other relevant ISP logged on lights are ok), but I cant ping the router or ‘repair’ the connection – no IP address is assigned to the PC it seems. If I boot up a second PC attached to same switcher on port 2 it works fine & accesses internet.

The details are below if they mean anything to anyone who can help (noticeable by its absence that the router 192.168.0.1) and there are no packets flowing back from router to PC.

Physical Address: 00-30-1B-B3-FE-3F
IP Address: 169.254.80.37
Subnet Mask: 255.255.0.0
Default Gateway: 169.254.80.37
DNS Servers: 208.67.222.222, 208.67.220.220
WINS Server:

If you can help me thanks – as I have run out of what else to try now (including proper power off re-boots).

Thx

D

JackClark

Your IP address and Default Gateway are the same, that's not right. Put the router address as the default gateway.

scoobz72

a 169.254.xxx.xxx IP is an error.
What you need to do is release and renew the IP address from your PC. I assume the router is set to issue DHCP addresses?
If its not, then enable it. You are better off to full reset the router, start again, then upgrade the firmware if the connection keeps dropping out.

Diesel

Arghh it is such a pain. It again just stopped working again and 192.168.0.1 is no longer pingable. I have added 192.168.0.1 as the default gateway too. Everything is in auto other than the DNS server that I have specified. Any clue here mate in its non working state:

Physical Address: 00-30-1B-B3-FE-3F
IP Address: 192.168.0.2
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.0.1
DHCP Server: 192.168.0.1
Lease Obtained: 6/18/2008 10:40:34
Lease Expires: 6/21/2008 10:40:34
DNS Servers: 208.67.222.222, 208.67.220.220
WINS Server:

I think I just need to clear all Network connections on all PC's and start again flashing the USB stick between 'em?

D

Diesel

Guys can anyone give me a suggestion of what else to try here please? Deleting my previous Home workgroup and setting up the 3 PC's again from scratch hasnt helped fix this loss of connection. This is very frustrating as it just seems to stop working in the middle of browsing for no reason, and although the Gateway doesnt reply to a ping I can see the LAN 1 LED flashing data on the router. Other PC's cant see my 'Internet (LAN 1) PC either. What else could I try or what else could be killing the connection for a bit?

Also data rate sometimes seems very slow - took 40" to post this...

Cheers


D


WORKS WITH AND THEN DOESNT WORK WITH :

Physical Address: 00-30-1B-B3-FE-3F
IP Address: 192.168.0.2
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.0.1
DHCP Server: 192.168.0.1
Lease Obtained: 6/20/2008 09:20:10
Lease Expires: 6/23/2008 09:20:10
DNS Servers: 208.67.222.222, 208.67.220.220
WINS Server:

JackClark

Give the router a full reset. Back up your settings first.

andys

And flash the firmware on router

jaytc2003

iTrader: (1)

it seems unusual that the ip address is only 1 different to the gateway address.

I would log into the router and check the dhcp settings. I would check the ranges that dhcp is set to (on my router it is 192.168.1.64 and I have it set to allocate 5 addresses so it goes to 192.168.1.68)

Adjust the settings so that you have enough ips available for all machines that will connect. Then I would manually enter the ip settings on each machine so 192.168.1.64 on the first 192.168.1.65 on the second and so on.

jaytc2003

iTrader: (1)

oh and as above maybe flash the router, think there are some modified firmwares that show hidden options, think one of them may be called Uber GT

(google search will tell)

Diesel

Thanks for the suggestion. I have changed the start DHCP address to try:

Physical Address: 00-30-1B-B3-FE-3F
IP Address: 192.168.0.64
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.0.1
DHCP Server: 192.168.0.1

I'm on the latest firmware, and to be honest, I dont see why it should go so belly up when nothings changed.

Gateway and DNCP server are both in the router I guess and so adresses being same are ok?

Fingers crossed...

D

Kieran_Burns

iTrader: (1)

I'm going to have to look at my DG834 to be sure of the settings but you may need to confirm your net speeds.

You need to physically set the Speed and Duplex to 100/Full on the network card on your p.c. as this is what the netgear will be set to.

It's most likely a duplex mis-match.

To set the speed and duplex:
go to network properties
click 'Configure' on the network card
go to advanced
choose link speed/duplex
set to 100/full

Okay all the way out.

DemonDave

iTrader: (13)

Did you use the netgear connection wizard?

I had lots of problems setting mine up ... was on the phone to netgear a while and it appears it will do the wrong thing with anything else than a subnet mask of 255.255.255.0

I would upgrade the firmware (which it seems you have done), and then do a manual configuration.

Which ISP are you with?

and which Multiplexing Method are you using?

is VPI and VCI set correctly?

Dave.

Diesel

Thanks for the input guys - it remains off and on; perfect and then useless.

I've overriden the manual ethernet setting so its 100 full duplex now. Fingers crossed once again.

When it stops working with my 'Internet PC' (LAN 1) it always remains working with my 'work PC' (LAN 2) so it may well be a PC thing? I've tried it with firewalls and anti-virus off on LAN 1 too.

Works:
Physical Address: 00-30-1B-B3-FE-3F
IP Address: 192.168.0.64
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.0.1
DHCP Server: 192.168.0.1

D

Diesel

I'm with AOL Dave - but as it works fine on PC 2, I doubt its them or my MTU and whatever other settings. All set manually too. D

scoobz72

100% thats your problem, AOL!

AOL software uses a unique firewall. Are you using the AOL software or Your own browser?
Small difference, but it makes a huge difference.

Diesel

Hi I use Mozilla Firefox V2 on both PC's but did also try IE on the droppy connection PC. Hope that is the preferred answer

D

stevem2k

Try another router. I binned the sky supplied DG834GT after a couple of weeks due to problems like these.

Diesel

Seems unlikely to be the router I think? I run the same copy of XP on two machines and the router has only just started having the hump with a PC it was mates with for over 18 months...

DemonDave

iTrader: (13)

I assume both PC's are connected direct to the router, no other switches in the way ?

have you run a constent ping (ping 192.168.0.1 -t) in a command window on both PC's at the same time to see if the other pc is not able to connect but for a shorter time and therefore not stop the internet connection?

if you pipe the ping out to a file you could indentify if there is a pattern (ie after every 15mins) (ping 192.168.0.1 -t -s 1 > pc1.txt)

Diesel

Hi mate - thanks forthe input. I hate using this 'work editing machine' for surfing! It aint the proper way!

Generally it is only LAN 1 that is ever on - the other PC is off unless it is on a job. Are you thinking LAN 1 connection is overiding LAN 2?

D

DemonDave

iTrader: (13)

just trying to eliminate what is at fault.

If you run the ping on both machines and only one PC loses the connection it would point to the pc. If both lose connection at the same time then it points to the router. The timings and pattern (if there are any) may point to a service running on either the router or the PC's

Diesel

Ok - thanks. I'll try the timed ping on the LAN1 PC - the other on LAN 2 port NEVER loses connection.

It feels firewally to me by now (new word there? ) - why else would it work fine for ages and then slow down to a stop on the same IP / TCP settings?

Cheers. D

DemonDave

iTrader: (13)

I would try it on the 2nd PC --- it may lose connection but you dont see it?

Hanslow

I've just relegated my DG834G v2. I upgraded to the latest firmware (3.something.38 I think it was). Then my laptop and desktop stopped seeing the router completely. Then rolled back to 3.something.25 which was what had been on previously. Found that when I enabled mac filtering, it reset all the other settings. This was even after doing a reset via the button on it.

Got fed up with it in the end and went and bought a new router, a bit overkill possibly, but ever since putting on that 38 firmware, it had never seemed quite right and wouldn't appear to go stable rolling back to previous.

Early days yet with the new router, but so far so good. Good luck with yours, I'll be interested to see what solution you find in case mine might be the same

Diesel

No mate - when the internet PC stops working I fire up the browser on the second (or in fact also the 3d laptop PC) and 2 & 3 work fine.

Its back to its old trick of assigning a weird IP Address: 169.254.80.37 now - arghhh!

D

DemonDave

iTrader: (13)

That weird address means the PC cannot find the DHCP server (ie the router).

Daft question --- have you tried replacing the network cable?

Diesel

Dave! I've changed the lead. Fingers crossed yet again!!! Cheers. D

DemonDave

iTrader: (13)

and to be on the safe side make sure the cable is not passing any transformer ...

Diesel

Damnit! It wasn't the lead - have put dodgy PC on LAN3's cable. Picked it up fine and worked for 10 mins, now its dead and back to a weird IP address

DemonDave

iTrader: (13)

Ok next check --- does the PC have two network ports - could you try another one? if not when it disconnects are the two lights on the port still flashing?