[TelstraClear] Random disconnections.

Forums › One NZ (including Farmside) › [TelstraClear] Random disconnections.

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73 posts

Master Geek

#116867 15-Mar-2008 22:56

Thanks for the suggestions and ideas guys...I will try them in the coming days when I am not so tired (only had 4 hours sleep last night, posting this then bed :)). Another weird thing was it was fine tonight til the PC user came on and then it started dipping in and out (on both devices).

And regarding the problem I had earlier this year, it ended up being resolved by a system setting being incorrect somehow...not the router. :D

Horace

13 posts

Geek

#117430 18-Mar-2008 22:38

If you do have a router, and its getting dropouts, try changing the DHCP range to a less common one, eg: 192.168.1.x, 192.168.0.x, 192.168.2.x, try changing it to a less common one, maybe 192.168.23.x, (just pick any random number). Have had that fix my problems and a few friends.

ellboss

73 posts

Master Geek

#117806 20-Mar-2008 18:13

Okay, I've narrowed down the problem to occurring only when the Desktop and Laptop USer are on simultaenously. Otherwise it is fine for both users. Am planning on working through the solutions in this thread tomorrow, just thought I would give an update.

grasshoper

164 posts

Master Geek
+1 received by user: 6

#118626 25-Mar-2008 20:33

after still having problems! and getting really fed up! i rang telstra clear and they were no real help, they just said for me to try leaving one computer online and see if it cuts out, i did this and they would both still cut out, so i send another email to netgear, and this is my email and their response:

3/22/2008 2:22:00 AM

Hi there,

I have got support from you before regarding the same issue, and your solutions have helped, but only temporarily. I have a desktop computer running xp home edition connected directly to the netgear WGR614v7 router and a laptop running vista bussiness connected wirelessly. I experience random connection problems. Sometimes it will work for a couple of days, and then cut off, other times only for a few hours and then disconnect, i then have to unplug the modem and router for it to work again. I have the latest firmware etc and the modem is a "motorola sufboard modem". I contacted my ISP telstra clear and they said that it must be the router as all the internet settings are fine.

Any help would be greatly appreciated! thanks heaps!

3/25/2008 5:58:00 AM

Dear Jacob,

Thank you for contacting Netgear Online Support.

Have read through those old case still we have done all the troubleshooting you constantly having drops out what we can do now is get the unit replace, as you are in New Zealand you will need to go your reseller where you purchase this device to have the device replace an quote them this case number and they will replace the unit.

Kind Regards,

Netgear Support Australia

PLEASE NOTE: To reply to a case logged through our online support system, you will need to login at http://my.netgear-support.com/myNETGEAR/ and select the online support option.

3/25/2008 7:21:00 AM

Thanks for your reply, i am not sure where to go as i purchased the device off trademe(trademe.co.nz) a trading site like ebay, so i am not sure where i can go. Since it was last year i purchased it i cannnot contact the seller.

3/25/2008 7:29:00 AM

sorry i forgot to include that the router when i purchased it was brand new and still factory sealed.

thanks!

grasshoper

164 posts

Master Geek
+1 received by user: 6

#118628 25-Mar-2008 20:40

will keep you posted of their response...

BarTender

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#118641 25-Mar-2008 21:41

Try changing the internal IP address range, if it doesn't fix it sell it back on Trademe and get a Linksys WRT54GL and load DD-WRT!

Dyson

Shop now for Dyson appliances (affiliate link).

grasshoper

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Master Geek
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#118877 26-Mar-2008 20:26

BarTender: Try changing the internal IP address range, if it doesn't fix it sell it back on Trademe and get a Linksys WRT54GL and load DD-WRT!

IP address range? how do i do that?

BarTender

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#118980 27-Mar-2008 08:51

If you go into the management interface on the router (normally http://192.168.1.1) and in the UI there is a way to change what internal IP Address range you use, normally it's 192.168.1.x, try changing it to 192.168.201.x or 10.64.22.x or something other than 192.168.1.x. Then the router will reboot, and you should dhcp off the router again with your new IP address.
This problem (and has been mentioned at least twice in this single thread!) is caused by the router getting confused by ARP entries for 192.168.1.x on the public (internet) side, when that same range is on the private (internal) side. It seems that a number of the cheaper routers broadcast ARP entries on both sides of the interfaces. If you ran a packet sniffer on the public (internet) side of your router you would see what I mean.

By changing the internal IP Address range then the arp entries either get discarded, or don't affect the operation of your workstations on that network.

Make sense?

eeb41039

59 posts

Master Geek
Inactive user

#119021 27-Mar-2008 12:01

Hmm I've got a cheapy Belkin wireless router > have changed the ip range to something obscure and it is still slow as mollasses! (still get the odd random disconnection as well)

My macbook plugged directly into the Telstra modem = 10 megabit down, 2 megabit up
My macbook over wireless = .8 megabit down, 2 megabit up

Wierdness... I think I'll follow BarTender's advice and sell it and pickup a Linksys with the DD-WRT

Foo

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#119048 27-Mar-2008 14:03

Well, I had my first random disconnection on Tuesday night and got slightly worried. A reboot of the router didn't help, but reboot of the modem did help. Must have been the Surfboard modem

BarTender

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#119052 27-Mar-2008 14:36

Another thing worth doing is ringing up TCL (or perhaps send them an e-mail :) and ask if your provisioning is correct, since your data cap may be incorrect (if you have changed plans) or they may not have enabled "Auto MAC address detection" or something similar, this means that you don't need to reboot your cable modem if you swap between different devices connected to the surfboard.

However the random disconnects could just be caused by a new subscriber who connected to your node who has the same IP Address range on your private network.

Quic Broadband

Move to New Zealand's best fibre broadband service (affiliate link). Free setup code: R587125ERQ6VE. Note that to use Quic Broadband you must be comfortable with configuring your own router.

grasshoper

164 posts

Master Geek
+1 received by user: 6

#119120 27-Mar-2008 18:16

BarTender: If you go into the management interface on the router (normally http://192.168.1.1) and in the UI there is a way to change what internal IP Address range you use, normally it's 192.168.1.x, try changing it to 192.168.201.x or 10.64.22.x or something other than 192.168.1.x. Then the router will reboot, and you should dhcp off the router again with your new IP address.
This problem (and has been mentioned at least twice in this single thread!) is caused by the router getting confused by ARP entries for 192.168.1.x on the public (internet) side, when that same range is on the private (internal) side. It seems that a number of the cheaper routers broadcast ARP entries on both sides of the interfaces. If you ran a packet sniffer on the public (internet) side of your router you would see what I mean.

By changing the internal IP Address range then the arp entries either get discarded, or don't affect the operation of your workstations on that network.

Make sense?

i think i changed it.. i did it to a bit of a random number, if it cuts out i wil try one of the numbers you suggested. Thanks for your help.!

by the way, i got a response from netgear, they just said unless i can get in contact with the seller their isn't much i can do.

grasshoper

164 posts

Master Geek
+1 received by user: 6

#119121 27-Mar-2008 18:18

Foo: Well, I had my first random disconnection on Tuesday night and got slightly worried. A reboot of the router didn't help, but reboot of the modem did help. Must have been the Surfboard modem

maybe it's the surf board modem tcl provide, does anyone/has anyone tried using a differen't modem?

BarTender

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#119161 27-Mar-2008 20:45

grasshoper: i think i changed it.. i did it to a bit of a random number, if it cuts out i wil try one of the numbers you suggested. Thanks for your help.!

by the way, i got a response from netgear, they just said unless i can get in contact with the seller their isn't much i can do.

Anything in the range 10.x.x.x or 172.16.x.x - 172.31.x.x or 192.168.x.x should be fine, and as with IP, numbers must be under 255 (incase you don't understand IP addressing).

I am not suprised by NetGears response to be honest, I never get any good help from the OEM hardware suppliers of home equipment, their attitude is if it costs less than $200, throw it out and buy a new one.

The surfboard may be faulty, but I seriously doubt it to be honest, you could always try plugging your PC/Laptop directly into the internet and reconfiguring the Static IP onto your machine. If it fixes it (which it probably will) then you know it's your router. There isn't any other Cable Modems supplied by TCL these days other than the Surfboards, they are TCL owned equipment and you can't go out and buy your own gear (even the same model Surfboard ex-the US for sub $100) and plug it into the Cable Internet network and have any chance of it working unless you know one of the handfull of people REALLY well on the inside that could make the changes in the system you would require, and even then they only support a small number of Cable modems to keep their lives easier. If you still have the dropouts with the PC directly connected, ring TCL and complain, they should send someone out to replace the Cable Modem.

Other than that get a WRT54GL, Ascent as always is the place I recommend, good sales and service, never had any complaints with a RMA that I have done in the past (even for gear I blew up by mistake <oops>!): http://www.ascent.co.nz/productspecification.aspx?ItemID=345759 out of stock ATM, but for just under $130 including G you can't really go wrong.

grasshoper

164 posts

Master Geek
+1 received by user: 6

#120540 2-Apr-2008 17:11

It's been a weak, since i have changed the ip, and i have had only one disconnection, which happend a couple of days ago. So i don't know if this has resolved the issue, but it has helped. If it happens again i will try a differen't ip address.

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