ADSL Sync Only When PC is On

S

Speed_Demon

Active Member
Joined
Feb 21, 2007
Messages
70
Reaction score
0
Location
Sandton
A weird situation. My router loses ADSL Sync (and hence PPP, Internet) now and again...but it only does so when my PC is off. Once my PC is back on, it regains Sync after a minute or so and then re-connects to the internet.

I currently have my Phone (Galaxy S4) connected via Wifi, my PS3 connected via Ethernet and my PC connected via Ethernet. When my PC is on, everything is fine with all devices but once my PC is off for a while, the Sync is lost and, subsequently, the other devices are left stranded with no Internet until my PC is turned back on.

Is my router (Billion 400G....I know, it's crap) wonky? Or is my PC doing something to it?

FYI: All devices use Static IPs in the 10.0.0.X range (/24):confused:
 
Finding this problem means you switch your PC off. I think that's the weird thing.
 
Can't say for sure, but I'd check the earth/ground on the router and the POTS. Bit of a marginal guess though...curious to see what others have to say.

Also, allow me to link my fellow mybb'ers to a bit of relevant hacker folklore: (hacker in its original meaning)
http://www.catb.org/jargon/html/magic-story.html
 
It could also be your pots micofilter. If that's faulty it tends to tamper with the modem somewhat
 
Ah! simple....you set the mac address of your pc in your router. Set it to default.

EG:46aeacca8b89cb27b0a2d496f841ebf7.png
 
HavocXphere said:
Pretty good angle, but he is losing *sync* not just connection judging by post.

OP please verify that the router is losing sync, not just internet access.
Click to expand...

Im going to test that with my router right now to see if internet is lost or total de-sync takes place.
 
Rickster said:
Im going to test that with my router right now to see if internet is lost or total de-sync takes place.
Click to expand...

Result: inconclusive.

I set it to the PC MAC but i wasnt sure if the PC must be shut down because i just unplugged the LAN cable from the PC and the connection was still their.
 
Last edited:
Make sure that you've configured your router to be always connected and not to "Dial on demand"!

On my D-Link DSL2500U that option is called "Dial on demand (with idle timeout timer)" and it is unmarked. The other important option to select is "Keep alive PPP connection", so that the ISP won't forcefully close the PPPoE connection when it goes idle.
 
The MAC Address is that of the Router.

I'll have a look see regarding the Idle Timeout setting.

If all fails, I'll try another router once I get my hands on one.

Thanks for all the response so far.
 
HavocXphere said:
Can't say for sure, but I'd check the earth/ground on the router and the POTS. Bit of a marginal guess though...curious to see what others have to say.

Also, allow me to link my fellow mybb'ers to a bit of relevant hacker folklore: (hacker in its original meaning)
http://www.catb.org/jargon/html/magic-story.html
Click to expand...

+1

I assume that the PS3 has a transformer unit so only the positive & negative reach the PS3 unit itself. The phone is wifi. So it definitely seems like a grounding/ Potential difference creeping in somewhere. Check your surge suppression unit, this might be grounding via the PC.
 
This might be a stupid question but are you sure the dial-up is done from the router and not the PC? Check if your router is set to PPPoE with passthrough or bridge mode, if so it might be that the dial-up is done from the PC and not the router.
 
Hi There,
I think you are set to dial from the PC and not the router. Change it and I think the problem will be gone.

Let us know though we can take being wrong :)

Regards

Tim
 
@dtj & Tim the Techxpert:
I would really be surprised if that is the case, because if he dials the PPPoE connection from the PC, then only the PC would have Internet access and still none of the other devices...
 
Pada said:
@dtj & Tim the Techxpert:
I would really be surprised if that is the case, because if he dials the PPPoE connection from the PC, then only the PC would have Internet access and still none of the other devices...
Click to expand...

Not necessarily. But, usually if you are able to set up PPPoE and connection sharing on an PC, you would be able to troubleshoot this problem in seconds.

(I run my PPPoE on my HP Micro Server running linux and serving as a NAS and internet gateway and various other services, and it shares the internet access to all the other devices, laptops, media player, smart phones etc.)
 
yes, you're right @ ranger.

ICS (Internet connection sharing) does make it possible to dial the PPPoE connection from a Windows PC and then share that connection with other devices on the local network. You have to explicitly enable sharing, which wouldn't just happen accidentally, which is why I think the odds are that the OP is dialing the PPPoE connection from his PC is slim to none.

I'm also dialing my PPPoE connection from my HP N36L Microserver, but I do it from within MikroTik RouterOS thats running in VirtualBox, which I then also share with other devices, as well as doing firewalling, routing, etc. :D
 
Ok, so I got myself a Netgear. The problem is gone. Go figure. :wtf: Guess my router was wonky.

Thanks for all the response.

NB: The PC wasn't dialling. The internet never went off immediately after the PC was turned off. And if the PC was off and the router was off, when the router would be switched back on it could connect to the internet SOMETIMES and then eventually disconnect until the PC was switched on. Once the PC was on and the router was on then the Internet was stable. I know, it was extremely weird. Ultimately the router seemed screwed. My new one does nothing crazy. Works like a bauws.
 
Last edited:
Speed_Demon said:
A weird situation. My router loses ADSL Sync (and hence PPP, Internet) now and again...but it only does so when my PC is off. Once my PC is back on, it regains Sync after a minute or so and then re-connects to the internet.

I currently have my Phone (Galaxy S4) connected via Wifi, my PS3 connected via Ethernet and my PC connected via Ethernet. When my PC is on, everything is fine with all devices but once my PC is off for a while, the Sync is lost and, subsequently, the other devices are left stranded with no Internet until my PC is turned back on.

Is my router (Billion 400G....I know, it's crap) wonky? Or is my PC doing something to it?

FYI: All devices use Static IPs in the 10.0.0.X range (/24):confused:
Click to expand...

I had a problem similar to this. I know its a mission, but try disable your DHCP and use static addresses and see if it fixes the issue
 
You must log in or register to reply here.
Back
Top
Sign up to the MyBroadband newsletter
X