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4 posts

Wannabe Geek


Topic # 25221 15-Aug-2008 12:16
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I’m using ihug/vodafone plane and I get disconnected quite frequently, about 3 times a week. Tried calling the CSR, it always take more than 20 mins to reach one of them, the last time I waited 1 hour 35 minutes to speak to them (reason was 2 CSR was sick, only 1 left to deal with all the phone calls) anyway. Was told that 3 times a week of random disconnection is considered normal!!

 

Then recently, when opening firefox browser with several tabs and also skype. Some how, skype worked fine with crystal clear voice, the tabs already opened worked fine too but when I opened a new tab to type in a new web address, it came up saying “connection failed” something meaning the internet is not connected. Then restart the browser, no webpage could be opened. Still, skype worked fine. Then had to reboot the modem, everything backed to normal. Called ihug CSR, they offered no help.

 

Does anyone here know the mysterious partial disconnect?

 

Thank you so much

Genz

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355 posts

Ultimate Geek


  Reply # 157181 15-Aug-2008 12:33
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There are a myriad of reasons for the 'partial disconnect'. For instance I recently discovered that Microsoft severely limited the number of half open SYN requests allowed in any given Vista variant. This means if just 2 websites don't respend to the initial SEND SYN in Vista Basic then you can't keep browsing until the auto close kicks in (a number of minutes).

The automatic disconnect you're experiencing is normal. Just a few times a week isn't bad at all. What applications are you running that are so stability sensitive that you need to maintain a 100% up time?

If using Vodem, uninstall the auto software and install the VMC software (9.2 from memory) from the Vodafone website. While they've made some improvements on the internal software it's still not up to par.

Incidentally, I'm hearing more reports of VoIP clients working well on the VF mobile data network. This wasn't always the case and shows a marked upgrade.

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  Reply # 157305 15-Aug-2008 21:12
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When I see that behaviour on my machines its due to the nat table in the router being full.

Solution is to turn off DHT in azureus since it hammers the router with 1000s of UDP connections. Its a fundamentally broken protocol that just screws the router over in most cases.




Richard rich.ms



4 posts

Wannabe Geek


  Reply # 157326 15-Aug-2008 22:49
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Thanks for the informative replies. I m using Firefox 3.0, windows XP home edition SP2 and Asus router linked to a D-link modem... Can't find anything in the nat table thou

355 posts

Ultimate Geek


  Reply # 157354 16-Aug-2008 09:19
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I just realised you aren't talking about wireless Smile. I really need to ask for more details before launching into solutions.

In that case 3 disconnects is a little on the high side but within normal ranges.

Bit torrents cause a lot of problems with regards to open connections (most home routers can only happily handle around 25-30) so you'll need to do some troubleshooting if this is the case (google has some good guides).

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