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121 posts

Master Geek
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Topic # 166158 4-Mar-2015 13:25
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I'm investigating an internet issue for a friend of mine.  They're on slingshot, but I don't believe this is related to the issue.

If I connect to his router with an ethernet cable, everything works fine.
If I connect over WiFi, I cannot visit (TCP, UDP & ICMP) overseas servers.

Both wired an Wifi are getting IP addresses on the correct subnet, the same gateway, mask and DNS servers.

DNS lookups are resolving for both ethernet and WiFi, so I'm trying to connect to overseas IP's to take one more variable out of the mix.

Trace routes on both connections appear to be following the same path.

I've also tested with a tablet over WiFi, and another laptop over WiFi & Ethernet with the same results, so it appears to be an issue in the router. The router log shows no one has logged into the router web interface in months.

The modem is a (rather old?) dynalink ADSL wifi router.

Any ideas? I've rebooted the router in case it was a routing table, dns cache issue.

It's doing my head in as the WiFi and ethernet in theory are (should be) bridged.

Thanks



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  Reply # 1251003 4-Mar-2015 13:28
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I believe there was a Windows 8.1 WiFi compatibility issue....  perhaps google that and see how you get on if using Windows 8.1




"4 wheels move the body.  2 wheels move the soul."

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121 posts

Master Geek
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  Reply # 1251004 4-Mar-2015 13:31
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I've tested on WinXP (Wifi & Ethernet), Windows 7 (WiFi & Ethernet), Android (unknown version - Samsung note tablet) and Kali Linux, not tried with Windows 8.

Or can it be an issue for other WiFi clients where one of the clients connected is windows 8?

 
 
 
 


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  Reply # 1251010 4-Mar-2015 13:38
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ElectronicFerret: Or can it be an issue for other WiFi clients where one of the clients connected is windows 8?

No I don't think so.

Wireless chip in the Dynalink may be fried.  You could try a firmware update and/or factory reset if you are confident in your ability to set it up from scratch.




"4 wheels move the body.  2 wheels move the soul."

“Don't believe anything you read on the net. Except this. Well, including this, I suppose.” Douglas Adams



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Master Geek
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  Reply # 1251014 4-Mar-2015 13:46
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Wireless chip in the Dynalink may be fried.  You could try a firmware update and/or factory reset if you are confident in your ability to set it up from scratch.


I'll have another look tonight.  I'm normally very confident setting them up from scratch, but it's got a lot of QOS settings for VoIP which appear to be slingshot specific - I'm not sure if they are even using the POTS ports on the router.



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  Reply # 1251019 4-Mar-2015 13:56
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If your friends are using Slingshot VoIP than I would tend toward calling Slingshot and advising the wireless is faulty in their router.  Let them troubleshoot it over the phone.  With luck they will replace the router, as of course the phone service depends on the router working.  If they are not using VoIP then plunge ahead as the QoS settings don't matter if you are not using that service.  QoS does not allow or block traffic, just prioritises it.




"4 wheels move the body.  2 wheels move the soul."

“Don't believe anything you read on the net. Except this. Well, including this, I suppose.” Douglas Adams

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  Reply # 1251062 4-Mar-2015 14:27
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RTA1046VW ??

Is the modem configured to automatically accept the ISP assigned DNS server addresses? If there are manual entries for another ISPs DNS servers it may give the effect of no DNS for international sites as some queries for cached sites may still through while queries for others are refused.

Try manually setting DNS server addresses on devices and check whether that makes a difference.

I don't think Slingshot implements this but some ISPs (Spark, Vodafone) may also block DNS queries made from older modems for security reasons.



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Master Geek
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  Reply # 1251556 5-Mar-2015 10:43
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I did more testing and believe it is a problem with the router - it seems to be sporadic but if multiple wireless clients are connected, it happens more often. It was using the latest firmware and continued after a factory reset.

They aren't using any of the voip features (the modem has voip settings in the web interface, but no external POTS ports), so I've set him up with an old Telecom Thompson ADSL router I had from a few years ago.  Nice easy fix, only needed to setup the PPP username/password and set the WiFi SSID and password.  All working fine now.

Cheers

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