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47 posts

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# 145470 19-May-2014 11:15
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We have a Netcomm NB604N at home and connected (wired) to the outside world. For the most part it works fine but it is common for it to not be able to connect on the first time a new page opens but on the second or third refresh it will. It seems strange as the connection can be made eventually, it just seems like it has almost in some sort of sleep mode that it needs time to wake from.

I'm not sure where to even start looking or even what to put in a google search so even some key words would be appreciated.

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  # 1047910 19-May-2014 11:22
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90% probability that it is a DNS issue.  

Does this affect multiple computers?  Check that the computer is using DHCP and is getting it's DNS addresses from the broadband router.

Is the broadband device supplied by your ISP?  When the router connects to the DSL connection, it will get an IP address.  It should also get DNS Server addresses.  Check that there are no DNS addresses fixed into the router.  In the DHCP area which defines the IP addresses handed out to your computer, check that the only DNS address supplies is the router's IP address (i.e. a 192.168.x.x or a 10.x.x.x address).  If the router is ISP supplied, check settings with them.  Perhaps even while o the phone with the ISP factory reset it and walk through a fresh setup with them.




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  # 1047990 19-May-2014 13:33
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Thanks for that. I understood about a quarter of it but gives me somewhere to start my research. That's why I love these forums, they help direct my learning.

 
 
 
 


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  # 1048005 19-May-2014 13:58
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Does it affect all devices on the network?

You can try manually entering Google DNS (8.8.8.8) into the device. Make sure it's temporary though, that doesn't let you use ISP or national caches, suggest it's only for testing.



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  # 1048097 19-May-2014 15:07
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I've just tested the tablet that has wireless access and it doesn't have the same problem. I'm assuming all devices should have the same issue if it is DNS related.

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  # 1048103 19-May-2014 15:09
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Check the PCs network connection. In a command prompt type

ipconfig

and paste the results here. I don't think any of that information is confidential or sensitive, since they'll all be local IPs not public.

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  # 1048120 19-May-2014 15:30
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I'm guessing it's a timeout issue.

The first time you request a page, it will fail, but the results will be cached somewhere along the line, perhaps even on your own PC.

The second time you request the page, it is already in the cache, so it is returned immediately, so doesn't time out.

You could try a traceroute to see where the holdup is.



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  # 1048173 19-May-2014 15:48
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I'll have to wait until I get back home now to check it tonight. Thanks for the ideas. I'll post details later on.

 
 
 
 




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  # 1048417 19-May-2014 21:18
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This is what I get from ipconfig.



The computer is set up to allow DHCP and as far as I can tell the modem is set to get a new DNS every 24 hours.

I'm not sure how to problem solve the timeout issue if that is what it is so more research needed.

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  # 1048504 20-May-2014 06:44
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Try turning IPv6 off. Hit start and type TCP, which will bring up network connections. Look at the properties of your TCP connection, and untick the box. It's something like that anyway. I've also turned IP6 off on my router, as it's not really useful yet.

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