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55 posts

Master Geek

#88724 22-Aug-2011 14:15
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I am investigating internet connection reliability using a Mini PCIe 3G/UMTS/HSPA module module on the Vodafone NZ Network (No problems on XT!). The problem is the the connection appears to "go to sleep" when no traffic goes over it for a while. I understand it drops back to UMTS from HSPA when the link is idle. It is just that it doesn't "wake up" very quickly when I want to send data. This was demonstrated by a ping taking 2minutes to get a reply. (The ip address is Vodafones DNS server)

64 bytes from seq=9 ttl=55 time=126783.639 ms
64 bytes from seq=11 ttl=55 time=124776.194 ms
64 bytes from seq=10 ttl=55 time=125783.600 ms
64 bytes from seq=12 ttl=55 time=123792.079 ms

At other times the ping time varies hugely.

64 bytes from seq=156 ttl=55 time=89.974 ms
64 bytes from seq=157 ttl=55 time=96.890 ms
64 bytes from seq=158 ttl=55 time=110.475 ms
64 bytes from seq=159 ttl=55 time=124.140 ms
64 bytes from seq=160 ttl=55 time=89.968 ms
64 bytes from seq=161 ttl=55 time=96.317 ms
64 bytes from seq=162 ttl=55 time=96.621 ms
64 bytes from seq=163 ttl=55 time=151.710 ms
64 bytes from seq=164 ttl=55 time=96.317 ms
64 bytes from seq=165 ttl=55 time=38273.128 ms
64 bytes from seq=166 ttl=55 time=37268.934 ms
64 bytes from seq=167 ttl=55 time=36272.193 ms
64 bytes from seq=169 ttl=55 time=34261.349 ms
64 bytes from seq=168 ttl=55 time=35268.080 ms
64 bytes from seq=170 ttl=55 time=33257.793 ms
64 bytes from seq=171 ttl=55 time=32253.527 ms

Is this just me or is it just what you get using Mobile Broadband. I am using the APN "internet" if that makes a difference.
Are different settings required for a PC type connection rather than a phone connection?



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19282 posts

Uber Geek
Inactive user

  #509964 22-Aug-2011 14:31
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please use the APN the internet APN is not a production APN

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