Vodafone describes this as “the NTP issue”
This occurs when the Sure Signal device is unable to get a time fix from an NTP server to validate it has the correct time. This is normally caused by a connection with very high latency.
Possible diagnostics steps to take:
Run a speed test at www.speedtest.net – you’ll need a connection that can download at at least 1Mbit. Upload should be at least 128Kbit
Test the latency of your connection with www.pingtest.net – all three metrics (ping time, packet loss, and jitter all need to be as low as possible. Check for the ‘Line quality’ section – the MOS score should be as close to 5.0 as possible.
If any metrics don’t match those outlined above, contact or possibly change your Internet Service Provider (ISP).
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I have this issue with my Sure signal but I have very good internet speed from BT(12 mb download and 1.3 mb upload), issue is in Vodafone side!
MY SURE SIGNAL IS NOT WORKING, OH AND IF IT’S A PHILOSOPHY GAME,
When embarking on a campaign of revenge, it is wise to first dig two graves.