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Lee Halls
Works at Plastic Omnium
Attended Merrill School
Lived in Derby
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Lee Halls

Troubleshooting  - 
 
RPi wifi (maybe ethernet too) connection issue.

I'm curious to know if anyone else has come across this issue and if so what your fix was. For a long time i've ran my pi's headless and only ssh'd into them but often i would find that to all intents the pi had lost its network connection ie when i wanted to tweak the python code or update i could not ssh in. At this point i'd usually just hit the off switch (pi was not easy to access) and reboot but since i set up myself a geeks den i now understand more.

The pi still has network access, it will ping google and communicate outward with no issues but it has disappeared from the router listing and cannot be pinged nor ssh'd into. If i repeatedly ping my router from the pi it does eventually re-appear in the listing and i can once more ssh in but this assumes i have a keyboard/screen plugged to allow this.

This has definitely happened over wireless (Belkin N300 wireless on Realtek RTLF8192CU to a Netgear R7000 router) but i also think it has happened over the hard wired connection too because when i check the data uploads they are still happening but the pi is not accessible.

I' m a little stumped.

[edit] having had my obvious deficiencies pointed out :-) the following may clarify things;

PSU - All Pi rated 5v@2a
Pi - Model B
Pi revision as reported by cpuinfo - 000e

One of these is an early pi and it might be worth buying later models
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Philip Wright's profile photoPetr Sedlacek's profile photoLee Halls's profile photo
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Hi +Petr Sedlacek the pi is upto-date i regularly run an update check its one of the reasons i came across the issue. I'm beginning to realise my question is poorly asked and i may have been better asking what could i do to identify the issue if i catch it occurring.

I've never heard of ARP though i'm now learning thank you, and having searched i found the following which whilst not raspi related it may start pointing me https://alpacapowered.wordpress.com/2012/08/06/linux-not-responding-to-arp-request-from-juniper-firewall-with-subnet-ip/comment-page-1/
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Lee Halls

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Looks like the Note 4 is finally getting Lollipop or at least a 979.43mb download suggests it is :)
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Little fellas second photo shoot 🐶
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Argh he is gorgeous xx
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Have him in circles
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Lee Halls

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Hmm now I see why my external temp sensor had stopped working... wondered why no low battery alarms. #raspberrypi #ciseco
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Trying to downsize the number of online accounts ... it's a difficult web of interconnections and I'm positive something is going to get lost!
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Have him in circles
44 people
MONSOLEIL IMMO votre agent immobilier en Espagne's profile photo
Olivia Crowley's profile photo
Frank Rowley's profile photo
Najiah Musa's profile photo
Keith Halls's profile photo
Chris Ball's profile photo
Matt Hammerton's profile photo
‫حكمت عادل‬‎'s profile photo
bethan jenkins's profile photo
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  • University of Derby
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occasionally out of his depth, out of bacon sandwiches, snookered and out of his mind, but never out of guile"
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PPA - Assembly Engineer
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    PPA - Assembly Engineer, 2014 - present
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Derby - Norway - Sweden - Germany - Finland
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