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Re: [EXTERNAL] Re: [RaspberryPi-4-HamRadio] SSH Disconnects

 

Also, consider setting up the TCP Keep-alive feature in your PuTTY configuration (you've already saved it, so you can just double-click to restart the session, yes?).

Select your session from the list, then click the Load button... Under the "Connection" menu item, select the checkbox for TCP keep-alive, and then go back to the session tab, and save your configuration again. This may also be enough traffic to trigger DHCP to renew your lease again...

Best regards,

-Z-

-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Ray Wells via groups.io
Sent: Tuesday, June 29, 2021 3:01 PM
To: [email protected]
Subject: [EXTERNAL] Re: [RaspberryPi-4-HamRadio] SSH Disconnects

Just a couple of thoughts off the top of my head:

is the DHCP lease in the router expiring in the time frame stated?

have you looked at dmesg to see if anything is reported?? Use (sudo) dmesg -T? to time stamp the entries.

Ray vk2tv

On 30/6/21 7:21 am, Tom McKee K4ZAD wrote:

I am running a WSPR TX using a Pi V1. It's WiFi controlled via my
router and Putty SSH on my main PC. Putty is set to send frequent
"keep alive" requests, and this gives me continuous control and
operation during the day.

However, each night around 0130 to 0230 UTC the connection is broken,
and I have to log in to the Pi again. The message that Putty pops up
to indicate the broken connection says that the Pi broke the
connection. This is strange as there must be many applications where
continuous log-in would be essential.

I've never done much with the Pi other that getting the WSPR TX going,
so I don't know much about the Pi OS. Is there is something built into
the Pi OS that automatically logs-out every 24 hours in the middle of
the night? If so, can this "feature" be disabled or can some "keep
alive" setting change or software be added to prevent this from
happening.

Any help will be much appreciated.

Thanks,? Tom?? K4ZAD

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