I had a similar problem and discovered that the network card on the pi was going to sleep to save power. Since I ssh into my pi, that was hard to figure out, but adding a cron task to ping the router fixed it.
How often did you have to ping and/or where did you find the sleep timeout value?
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I had a similar problem and discovered that the network card on the pi was going to sleep to save power. Since I ssh into my pi, that was hard to figure out, but adding a cron task to ping the router fixed it.
How often did you have to ping and/or where did you find the sleep timeout value?