I use Spectrum as my ISP and in Filezilla, WinSCP, Putty, MobaXTerm I timeout after about 3-4 minutes and have to reconnect. I have discussed it with my ISP and they swear it is something to do with my computer (or program) but I do not timeout while on other internet lines, Only my main home internet. I have a Motorola router, 300mbps Connection (Usually 230-320) and Spectrum 300 plan.

  • Is the connection idle when it times out? – Appleoddity Dec 6 '17 at 3:04
  • Yes, But for no more than 5 minutes. – NW581 Dec 6 '17 at 20:44
  • That doesn’t matter. You need to enable keepalives in your clients to keep the connection active. Stateful firewalls only keep a connection open for so long. This is not just an issue with Spectrum, this is anywhere, except the time may vary. – Appleoddity Dec 6 '17 at 20:46
  • Yes, But I have friends with Spectrum as well and I never time out with my computer at their house. – NW581 Dec 7 '17 at 18:23
  • i have added a Keepalive to WinSCP to see if that fixes the issue. – NW581 Dec 7 '17 at 18:28

I have fixed this issue by doing the following:

In WinSCP:

Site>Edit>Advanced>Enable Keepalives (I did every 30 seconds)

In MobaXTerm:

Settings>Configuration>SSH>Check "Keepalives" box

In FileZilla:

Edit>Settings>Connection>FTP>Enable FTP Keepalives

Thanks to Appleoddity for pointing me in the right direction.

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