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At random times sockets 0 and 1, 20255 and 20256, server (slave) on V430 and SM43 are freezing up. Usually not both.... thinking it's more port 20255. I've played with the SI for timeouts. SB168 is set to power up at "1". it will still email, web server (V430) will still work, and usually port 20256 will work to let me connect and remote REBOOT the PLC, then the frozen port comes back to life. Any ideas!? I worked a long time on getting a reliable "EMAIL" logical construct; I believe I got that whipped and have had no issues lately. This STICKY PORT issue has plagued me for sometime. Any suggestions/solutions would be greatly appreciated.