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Is the agent behind a load balancer? If that's the case, Ask the IT to configure a sticky session in the load balancer of the agent and try again.
Step 6 - Verify if
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there is a Proxy used on the agent server
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If you do use a proxy, it should be able to access this URL : Mygrower.culturatech.com as a proxy on agent server. Make sure it is a valid URL.
Step
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Step 8 - Decrease long polling time out
Gateway side, put a small value in the long polling timeout ex: 59 in order to test connectivity to agent and gateway. Config file of gateway service.. only useful when alot of agents are having issues.. would not try if only 1 or 2 agents are not working.
Step 9 - Verify that zero network configurations have changed on agent server
Check if new server patch has been installed or network configuration has changed like DNS or authentication changes or even patches have changed on client server.
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