I know this has been asked before, like here.
I have lately been getting activeSync Heartbeat warning from our 2010 Exchange server. I usual task is to try and make our servers run as smooth as possible, ensure all systems are updates, and run everything to as close as possible to best practices.
Now, couple things to note. We run a pretty tight infrastructure, and activeSync isn't the only service being handled by our TMG server. Below is a very basic idea of how activeSync flows.
Palo Alto --> TMG --> Exchange
So, either I take the time to investigate the Web Publishing rule and all on the TMG (It seems is setup correct according tothis, or It's something on the Palo Alto, Would have to create a fourm on their support site in suggestions.
But what would that help if the TMG will need to replaced once it's not support and EOL.
So now the question becomes, can the PA take over all the tasks the TMG did, or should we still invest into UAG server to replace the TMG? and has anyone documented the steps in doing so? migrate rules, objects, etc?