[starik36]

> employ people who are willing to become deeply knowledgeable in how TCP works

I used Microsoft's SignalR library. It knows TCP pretty well and handles most of the common pitfalls nearly automatically.

> customers to reconnect all at once.

That is definitely a problem. So we had to code it from the get go with the assumption that either the network will go down or the server will be bounced for an upgrade.

Actually most of the issues I encountered had to do with various iPad versions going to sleep and then handling WebSockets in different ways once it woke up.

[tata71]

Hosted? How are your costs? I hear this catches people sometimes.

Any other advice for SignalR?