I have been using the Azure Point-to-Site VPN to replace the existing Azure Endpoint Connect service and I have been noticing some troubling losses of VPN connectivity for clients. I get an "Error 0x800704D4: The network connection was aborted by the local system error" when trying to connect to the gateway from any of the clients I currently have configured.
I have been using the Point-to-Site VPN since June 28th. I observed a previous outage like this on July 1st at 10:00 AM Central time. It lasted for approxiametly 12 hours and I had to disconnect all clients from the Gateway before it would reslove itself. This appears to be a loss of certificate binding to the gateway, possibly caused by a migration of the virtual network or some other Azure related function. I was able to get Microsoft to look at the logs for this time period for my Virtual Network and I was told that "there were gateway errors during that period".
I am currently experiencing another outage. This one has been going for almost 14 hours now. All clients have been disconnected from the gateway. I cannot ping the Gateway subnet's default gateway address from inside the virtual network as I usually can. It appears like the gateway is not even there. The proceedure in this post succeeds, so gateway name resolution does not appear to be the problem.
Point-to-Site VPN does not connect (Error 0x800704D4: The Network connection was aborted by the local system)
Any suggestions would be appreciated.