Opened a support ticket but figured I'd ask here as well in the meantime.
We had a load balancer pointed to frontend serverA running 8.1. To minimize downtime we spun up serverB; restored the project, upgraded to 8.3; resolved the migration changes, then redirected the load balancer to serverB.
Clients are still connecting to serverA. Even when I RDP into serverB and use the URL to hit the gateway or project it redirects to serverA. I did a flushDNS and then it still resolves to serverA. IT has assured me the load balancer is pointed to serverB now.
Wondering if anyone has run into this before. I'm not clear if this is in the Ignition / Web server / Gateway network settings or is this an IT / DNS / Cache related issue?
Edit: I turned the web server public address off on serverA during the redirect as well. Not sure what else there is to set.