Dedicated Server Expert Needed

My project is essentially complete and I’ve managed to get it connected to Steam but have now set it up as a dedicated server and come across an issue I cannot seem to resolve. It looks like everything is working but the client isn’t connecting now. No errors and everything compiles and cooks properly. I’m sure it is something obvious to someone who has done this before. If you are an expert in dedicated servers and Steam, contact me with your experience, availability and rate. This should be a short job.

I’m open to hosting this on service such as AWS or Azure if you can make it happen.