Hi,
I have 2 EC2 Windows instances running for months and now I cannot connect using Remote desktop.
It seens only ports 80 and 443 are still ok. Other ports I used like RDP(3389), MySQL(3306), Firebird(3050) etc. are not acessible anymore.
I tried to create a complete new instance, with new security group and still can't connect with RDP.
Anyone know what could have changed so No instance allows RDP connection anymore?
Thanks.
AWS 공식업데이트됨 2년 전
Is your server residing in Public Subnet with IGW attached to it?
Yes. I'm always been able to access any service from any computer on internet. But now, suddenly, I cant connect with RDP (3389) or connect to Mysql (3306). IIS web Server works (ports 80 and 443). I didnt change anything. It just stops working. Newly created instances can't be accessed too.