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Lacrosse343
Lacrosse343

Reputation: 841

Can't connect to one EC2 instance in the same security group of another accessible EC2 instance

I have two EC2 instances running Windows. They are both in the same security group which allows for all outgoing ports, but only RDP ports from my IP. What I can't figure out is that both, to my examination, have the same security and networking settings, but one connects through RDP but the other one doesn't.

Any suggestions for settings to look at?

Upvotes: 0

Views: 475

Answers (1)

Lacrosse343
Lacrosse343

Reputation: 841

After a few attempts of download the .rdp file, checking the inbound rules, running nslookup myip.opendns.com resolver1.opendns.com to see my IP just to make sure I wasn't going crazy.

Ultimately what solved the problem was restarting my own computer and running the .rdp file. Not sure why, but maybe my computer was sending stale configuration data.

Upvotes: 0

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