Steam Error: Invalid Userinfo in Connect Command

This error is generated when a Friend's username contains too many characters.

To correct this issue, please update your Steam Friends username to contain fewer characters and avoid non-alphanumeric characters.

Change your Friends username

1. From the main Steam window click the Friends icon located on the bottom of the window to bring up your Friends list
2. Select Options
3. Select Edit Profile
4. Under the Profile tab in the section marked Name and enter a username with fewer characters
5. Try connecting again