I have this problem too... for few days now so lets hope elixwhitetail can find something...
Start by answering the questions I've asked ericshin:
- Steam ID
- system specs (CPU, RAM, video card, graphics driver/suite version)
- security software installed, if any
- what happens if you disable the security software (if installed)
(The question about resolution was because of ericshin's three monitors. Never mind this unless you also have a multimonitor setup.)
Also, to both of you, I have a few network-related questions to ask:
1. How are you connected to your home Internet connection? I want a full explanation. As an example, my computer connects to my cable modem/router (one box that does both) by Ethernet, and then it plugs into the wall and out it goes. If you are wireless say so now.
1a. If you're wireless, how far are you from the wireless access point (router, modem, etc.) and how many walls are between you and the access point? What is the building constructed out of? If you're not on wireless, ignore this part completely.
2. Have you rebooted your networking equipment since this started happening? If not, follow these steps in order:
a) Shut down PC.
b) Unplug the power cables from your modem and router (if they are separate devices). Leave the Ethernet cables plugged in exactly as they are.
c) Plug the modem back in, but not the router (if it's a separate box), and wait a few minutes until the modem's lights are doing their normal thing. You may not see blinking lights signifying traffic, but you're rebooting the network so this is expected.
d) If your router is separate, plug its power back in.
e) Either way, turn your PC back on once the modem is ready, even if you have a separate router and it hasn't finished booting yet.
Try again.
Also, check the F1 console every time you test Rust. If anything changes significantly, paste it into this thread.