PC hangs for 1 second, every 30 seconds, while playing TF2. Does not occur with newer games

Solution 1:

I had the same problems with a recent Windows 7 PC on various online games like Team Fortress 2 and League of Legends. This behavior is likely related to network other than CPU or GPU.

You should solve it my disabling network throttling feature in Windows 7:

1. Open regedit with Administrator privileges
2. Go to key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Multimedia\SystemProfile
3. Modify value of NetworkThrottlingIndex (default is 0x0000000a) to FFFFFFFF (0xFFFFFFFF)
4. Reboot

Solution 2:

Check task manager to see if some other process is active twice a minute and taking up all your resources CPU/RAM/network.