I'm betting it's your anti-virus or firewall. It's not Windows 7. Even if it is the OS, it probably can be fixed. I'd completly uninstall those products once and see what happens. They can and will mess up the TCP/IP stack. I'm on an educated hunch that this is what the issue is though.
You said you have AVG? Run this:
Uninstalling AVG AntiVirus using AVG Clear | AVG
It's far better to use an anti-virus tool they made for removal. Some of those anti-virus products bury themselves so far in the OS it's a living nightmare.
I don't even use an anti-virus. I use some unorthodox methods. Funny though. I haven't gotten a virus since I ran Windows 98se, and I was running the aforementioned AVG of all things. Slipped right on through. That was before I knew more about computers and what have you. I used to swear by Avira, then they went to crap. Then I went with the free version of Bitdefender, then that went to crap as well. So the three primary protections I have in place are: How I use the Internet, periodic data backups and OS clones, and running ALL browsers and Thunderbird in a highly configured sandbox known as Sandboxie. But there is much more that I don't feel like going on about. It encompasses knowing how to prevent a reverse shell, polymorphic malware (ransomware) and other crap of the hacker realm. When you understand it, you can prevent it is the moral of the story. Many people don't. So anti-virus companies take advantage of that with a paid for product that WILL sell you out.
Anyway, in addition to removing the anti-virus, reset the whole TCP/IP stack. You can do that with the commands I added to my repository
here. Just click on the source folder. They're all there.
Oh, if this works and you need an anti-virus solution, I'll offer some advice.
Come to think of it. Ping this IP once please.
Pro tip. Many IP addresses can't be pinged, or they rate limit the ping to combat an ICMP flood. So a DNS provider from OpenDNS, Google or CloudFlare is what should be used unless you know there is no rate limiting or blocking of ICMP packets with another IP. I already tested the address I had you ping in the batch file myself to make sure it wasn't rate limited or blocking ICMP packets.