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I had Hamachi working normally for some time, then out of the blue it started giving me VPN error (showing that yellow triangle with an exclamation mark) for every single person on my networks and I wasn't able to do anything with them anymore.
I've tried re-installing Hamachi and it didn't work. Someone told me to download an older version, install it and then update, but the older versions (1.x) won't install at all, saying there was a problem installing the network driver.
So I manually deleted the Hamachi network adapter. Now whenever I re-install Hamachi 2 again, it gives me no errors, but the network adapter simply won't show up, and the VPN error continues on. I can join networks and see whether people are online or not, but I can't connect to any server on their machines anymore.
Um, is this still relevant 5 years later? Hamachi's VPN service was turned off years ago to free up the 5. network block. – YetAnotherRandomUser – 2018-12-01T01:13:00.700
Right click a client with an error, then click Details. Next to the error in the Properties page that appears, click Details. What error description do you see there? – Moses – 2013-09-10T15:49:29.873
"Failed to connect to the network adapter. The peer isn't reachable through VPN" (I had to translate it from my language, so it might be a little different than what it shows in english) – Delta – 2013-09-10T15:55:08.683
Error messages like that are searchable in the support documentation for Hamachi: Why do I get the Failed to connect to Hamachi network adapter error?, Why do I receive Failed to Connect to Engine?
– Moses – 2013-09-10T16:00:51.710I'm sorry, but that page didn't solve my problem. The notwork adapter doesn't show up in the device manager in order for me to enable it nor does it show in the network connections folder. My firewall is the windows firewall and I reinstalled it once again with those 2 services (DHCP Client & Network Connections) surely running. – Delta – 2013-09-10T16:12:05.930
Try scanning your system for malwares. Scan your system with softwares like malwarebytes or spybot(both are free and very good). I had a similar problem in which i wasn't able to browse the net and hamachi always showed the error in your system. – None – 2013-09-10T16:14:33.770
If the network adapter isn't showing up, it's possible that it was not installed properly. – Moses – 2013-09-10T16:15:20.353
Hey if your network adapter is not showing up, open Device Manager --> Network Adapters -->Check if 'Hamachi Network Interface" is enabled.... – None – 2013-09-10T16:19:29.477
The only thing listed on the device manager under Network Adapters is my nvidia nforce adapter, there is no hamachi network interface whatsoever. I'll run malware bytes. – Delta – 2013-09-10T16:21:39.610
In case anyone runs into this problem: Unfortunately the only solution for me was to do a clean windows 7 installation – Delta – 2013-09-11T03:37:13.303