You indicated you've only ran some but not all of the TCP/IP commands. Run them all.
Go to the start orb and in the search box enter, event viewer. Look in the Windows logs and in System, Applications. Look for anything that's an error or warning from network related stuff. It may be under System.
On its face it sounds DNS, but could be DHCP or the NIC its self. If you go to the properties of your NIC, do you see any components added to the NIC that could be a source of an issue? Is the Internet component version 4 and 6 enabled?
Check your hosts file. I know there is a command to reset the hosts file but I can't find it. How to Edit Your Hosts File on Windows, Mac, or Linux
Go to the Windows firewall and on the left side hit restore defaults.
Start Windows in safe mode with networking. Can you reach a website?
It seems like the NIC is not performing like it should for one reason or another. It could even be router/modem related, though I doubt it.
Yes, both are enabled. Aside from VMWare Bridge Protocol, the only thing on that list that doesn't look stock is NetBalancer filter (my use of NetBalancer precedes the occurrence of the problem by a matter of weeks, and possibly months, so I don't think that it is to blame).
I've got a few things going on in the hosts file, but nothing that I didn't put there, and nothing that appeared there at the time of the incident (a few 0.0.0.0 entries for common advertising domains, and one for the old domain name of the shop phone system).
Seeing as how the problem goes away once I statically address that same adapter behind the same router on the same network, I am skeptical of all of those things. Since the problem also affects its ability to communicate with other computers on the network, I don't think that the router is a factor either.
I'll try safemode with networking next week when I am by that network again, and report back with the results.
Since if you assign a static IP you have Internet again, this to me sounds like the router/modem is not using DHCP correctly. There seems to be a routing table mess up of sorts. When you are statically assigning the IP you are not using DHCP from the router/modem to assign your computer an IP address. Since DHCP is messing up in some way, that would have an affect on NetBIOS. The ability to communicate with other computers. Wireless works because that's a different IP address.
You could try rebooting the router/modem. I would try a reboot first. Then if that fails try a reset. In fact, if you can plug right into the modem bypassing the router, does Internet work?
Funny thing for me. I have a Blu-ray player and it needs Internet access for its Apps. DHCP would not work with that thing at all, but once I assigned a static IP to the Blu-ray player I then got Internet access. Not too sure what to make of that. I do use third party firmware called Asus Merlin. I used to use DD-WRT, but now I'm thinking of going back for the features. I need VLAN and in Asus Merlin that's only available via command line which I'm not messing with. In DD-WRT it's via a simple GUI. There is a VLAN of sorts in Asus Merlin, but it's just a WIFI guest network. I used that to partition off my IoT stuff to deny local network access. Anyway.. LOL
What kind of router anyway? Is it some Cisco appliance router? I have no idea how to use those. But to bypass the router you'd want to connect directly to the source of the Internet like the modem or some other router that hands out IP addresses. If you get Internet, then the router you're connecting to is likely the issue.
I know this doesn't make any sense given this was just from a piece of VPN software, but I'm thinking the VPN may have did something router-wise. I have no idea. Like in my Blu-ray player case, I don't know why my router won't work with it. But assigning a static IP solves the issue. It could be down to protocol or something.
Quote