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Forum Discussion
Nighthawk R6400 problems with PC communication when using 5G band.
I am having issues with the two computers I have that I have linked via WiFi. Everything works well when the computers are connected to the 2.4G band. Both computers can connect to the 5G network (and have internet access) but when they are connected to 5G, neither computer can communicate with the other. You can’t ping (most basic form of communication) one from the other. The WiFi adapters for both machines are TP-LINK (model Archer T2U) USB wireless adapters. Win7 has been updated to the degree possible, as has the applicable FW and SW apps that apply to the WiFi elements in the network. The “system” works when the computers are connected to the 2.4G band. Compter-to-computer communication is lost when the computers are connected to the 5G band. Win7 considers the 2.4G and the 5G networks to be separate networks, so I would not expect the two computers to communicate (without some additional manipulation) if one was on the 5G net and the other on the 2.4G net. However, I would expect them to communicate if they are both connected to the same net. Anyone know why the 5G band stops the computers from talking to one-another?
2 Replies
Hank4 wrote:
Both computers can connect to the 5G network (and have internet access) but when they are connected to 5G, neither computer can communicate with the other.
Why do you think this is due to the router? Any messages that lead you to that conclusion?
My first suspicion would be with Windows. Unfortunately, I followed the advice from Microsoft and abandoned Windows 7 some years ago, on the grounds that, with no security updates for some time, it is now too dangerous to be allowed anywhere near the Internet. So I m not up to date on the workings of that version.
Win7 considers the 2.4G and the 5G networks to be separate networks....Have you checked that Windows sees both networks as private rather than public?
Thanks for your response.
I honestly don’t think that the problem is the router. The 2.4G network seems to be fully functional while the 5G network lacks inter-computer operability. There is, obviously, no difference in hardware, when switching from one network to the other. From the Win7 standpoint (unless I have missed some nuance in the setup), both named networks have exactly the same settings. I was simply reaching out to see if anyone had any insight with respect to my observations. For what it’s worth, if the computers are connected to the router via ethernet, everything works fine. There is a story behind why I opt for WiFi connection but that is for another time.
