Cannot access my Channel DVR server using the ipdaddress

fairly sure this is all the same issue.

I think the firewall is blocking inbound.
this is what my firewall settings show

or this

No, 127.0.0.1, localhost, nor the actual ipadress of the server machine from the server machine will work. Just the computer name.

dhcp lease shouldn't affect 127.0.0.1. the fact dns does work suggests tailscale is setup and working.

@predsfan
what does ipconfig report?

i took a small leap

if this works,

what happens when you ping ChannelDVR

my laptop on my local wifi does this

>ping nanoa1

Pinging nanoa1.red-fish.ts.net [100.100.34.100] with 32 bytes of data:
Reply from 100.100.34.100: bytes=32 time=36ms TTL=128
Reply from 100.100.34.100: bytes=32 time=3ms TTL=128
Reply from 100.100.34.100: bytes=32 time=4ms TTL=128
Reply from 100.100.34.100: bytes=32 time=5ms TTL=128

Ping statistics for 100.100.34.100:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 3ms, Maximum = 36ms, Average = 12ms

from my server

ping nanoa1

Pinging NanoA1 [100.100.34.100] with 32 bytes of data:
Reply from 100.100.34.100: bytes=32 time<1ms TTL=128
Reply from 100.100.34.100: bytes=32 time<1ms TTL=128
Reply from 100.100.34.100: bytes=32 time<1ms TTL=128
Reply from 100.100.34.100: bytes=32 time<1ms TTL=128

Ping statistics for 100.100.34.100:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms

Pinging ChannelDVR.local [fe80::bd91:8880:bb1e:4794%9] with 32 bytes of data:
Reply from fe80::bd91:8880:bb1e:4794%9: time=1ms
Reply from fe80::bd91:8880:bb1e:4794%9: time=1ms
Reply from fe80::bd91:8880:bb1e:4794%9: time=2ms
Reply from fe80::bd91:8880:bb1e:4794%9: time=2ms

Ping statistics for fe80::bd91:8880:bb1e:4794%9:

I am somewhat concerned that it appears to return a version 6 address and not a version 4
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 1ms, Maximum = 2ms, Average = 1ms

I did a ping channeldvr -4 and got this:

Pinging ChannelDVR.local [192.168.1.243] with 32 bytes of data:
Reply from 192.168.1.243: bytes=32 time=2ms TTL=128
Reply from 192.168.1.243: bytes=32 time=2ms TTL=128
Reply from 192.168.1.243: bytes=32 time=2ms TTL=128
Reply from 192.168.1.243: bytes=32 time=2ms TTL=128

Ping statistics for 192.168.1.243:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 2ms, Maximum = 2ms, Average = 2ms

/all just returned the v6 data

But if I do a ping from channeldvr to my normal machine, it returns the V4 data

I will give it a try

I turned off V6. I uninstalled my channel dvr server and then reinstalled it. Still cannot access it.

I am starting to get bored with this. I bought my HDHomerun because I wanted to record the Nashville predators hockey games and DirecTV stream did not carry channel 28. After buying the device and installing Channels DVR, DirecTV stream magically starting carrying that channel. So there is not a good reason to continue down this path. If I need to record an OTA channel, then I can do it via the HDHomerun app. Thank you for your trying to help me.

Obviously, something screwy is going on. The only thing I can think of is that after getting things working, I installed tailscale. I was able to get it to work. I cannot remember if I accessed the server via my android TV device after the tailsale install. But I can access folders on my server machine using the server machine's ipaddress. I can access the channel dvr server using the computer name and the 8089 port number. I just cannot access the server with the ipaddress and port number. Heck, on the server machine, I cannot access the server via 127.0.0.1:8089. No changes were made to Windows Defender. I have uninstalled Tailscale. I have removed my port forwarding from my router. There was a network command that I entered when I was getting Tailscale installed. I cannot remember what it was now. That is the only thing that I can think of that would cause the problem.

I uninstalled Channel DVR server and then installed it on my personal desktop. I can access that new server from the old server machine using the ipaddress. I hope that makes sense. I don't want to run the server on this machine but I just wanted to do some testing. I will try to find that network command.

Make sure you have IPv4 enabled on it.
If you still cannot access it using its IPv4 address, disable the PRIVATE firewall as a test.

here's my network properties for your reference


Screenshot 2026-10-04 214200

I don't remember anything for tailscale, but older versions of cdvr had instructions to disable flow control, but i think it does it for you now with a click.
Screenshot 2026-10-04 214315

Did you

TCP/IP v4 is enabled. Turning off Defender did not help.

Earlier today, when I discovered I had problems, I uninstalled tailscale in order to make sure that it was not causing the problem. So, I do not have those settings. Since the server works (accessible) on my desktop system, that indicates that the problem is machine specific. I also have a Mac so tomorrow I will install the server on that machine and see how things go. If it works, then I will retire my second Windows system. I don't think you you need to continue to fight this thing. It would be nice to be able to reinstall Windows on the second machine and start of clean. But that is not going to happen. I really appreciate your efforts to help me. Thank you.

it did just occur to me that I once ran into weird network issues on my server that ended up just needing a Full hardware initialization. or commonly called flea power drain, the network cable must be disconnected for the network card to fully power down.
(Google Search)

also could be a driver issue, my minipc needs the one it came with from 2021.

Guys, thank you for all of your efforts. I tried unplugging my Ethernet cable. I uninstalled the network adapter and reinstalled it. But access to the server via ipaddress still did not work. So sometimes one needs to go to greater extremes. Since machine is not used for anything else, I did a Windows 11 reset and essentially reinstalled the op system. Now all is working. Gosh, what am I going to do for the rest of the day to keep myself occupied. Once again thanks.

It will be interesting to see if the issue comes back after a Windows update or something.

Enjoy now that it's working!

Well, I do not intend to reinstall Tailscale.

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