Unable to access C7 web portal from one computer

[user4116]

Have a strange one that I haven't been able to figure out.

I am unable to access my C7 from my main computer. No matter the browser, or user, I get a "The connection was reset" error.

I can ping the hub from the problematic computer.
Invoke-Webrequest in PowerShell gives me: "The underlying connection was closed: The connection was closed unexpectedly."
I can access the hub from other devices on the network.

I don't see anything in the Hubs logs, my computers logs, or my firewalls logs.

Stumped on where to go from here, if anyone has any pointers I'd be grateful.

[rlithgow1]

Are you on the same subnet as the Hubitat?

If so try clearing your browser cache

Check your dns

If running a vlan you may have to use an endpoint on hubitat so it can access other vlans

[bertabcd1234]

@user4116

my firewalls

This sounds like the most complicated part of the setup you described and therefore the most likely to be to be a problem, unless there are more details you aren't sharing (multiple VLANS, maybe?). Besides the above, I'd suggest temporarily disabling it to see if you can isolate the cause of the problem to this. Then you'll have some idea of what to do next.

[user4116]

I do have separate VLANs. Main is 10, Hubitat is 40.

Tried changing the PC to 40, no change.

The only firewall that would be in between the PC and the hub would be my main firewall.

Every other device on VLAN 10 can reach the hub, just not my main machine.

This was not always the case (worked fine up to a year or so ago) and I have not tried resetting the hub yet to rule that out.

Not sure if a packet trace would help.