Node Red not being able to open HTTP

Beno · August 21, 2024, 5:09pm

Please do a ‘trace route’ using registry.npmjs.org or the hostname of your URL (or both).

It took a minute, but we got there in the end.

It might show us how far ‘out’ the EPIC is reaching before it times out.

EDIT: Thinking about it more… The fact that you can ping it should mean that you will be able to both UDP and ICMP traceroute to it.

I’m thinking more about what Philip is saying about certs. It’s either the EPIC firmware since the problem one has older firmware, i.e., older root store certs, or there is a network MITM on this EPIC vs. the other one that is causing the HTTPS connection to fail.

hcopsc1 · August 21, 2024, 6:07pm

HI Beno, Interestingly, i wasnt able to complete the action.

Beno · August 21, 2024, 6:16pm

Sorry, I put the wrong hostname in my post…

I edited it, please try again: registry.npmjs.org

hcopsc1 · August 21, 2024, 8:04pm

Beno,

Attached the response.

Beno · August 21, 2024, 9:02pm

Well, it did the host to IP lookup, but then stopped dead.

It made it from the EPIC to the StrideLinx router and from there to the Tmobile modem LAN side and then that’s when it just failed.

Is the other EPIC that works Ok behind the exact same Tmobile modem?

philip · August 21, 2024, 9:37pm

Definitely something strange going on that pings (icmp) get through and tcp / udp doesn’t.

Can you run the traceroute, but switch the protocol to icmp and see what it does?

hcopsc1 · August 21, 2024, 10:52pm

i See the same response. I think i should just update the firmware and move from there. Ill prep for it to see.

Beno, on the modem question, the other equipment is on a separate modem, but same virtual network.

hcopsc1 · August 26, 2024, 2:01pm

HI Guys,

Just tried connecting today and doing the same tests from the other day and now its working. This is mind blowing lol.

I havent done the firmware upgrade yet.

philip · August 26, 2024, 2:04pm

Have you investigated the possibility of another device on your network having the same IP address?

hcopsc1 · August 26, 2024, 2:07pm

I thought about that, I’m going to try to lock down the IP addresses to make sure we aren’t assigning conflicting items.

Ill keep troubleshooting to see.

regards

Beno · August 26, 2024, 2:07pm

I’m not surprised at all.
There is something going in and out with the network on that EPIC.
We have been trying to get that ping node installed so we can plot it on a graph and get a visual history of when it drops out and back in and thus help you determine what the root cause is.