@usinjin said in Wrong date/time causing HTTP connection issues?:
Sometimes it would fail to load altogether, other times it would load slowly but the connection would reset repeatedly.
@usinjin said in Wrong date/time causing HTTP connection issues?:
I think it could be a hardware issue with the computer or the Duet itself.
@usinjin said in Wrong date/time causing HTTP connection issues?:
It appears that at times ethernet doesn't seem to re-enable after M112 (both lights on ethernet port stay off).
@usinjin said in Wrong date/time causing HTTP connection issues?:
It doesn't seem to matter the firmware. I've installed 3.5.0 rc1, r3, and rc3+4, and they all work until I need to do a board reset. At that point, I just get the error "http failed to connect" over and over again. I always have to power the board off, let it sit, then power it back on.
If I actually took a moment to examine all the information I've presented in this process, I could have addressed the real issue much earlier. I already had all the information and I chose to ignore it. I really should know much better than to fall into thinking traps like this. I guess it could be a learning experience for anyone working closely with hardware and software simultaneously. Or any project for that matter.
It clearly never was a software issue. Wireshark revealed malformed packets and long periods of retransmissions. Definitely not normal on a static network with a single endpoint.
@usinjin said in Wrong date/time causing HTTP connection issues?:
Maybe something is intermittently shorting?
Indeed. Turns out the polyimide tape I bought as a protection for the back of the Duet was not actually polyimide. It most likely is for EMI shielding of some sort, as I found it has a conductive layer. The solder joints on the ethernet port were intermittently coming into contact with it and grounding it out.
After removing the tape, the issues have not re-appeared.
Thank you to everyone who provided insight!