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Solved
Could a GS748T kill a GS308e??
OK, this one is strange (to me). I thought all was going swimmingly with my new GS748Tv5... I even successfully changed the management VLAN after a heart-stopping pause. (It wouldn't talk to port...
I think I've solved this one. (Obviously) I can't be certain exactly what caused this...
(Background: my gs308e was working perfectly a few days ago. I logged in and recorded (manually) a few configuration parameters.)
Here's what I discovered through careful testing:
1) The gs308e no longer is willing to talk to modern browsers. AFAIK I didn't change anything. And the firmware is not new either. On a hunch, I tried a bunch of browsers...
2) It WILL talk to old IE, Internet Explorer. Unfortunately, my copy won't just open... now Microsoft Edge has mangled it and forces me to MS edge... and they claim I just need to use the built in "IE Mode" button.
3) IE Mode button doesn't exist. But google has an addon, "Legacy Browser Support for IE Mode in Edge". Install that. It works when you load the switch UI with this enabled!
4) Switch then complained about a bad password?!! Oh no... switch had fully reset itself!
Well, at least I have the switch back đ
Two observations here. K.I.S.S. as possible!
PapaPeteH wrote:
Sometimes it loses its IP address (known bug),....
Sources, references? The known operational (design) issue is that all Plus switches tend to fallback to a default fixed IP address as per the books in case if the dhcp server isn't reachable (in time), eg. after a power failure.
PapaPeteH wrote:
But any port 80 (HTTP) packets are RST'd. (Actively blocked). I absolutely cannot connect!
Have captured a packet with the RST, or is this just a guess? Have missed to change the PVID for the newly introduced management VLAN?
Wireshark showed the RST's. 'twas quite frustrating until the reboot / delay.
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