The reason for this is because of an enhanced security feature added for all versions starting from Mellanox Onyx/OS 3.6.8004 and above - HTTP is disabled by default. Therefore, we are not able to reach the GUI after upgrading to 3.6.8004 and above.
There are 2 possible solutions:
1. Use HTTPS instead of HTTP to log into the GUI
2. You can enable http by using the following commands:
switch(config)# no web https ssl secure-cookie enable
switch(config)# web http enable
switch(config)# write memory
Now you can use HTTP and HTTPS connections to log into the GUI
Hope this helps
Oohh I see. Will try this then and will give an update.
I don't know if someone already posted something about this.
I just want to share that when we upgraded our SN2100 to v3.6.8004, the GUI doesn't load. Luckily it can still be accessible via SSH and I changed the next boot partition and it rebooted fine. I downgraded the partition from a working version and now we can manage the switch both via GUI and CLI.
Hope this helps someone who wants to upgrade to this version.