How can I verify if that was the case? The SFP+ port on the primary switch still shows as enabled: I've also tried multiple SFP ports on the secondary switch to no avail.  The primary switch is set as bridge priority 4096 in switch settings. All other switches would have default bridge priority.  ... View more

got it working i was using the dedicated port on the back . once i started using one of the switchports on the front it worked.  ... View more

Any hot-cold power cable will do for an MS120.  As mentioned above the switches with removable power supplies and PoE required the notched connector (C15) at the switch end due to them being in the exhaust flow.  The cable is also a slightly rougher material as it can withstand higher temperatures that may be present in those areas.  Again, if you ever need those cables they are commonly available from most suppliers.     ... View more

I assume the MR can ping the RADIUS server.   Try a simpler RADIUS secret.  I have occasionally seen a RADIUS server configured with a secret and it couldn't support some of the characters in that secret. ... View more

Does the switch have a "white" colour led on the front?   Double check the serial number of the switch in the local status page matches that in the dashboard.   On the local status page it says what network the switch is connected to.  Is this correct and does it match the network you are looking at?   Does the switch saying it is upgrading firmware by chance?  With a brand new switch it can take up to 40 minutes to come online the very first time.  This is because it goes through a firmware upgrade process to match the firmware configured for that network. Typically I plug in the switches 24 hours before I plan to install them to mitigate this process. ... View more