I have recently performed an update on my rb450g. After some head scratching when I realised my network was only partially working I learned that as part of the upgrade the ports 2-5 configuration was changed from a "switch" to a new bridge, and this was partially implemented (across port2 master and port3 the first slave). I added the other 2 ports to the bridge. However further problems soon became apparent - the DHCP server was failing to hand out addresses to "some" of the network devices. In wireshark and the Mikrotik logs I can see the DHCP address offers but the device never Ack/accepts the address and doesn't connect. Frustratingly this is true of the Ubiquiti AP's (so no wifi) and the Amazon fire stick (so no TV). Before the upgrade everything had been working just fine for some time.
I have gone through the router configuration and can't see anything out of place - but I am not an expert.
Any ideas what to check?
Many thanks in advance.