The problem persists. Only 2 computers among 15 are causing the log entry: … DHCP offering lease without success. Both wire connected. Not Apple. There are other PCs on the net, wireless and wired, no problem with them. Operating system is Windows 7 x64 at almost all of them.
What interesting, the computers receive their IPs but they are not registered with DHCP server. Therefore if the IP is on some list or FW rule etc. - it’s not taken into account. Pity that Mikrotik pays no attention to the obvious bug. Looks like version 6.37.5 is the last bug free.
Device: MikroTik RB951G-2HnD
OS version: 6.43.12