Hello, I’ve got a question about how the MikroTik board (currently a 493G) handles the DHCP Client, we’ve got an AT&T Modem (2210-02-ATT) that does some strange type of NAT when handing out the public IP to the client, and sets its DHCP server to hand the public IP out as a 10min lease. I know in windows the client will try to renew its DHCP lease when 1/2 of the lease time is expired, in my case every 5min. does the RB493G when running a DHCP Client do that as well?
The reason why I’m asking is we seem to lose internet w/o any reason, normally we reset the modem remotely and things start working, but today it went down while I was in the office and i did some testing, when moved to a laptop from the RB, it started working again, moved back to the RB and low and behold, it works… so that has me wondering if its not an issue w/ the dhcp.
Mikrotik documentation says the following about the mikrotik dhcp SERVER, but does not explicitly state it on the dhcp CLIENT page, but it is implied:
lease-time = The time that a client may use the assigned address. The client will try to renew this address after a half of this time and will request a new address after time limit expires.
Why don’t you watch the dhcp client in mikrotik countdown and see when it renews?