If you do some reading online the experts advise that changing the subnet mask needs careful planning. One thing they advise is to change the lease tone down to an hour a day before so all devices have short lease times, plus plan how many addresses you need, especially is this IOT world we have now.
Also note that some routers reserve addresses on lower subnets, so you don’t get the full expected allocation. For example, Draytek routers only give you 4 addresses on /28, as they reserve the rest. I had to use /26 to get enough addresses for my house due to the reservations.
Also note that some routers reserve addresses on lower subnets, so you don’t get the full expected allocation. For example, Draytek routers only give you 4 addresses on /28, as they reserve the rest. I had to use /26 to get enough addresses for my house due to the reservations.
