I have a cisco 891 router, and 3 unmanaged switches that i would like to use to segment my small office network into 3 VLANs groups to help reduce out current bottleneck we are having in our network. From everything i read i should be able to setup 3 VLANs on the router, and pick 3 out of the 8 ports on the router to be switchports for each of the 3 VLANs, and each of the 3 switches would connect to those.
My question is, when i setup the VLAN i cannot access the internet, though the inital VLAN 1 which currenlty has all our office computers sharing 1 switch and 1 VLAN works fine, any ideas? Is segmenting our network via 3 switches and 3 VLANs going to help with overall bandwidth?
My last question is, what are the proper steps to setup each VLAN on the router so i can access the internet with them and achieve the increased bandwidth through segmenting each office group?
I am new to cisco routers, so any help you can give me would be great.