Tech Support 1 - Wifi Network (no replies)

Dear SHA Tech types

I need some help with my wifi network at home. I have a relatively large single floor apartment with one modem and three routers to give wifi coverage throughout. As far as I can understand they are set up in a chain (Modem, Router 1 Gueast bedroom, Router 2 office, Router 3 living room). Instead of being able to move throughout the apartment and stay connected to one network we have a situation where the network is essentially in four parts - e.g. when connecting to the network in the living room we can see the network twice - once from the router in the living room and again from the router in the office. In addition to this there are significant connectivity issues with the router in the living room such that we have to re-connect every time we use our phones or tablets and streaming shows on the laptop is difficult to impossible (note as we live abroad we use a vpn to access iPlayer, Now TV, Netflix etc and often we cannot connect to these services despite assurances from the VPN provider that we should be able to).

Finally the router in the guest bedroom no longer has the network name but just the name of the router (TP Link) though it still gives the connection to the network. I think that the network issues are related to the guest bedroom router issues regarding the network name and probably more significantly to the way the network is set up.

So, can any of you help or point my in the direction of weblinks that will help me resolve these issues without having to resort to spending money on a tech company that may or may not be competent (as the last two haven't been much help).