I have 5 branch offices that I currently link to each other using some Linksys BEFVP41's. When the traffic's slow the connections are stable, but I find as the network grows, and more and more traffic is crossing the VPN tunnels, the connections die and I need to disconnect and re-connect more frequently for them to work.
I am probably hitting the limit of this consumer grade product, and am wondering if any has any suggestions as to what I can replace these Linksys units with?
I have one or two users in each office that might want to connect in from home or on the road; ideally I'd like a device that allows for client-less operation to reduce adminstrative hassle so I don't have to answer questions like "What do you mean I have to install software?" As well, the device needs to support 4 simultaneous site-site tunnels.
I'd like to spend less than $1000 per office, so I'm thinking Cisco is out of my league, pricewise. Other brands that I've heard good things about are WatchGuard and SonicWall.
Any brands and/or models that work or should work well for my situation? Places to buy?