Samsung dvr camera system sde-4001 cant connect to web viewe

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I am running a sde-4001 samsung camera system. I can connect to the web viewer on the one side of the network just fine, through the wifi or through a hardline but on the other side of the network it just times out. Our network goes through 4 switches its about 1/4 of a mile to 1/2 of a mile.. What I found out is I believe the samsung dvr web viewer is not putting out enough of a signal. Does anyone have any suggestions on some type of booster maybe? Whats really annoying is. Lan phones and the computers right next to it work just fine across the entire network. For the same samsung to work I have to be no more than 100 feet to get a signal.