having changed location to a small office after having a talktalk connection which worked OK. I am now connected 4 PCs through a Switch and shared a printer without any problems as the Internet was from a Public connection in the same building each machine having its own wifi connector. I was instructed to install a different printer a Sharps MX-C311 via an RJ45 cable to do this I used the TalkTalk Router which worked but a strange thing happened when the router was on we lost the WIFI access on all four PCs? Router printer worked? Ipconfig reports the Lan is based on 192.168 etc and the Wifi is 10.10 etc any help welcomed as i have to face this again next week

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