For the past few months, I've been having extensive trouble with two computers on my home network. These two computers have consistently been disconnecting from the network. Even after recently replacing the network card in one of them, they still both have heavy lag, are very slow, and constantly disconnect. Both computers are entirely up to date on Windows updates and driver updates for the network cards (and the other drivers). We have tried reinstalling the drivers (to factory default) and using them with those drivers, tried the latest drivers for both, changed the router channel, updated/downgraded router firmware, reset the router,computers, and disabled/enabled network cards. The problem only persists with these two computers. The router is meant for heavy usage, and no other computers disconnect/lag.
- Both computers are Dell XPS 8500's. One has the stock Dell Wireless 1703 802.11b|g|n network card. The other has a brand new Rosewill Qualcomm Atheros AR938X [http://www.newegg.com/Product/Product.aspx?Item=N82E16833166117] wireless network adapter. (I have tried moving the card to different PCI slots to no effect.
- Both computers run Windows 10 Home
- Both computers are wireless, connected to our 2.4ghz home network. Wired connection isn't possible at the moment.
- Both computers sit on the second floor of the house, less than 30ft (or 9 meters) from the router/modem (also on the second floor).
- Both computers regularly "drop" together. When one disconnects, the other lags and the disconnects.
- The ISP is XFINITY (Comcast)
- The router is a Linksys EA7500 Max-Stream AC1900 [http://www.linksys.com/us/p/P-EA7500/]