Some Devices No Longer See WIFI

[jmsim]

I have a problem that involves my Netgear wndr3700 wireless router. Suddenly all wireless devices (3 iphones, printer, 2 laptops) that were connected to it at about 6 PM yesterday no longer see our home wifi --they DO see other wifi networks. The strange thing is that my husband's devices (phone and laptop) that were not home at the time, still connect to our wifi with no problems.

--I noticed a device in the Admin console that I did not recognize that also connected. Based on the MAC address it was a device with vendor Arcadyn, which I am not familiar with
--I have reset the router to factory settings that device is now gone, but our devices still don't see the wifi any longer

My only thought is that a virus/worm came in through one of the iphones (not jailbroken) or laptops and breached the wireless router for the devices that were connected at the time. Is that possible?

So the bottomline is the router works fine for devices that were not connected to it at the time of the incident. Any thoughts/advice? Would replacing the router resolve this?
Thanks!

 

[mauller07]

if you have reset the router to factory defaults then they will not connect because the router will now have the default settings for the wireless connection.

you need to go into your routers wireless settings and change the SSID to something you know and change the password for connecting, then go onto each device and connect them to your wireless again.

you will also most likely need to re enter your internet connection details if it is a modem router unless you have a separate modem.

 

[jmsim]

Yeah, I changed the SSID and the passcode, however, the devices still don't recognize the wifi at home. For instance, on my iphone when I choose "Other network" and enter the SSID and passcode, it says it can not find network "wifiname". Same issues as before the reset.
Thanks

I have the phone at work now and was able to connect to the wifi there without any problems.

if you have reset the router to factory defaults then they will not connect because the router will now have the default settings for the wireless connection.

you need to go into your routers wireless settings and change the SSID to something you know and change the password for connecting, then go onto each device and connect them to your wireless again.

you will also most likely need to re enter your internet connection details if it is a modem router unless you have a separate modem.

 

[mauller07]

try disabling the wireless security on the connection first then see if the devices will connect.

then change it to wpa psk2 AES and see if its a problem with the devices and the security settings.