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1. you will have to designate the laptop or allow it to connect by entering it into the 3com router. 2. try connecting to the router via ethernet cord (that is connecting with a physical straight through cord) that came with the router. If connected with this then you will have to go into the router via the IP set 192.168..0.1 depending on the router ip for loging in. 2. Go to the "wireless setup" and enter your MAC address for the laptop in the permissions list in the router. Instructions on how to do this is at the manufacturers site. Step by step. 3. Do the following step if instructions not found. 1.Log into router 2. Verify wireless router name( on the computer) >>> ( on/off) 3.Note router name you are connecting to. 4.. Check the laptop do ipconfig /all to see current IP adresses. 5. Set the laptop up in the router by WEP KEY or MAC address. 6.Note router name you are connecting to. 7. Move the laptop about 20ft away and try to log on to the internet. This is for all routers to set up wirelessly.
This issue is most likely due to the quality of the signal between the PC and the wireless. If there is a lot of interference or the wireless devices are far from the 3COM, then the signal will be less then optimal. Sinnal quality will degrade quickly when going through walls floors and celings as the density and metal contained in these structures block wireless signals. Interference can come form other wireless devices, cordless phones, RC toys and some wireless mice and keyboards. The other factor to consider is the type of wireless being used. Wireless like all technology get better as time goes by. As new technology comes out it is categorized and classified. For Wifi there are currently 5 separate specifications for wireless. They are: 802.11 (Specless) - approx 1997 era devices. operates at 1 to 2 Mbps 802.11 a - approx 1999. operates at 6Mbps. 802.11 b - approx 1999. operates at 11 Mbps. 802.11 g - approx 2003. operates at 54 Mbps 802.11 n - October 2009. operates at 100+ Mbps If you have an old wireless device it will work with the 3COM but only at the speed it was designed for.
Unless, you can try another computer to connect or there is a tiny (and I mean sometimes pinhole) reset button to push, it may have seen its last day. It has happenned to me and I picked up a little 35 dollar Belkin that worked great.
nowaday with a Gigabit Nic u can match 802.11b 11mb/s 802.11g 54mb/s 802.11n 300mb/s i use verizon at first with PPPoE later Comcast cable dynamic u need to go to web site ip address assigned by DHCPof your 3com wless router to make sure or/and clone the router so that it has same MAC addtress as your NIC of your PC before u can get CONNECTED with the Web----(u can see the green display on the upper right of the screen of the router page after u get connected) dl