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What current FW version is loaded?What hardware version is the 4500?What wireless mode is the 4500 set for? Mixed?Any other WiFi in the area? Any Cordless house phones?
3) Mixed: n, g, & b> Try using Single Mode G to test, they try Mixed mode G and N. No need to broadcast A or B since most devices are using G and N now days.5) Yes. > What frequency are these cordless phones. If around the 2.4Ghz or 5Ghz range, this can cause interference.
Theoretically they shouldn't. Not sure if they do any broadcasting while off or not. I would do this if you can, turn off ALL wireless and cordless devices then test out your connection again. I notice that some A2 hardware seems to be exhibiting some wireless issues more than A1's are. I would also check the channel to. Try using 11. I would also recommend setting up static IP addressing for ALL devices connecting to the router.Turn off any Advanced DNS services and make sure your Primary and 2ndary DNS IP addresses are filled from your ISP in the Basic/Internet/Manual section. Do you remote from with in your house or remote from work?