Can some one please help me before I pull the last of my hair out? I moved into a new apt, and I can't get a stable wifi network to save my life. To rule out most hardware problems, I experience the following issues with a WRT54GL or a WHR-54GS connecting with either a Dell WLAN 1350 or a WG511T. I experience the same problems using stock firmware, dd-wrt 23sp2, 23sp3, 24, and tomato 1.06. My laptop is the only client connecting to the AP. My microwave is not plugged in. My cordless phone is 900Mhz. I connect at 54Mbps and within minutes is degrades down to 1Mbps. The AP is 10ft away with line-of-sight unblocked access. I have 9Dbi high-gain antennas installed (on the WRT54GL). My dell connection manager shows a signal of -47dBm and interference of -90dBm. This happens on channels 1, 6, 11, and 8. Can somebody at least help me understand what could be causing this? Screenshot to illustrate attached.