So adapter works fine.īelow are images of the found serial header. Serial console works and was able to break into CFE. So far same with previous user the 4920 will not respond to a break command CTRL+C or CTRL-Break to get into CFE.įor testing I switched the USB TTL serial adapter to an old Cisco VEN-401 5Ghz WAP.

Then the device crashes looking for some offset at 0x3e004. Connect receive pin to TX on device after power on. Both Ethernet port lights turn on and the front lights also stay on with no activity. If it is device locks up and will not boot. Serial port receive can not be connected during power on. GND 0V Continuity to multiple points on various grounds. Pin out from pin one square hole with dot. The header I used is J13 next to the smaller heat-sink on the top of the board. They referred me to advanced support but I have not received a call as of this time.I was able to serial into the device. Of course I have contacted support using the SmartHome app with no luck.

Keep in mind the extenders were working as before for about two days. It appears that something has changed in the personally owned Gateway that is not allowing the extenders to work as before. I have even connected the extenders directly to the Pace Gateway using one of the four ethernet connections on the back of the unit with no luck. I have tried everything from rebooting the extenders, the Gateway and all devices on the network. On Wednesday morning (27th), I discovered that BOTH AirTies 4920 extenders were flashing red lights.

All systems were working including the two AirTies 4920 extenders. I purchased a Pace 5268 Residential Gateway and installed it on Monday (25th) with absolutely no issues. The installation went smoothly and all systems including the extenders were working great.Ī month later, I discovered that AT&T was now charging me a 'rental' fee for the replacement Gateway. In February of this year, I discovered that the Pace 5268 Gateway had an issue with the 2GHz radio, so AT&T provided me with a new (refurbished) Pace 5268 Gateway. Both extenders were operation with all green lights, etc. I used the network Cat5e wiring to connect the extender to the Gateway. Eventually, I added a second extender (AirTies 4920) out in my garage. The extender worked great during this time using the direct method. I did not use the WPS pairing method that is suggested in the instructions. My house has Cat5e wiring throughout so I just connected the extender to the Gateway 'directly' using the network wiring. After a couple of months, I added one (1) AirTies 4920 extender and placed it downstairs. The Gateway is located upstairs in a master bedroom closet. I have a 3000 square foot, two story house. They provided me a Pace 5268AC Residential Gateway. I have had AT&T High Speed internet service for over two years.

Att airties 4920 firmware download