Bests & Worsts Reviews from Amazon

*****Update 1-5-2018****** Received a replacement several months ago, unit worked for about 2 and half months then did the exact same thing as the original. Emailed support numerous times nothing - have not heard back. The unit is completely disconnected. I have the LB2120 Two Port version, setup was easy, popped in a ATT sim hooked everything up powered the cable modem wifi router and the 2120. Worked as expected, unhooked the cable modem feed - it failed over to ATT - hooked the feed back, returned to cable. Great - worked seamlessly for three days - got up one morning no internet. Rebooted everything worked fine again for about 4 hours, then nothing would get traffic. Rebooted just the 2120 worked fine again for rest of the day. Got up the next morning and traffic had stopped thru the 2120. Took the 2120 out of the scenario for a few days to check my other equipment. The Internet never went down. Put the 2120 back in line - a few hours later traffic stopped again. This time I took the 2120 out for a week, same thing traffic never had a problem. Installed again, worked for a day no problems, this time I left it alone to see if it would correct itself, no go. Rebooted all the equipment again stopped traffic two days later. It is not consistent/reliable enough to leave in place. This was purchased to provide failover when cable went out. I am using this with ASUS RT-AC88U Wireless-AC3100 Dual Band Gigabit Router andNETGEAR CM1000 DOCSIS 3.1 Ultra-High Speed Cable Modem, as you can see my equipment is not junk. 2120 is just not ready for primetime. The release was delayed for a reason, now I see why. I would not buy the 2120 at this point as others have reviewed it has too many problems. **** Update 7-10-2017**** The 2120 went down 240 times from 12:50 AM and 7:45 AM as it would not pass traffic. Had to take it offline. *****Update 7-17-2017***** Emailed support - have not heard back. The unit is completely disconnected. *****Update 1-5-2018****** Received a replacement several months ago, unit worked for about 2 and half months then did the exact same thing as the original. Emailed support numerous times nothing - have not heard back. The unit is completely disconnected.