Just Checking
Regular Contributor
I purchased a RT-AC87 router last week (refurbished on sale for US$149 at Newegg) because I installed all the other Asus routers I had and needed a backup. I decided to test this new router out and compare it to my RT-AC66 router that I use in my own home.
My research indicated that the RT-AC87 with stock Asus firmware has problems with wireless disconnects so I installed the latest Asus-Merlin 378.55_0 firmware. I normally never run the stock Asus firmware anyway. All the other Asus routers I use/maintain have John's Fork 374.43_2-13E1j9527 firmware installed. That firmware provides me with routers that are high reliability, excellent signal strength on both 2.4GHz and 5GHz bands, and no disconnects. I also replace one of the antenna on the RT-AC66 router with a 17dBi High-Gain omni-directional antenna to boost the 2.4GHz signal strength.
For my testing, I set the RT-AC87 at 95% for both 2.4GHz and 5GHz bands. I set the RT-AC66 at 110mW for the 2.4GHz band and 120mW for the 5GHz band. I set the antenna positions at what I found to be optimum for each router. The routers were side-by-side and at the same elevation. Since my network gives me the ability to have multiple WANs, both the routers were connnected to the Internet and fully operational on separate networks. I tested the signal strength at various locations using a HP Elitebook 8460p with Intel WiFi card (an N card which only allows a maximum of 300Mbps) and a Samsung Galaxy S5 which has AC WiFi capability and link rates up to 867Mbps.
My observation is that I am not getting as high a signal strength or link rate on either the 2.4GHz or 5GHz bands from the RT-AC87 as I do with the RT-AC66 router. The measured signal strength is about 6-10dBi less with the RT-AC87 on either band than the RT-AC66. That is a huge difference. The link rate was about 25% lower with the RT-AC87 than with the RT-AC66. I did some quick wireless transfers using the HP Elitebook 8460p and saw an actual transfer rate (upload and download) difference of about 15%-20%, with the RT-AC87 being the loser. I tried both 2.4GHz and 5GHz bands. I even tried switch the 5GHz band on the RT-AC87 from the 153 channel down to channel 44 to see if it would make a difference (not even at 20 meters away through several walls).
Is the 378.55_0 firmware on the RT-87 router giving that much of a hit against that routers performance? If that is case, what can I do to improve it? I tried to change the antenna positions and even the best position was no better than I reported above. I tried switching out one of the stock antenna for a 17dBi High-Gain antenna. That improved the 2.4GHz measured signal strength from -33dBi to -21dBi but changed the 5GHz signal strength from -36dBi to -44dBi. Implementing beam-forming, or not, didn't make a lot of difference and the RT-AC66 still outperformed the RT-AC87.
I have 36 wired/wireless clients on my RT-AC66 router and it handles them without a hiccup. I am still setting up the RT-AC87 for DHCP assignments so I can switch out the routers to test how it handles the load from a large number of client devices.
So far, I am very disappointed with this RT-AC87. Should I just send this back and get another refurbished RT-AC66? I can buy those for US$94 and they use the Fork firmware. I like the AI Protect feature of the RT-AC87 and the USB 3.0 is actually functional at high speed. Those features are not as important to me as reliable and high speed wireless connections.
I also tested the RT-AC87 against a RT-AC68 and the RT-AC87 lost out there too. I just don't like the RT-AC68 routers because the ones I tested run hot (IMO) and drop more wireless connections than the RT-AC66 routers.
My research indicated that the RT-AC87 with stock Asus firmware has problems with wireless disconnects so I installed the latest Asus-Merlin 378.55_0 firmware. I normally never run the stock Asus firmware anyway. All the other Asus routers I use/maintain have John's Fork 374.43_2-13E1j9527 firmware installed. That firmware provides me with routers that are high reliability, excellent signal strength on both 2.4GHz and 5GHz bands, and no disconnects. I also replace one of the antenna on the RT-AC66 router with a 17dBi High-Gain omni-directional antenna to boost the 2.4GHz signal strength.
For my testing, I set the RT-AC87 at 95% for both 2.4GHz and 5GHz bands. I set the RT-AC66 at 110mW for the 2.4GHz band and 120mW for the 5GHz band. I set the antenna positions at what I found to be optimum for each router. The routers were side-by-side and at the same elevation. Since my network gives me the ability to have multiple WANs, both the routers were connnected to the Internet and fully operational on separate networks. I tested the signal strength at various locations using a HP Elitebook 8460p with Intel WiFi card (an N card which only allows a maximum of 300Mbps) and a Samsung Galaxy S5 which has AC WiFi capability and link rates up to 867Mbps.
My observation is that I am not getting as high a signal strength or link rate on either the 2.4GHz or 5GHz bands from the RT-AC87 as I do with the RT-AC66 router. The measured signal strength is about 6-10dBi less with the RT-AC87 on either band than the RT-AC66. That is a huge difference. The link rate was about 25% lower with the RT-AC87 than with the RT-AC66. I did some quick wireless transfers using the HP Elitebook 8460p and saw an actual transfer rate (upload and download) difference of about 15%-20%, with the RT-AC87 being the loser. I tried both 2.4GHz and 5GHz bands. I even tried switch the 5GHz band on the RT-AC87 from the 153 channel down to channel 44 to see if it would make a difference (not even at 20 meters away through several walls).
Is the 378.55_0 firmware on the RT-87 router giving that much of a hit against that routers performance? If that is case, what can I do to improve it? I tried to change the antenna positions and even the best position was no better than I reported above. I tried switching out one of the stock antenna for a 17dBi High-Gain antenna. That improved the 2.4GHz measured signal strength from -33dBi to -21dBi but changed the 5GHz signal strength from -36dBi to -44dBi. Implementing beam-forming, or not, didn't make a lot of difference and the RT-AC66 still outperformed the RT-AC87.
I have 36 wired/wireless clients on my RT-AC66 router and it handles them without a hiccup. I am still setting up the RT-AC87 for DHCP assignments so I can switch out the routers to test how it handles the load from a large number of client devices.
So far, I am very disappointed with this RT-AC87. Should I just send this back and get another refurbished RT-AC66? I can buy those for US$94 and they use the Fork firmware. I like the AI Protect feature of the RT-AC87 and the USB 3.0 is actually functional at high speed. Those features are not as important to me as reliable and high speed wireless connections.
I also tested the RT-AC87 against a RT-AC68 and the RT-AC87 lost out there too. I just don't like the RT-AC68 routers because the ones I tested run hot (IMO) and drop more wireless connections than the RT-AC66 routers.