RT-AC68U / RT-AC68P / RT-AC1900 / RT-AC1900P

[cybrnook]

What is the maximum VPN speed that RT-AC68U can achieve via OpenVPN?

50Mbps

 

[Nigel Jones]

Interesting discussion about the AC-68u varients here.

Last week I purchased a RT-AC3200 (close call to an A87u which I skipped due to the odd wireless setup). Do I need dual 5 Ghz? Nope, but I did fancy the 1 Ghz vs supposed 800 Mhz in the 68u.

I've since learnt the AC3200 is hard to overclock due to bootloader restrictions, whilst if I'm not mistaken the latest AC-68u available in Europe likely has a 1,4 Ghz part anyway, and is effectively a downclocked AC-68p, so I'm now wondering whether to order an AC-68u from Amazon UK (either new, or amazon warehouse) to see if I get a fast version. If so, I'm thinking it would be better for general routing than the 3200.

My internet speed is 220/20 currently, though 330 is a possibility. I may well have some features enabled that affect hw accel, though so far I think some is still enabled on the 3200
(Update: cut through is still on, not nat accel. I have enabled traffic diags, AI, and Adaptive QOS. the first two more playing, the qos though I quite fancy leaving ... which will mean the router is more cpu bound, hence this is a prudent question here)

So in summary if the safe speed the the 68u is only going to be 1 Ghz I may as well stick with what I have, but if there's a fair chance of doing faster, reliably... then I may be better off returning and getting the 68.

thoughts?

 

[Nigel Jones]

The RT-AC3200 and the RT-AC68 are different routers, check the comparison table in the first post.
The RT-AC3200 is a so called 3-radio router (1x 2.4 GHz, 2x 5 GHz), the RT-AC68 "only" has 2 radios.
The RT-AC3200 is supported by Merlin, check his website:
https://asuswrt.lostrealm.ca/about

Indeed I did. Thanks for the reminder, my point really was just confirming that to all intents and purposes, if the second 5 Ghz isn't being used then the routers should perform similarly, other than differences in clock rates - see another post I made on the AC-68u variants with varying chips/clocks

 

[Nigel Jones]

what are the typical versions of the AC-68u coming out of the UK (amazon) currently? do they typically have the faster CPU?
may take a punt (or on amazon warehouse, though more risky, hoping the returns are "recent")

 

[Stepalex]

50Mbps

Thanks, but have you experienced it your self? I am getting 20Mbps only, with 1 core at over 92% usage, and looking at this forum, this seems to be the norm.

 

[cybrnook]

Thanks, but have you experienced it your self? I am getting 20Mbps only, with 1 core at over 92% usage, and looking at this forum, this seems to be the norm.

https://www.privateinternetaccess.c...-50-mb-throughput-on-pia-with-an-asus-rt-ac68

 

[ChackieJan]

Hey guys, is there a variant that is "better" than the others? I just purchased the RT-AC1900 no P with a C1 revision at Walmart. It was a spur of the moment thing as it was on clearance for $69. Just wondering if it was a good buy.

 

[doczenith1]

Thanks, but have you experienced it your self? I am getting 20Mbps only, with 1 core at over 92% usage, and looking at this forum, this seems to be the norm.

I have first hand experience. I did some testing a while back (January 2017). These are my speeds using the OpenVPN client on two different ASUS routers. Both routers running Asuswrt-Merlin 380.64 firmware. Connecting to PIA VPN servers on port 1198.

AC3100 (1.4 Ghz dual core)
CTF (Cut Through Forwarding NAT Acceleration)
DL: 61 Mbps with core 1 at 25%, core 2 at 75%
DL :74 Mbps with core 1 at 30%, core 2 at 85% with mods*
UL: 84 Mbps with core 1 at 35%, core 2 at 100%

AC68U (1.0 Ghz dual core)
CTF enabled
DL: 44 Mbps with core 1 at 30%, core 2 at 80%
UL: 58 Mbps with core 1 at 40%, core 2 at 100%

The speed tests were conducted over a wired connection from the computer to the router.

Data encryption: AES-128-CBC
Data authentication: SHA1
Handshake: RSA-2048

*Adding the following lines to the custom configuration bumped the DL speeds to 74 Mbps.
sndbuf 524288
rcvbuf 524288
push "sndbuf 524288"
push "rcvbuf 524288"

 

[Nigel Jones]

DO we know if the e1 revision has the updated wifi chip that supports full Mac? I think it's confirmed in the c1


Sent from my iPhone using Tapatalk

 

[lalajee]

One simple question
What will I gain or what will I loose if I buy ASUS RT AC-1900 C1 rev ?

 

[wouterv]

One simple question
What will I gain or what will I loose if I buy ASUS RT AC-1900 C1 rev ?

To my honest opinion there are no major performance difference between the various RT-AC68 and RT-AC1900 models.
The final wireless performance is most affected by your local individual conditions and situation (a super fast router will not help to enhance a disturbed wireless signal).

 

[doczenith1]

I agree with wouterv. The main reason that I would choose one model over the other is if I was using openvpn and could take advantage of the model with the 1.4 Ghz cpu.

 

[hotsauce2007]

My wired speed just dropped from 400 to 150 with this new FW updated, crazy

Just got back to Firmware Version: 3.0.0.4.380_7378
ASUS AC68U

 

[rods55555]

Hi.

Does anyone know if the RT-AC1900 C1 has usb shielding or not ?

 

[rods55555]

Hi.

Does anyone know if the RT-AC1900 C1 has usb shielding or not ?

Here is the answer I got from Asus support.

"RT-AC1900P is the improved version of RT-AC1900 and the only things that were improved CPU speed. That means all the special features and specifications of RT-AC1900P is the same with the version model you are talking about which is RT-AC1900."

 

[wouterv]

Here is the answer I got from Asus support.

"RT-AC1900P is the improved version of RT-AC1900 and the only things that were improved CPU speed. That means all the special features and specifications of RT-AC1900P is the same with the version model you are talking about which is RT-AC1900."

USB shielding was introduced with the A2 hardware version of the RT-AC68U, for quite sure this was carried on in the later hardware models including the RT-AC1900 variants.

 

[Insight]

How do I find the version if the sticker is missing on the back? I've ran cat /proc/cpuinfo which returns:

Processor : ARMv7 Processor rev 0 (v7l)
processor : 0
BogoMIPS : 1599.07

processor : 1
BogoMIPS : 1595.80

Features : swp half thumb fastmult edsp
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x3
CPU part : 0xc09
CPU revision : 0

Hardware : Northstar Prototype
Revision : 0000
Serial : 0000000000000000

My unit is a refurb with shielding but other than that I'm not sure what to check-

 

[wouterv]

How do I find the version if the sticker is missing on the back? I've ran cat /proc/cpuinfo which returns:

Processor : ARMv7 Processor rev 0 (v7l)
processor : 0
BogoMIPS : 1599.07

processor : 1
BogoMIPS : 1595.80

Features : swp half thumb fastmult edsp
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x3
CPU part : 0xc09
CPU revision : 0

Hardware : Northstar Prototype
Revision : 0000
Serial : 0000000000000000

My unit is a refurb with shielding but other than that I'm not sure what to check-

My RT-AC68U hardware version A2 gives exactly the same.

 

[Insight]

My RT-AC68U hardware version A2 gives exactly the same.

Hm, seems like it would be baked in somewhere, even on the board but thanks for the reply.

 

[hotsauce2007]

Hi

Where is the IFTTT code on Asus router to link with the app?