What's new

WRT1900AC slow wifi browsing

  • SNBForums Code of Conduct

    SNBForums is a community for everyone, no matter what their level of experience.

    Please be tolerant and patient of others, especially newcomers. We are all here to share and learn!

    The rules are simple: Be patient, be nice, be helpful or be gone!

Carnagerover

Senior Member
Hi all,

I bought this router on a whim over the weekend as I read good things about its stability compared to Netgear, Asu and D-Link routers I have used recently, however I am having an issue with slow wifi browsing.

The router has a current uptime of 3 days, since I bought it and has the latest firmware installed, my wifi is setup as follows;

2.4Ghz - WPA 2 - B G N only - Channel 1 - 20mhz only
5Ghz - WPA 2 - A N only - Channel 36 - auto width

Not using media prioritisation

After checking on my wired PC my wifi is slow and sluggish, running a speedtest on the iPad app my wifi speed is performing fine but Internet pages on my iPad Air 2 are super sluggish compared to my ISP supplied router. This is on both wifi bands

Not sure what the issue is?
 
This may not be an issue with wifi, it could be related to web based QoS issue or some configuration/software issue.

I have the media prioritisation switched off, can't think what else it could be. I have included a screenshot that shows some firewall stuff but you would think that it would effect the wired if it was a problem.

Other uses have noticed the slowdown, also the Wii-U keeps dropping out when watching YouTube videos although the console stays connected. The router has the exact settings of the D-Link it replaced
 

Attachments

  • image.jpg
    image.jpg
    37.8 KB · Views: 917
What im saying is that its a problem with the firmware. Try to tick the other firewall options and see if it helps. Try update the firmware or rollback to the last known stable firmware.
 
Have you tried running a speed test from within the router GUI? I would suggest resetting to defaults and setting it up from scratch if you can't find any other cause. Your firewall settings look fine.
 
Have you tried running a speed test from within the router GUI? I would suggest resetting to defaults and setting it up from scratch if you can't find any other cause. Your firewall settings look fine.

I'm not a fan of these new router GUIs, you can't find anything and they neglect simple things like internet uptime, router uptime. Create a Joe Bloggs guy and another for "advanced users"

The router Internet led keeps going solid orange, which according to the manual is due to configuration settings, however my internet is working and my config is my default config.

My speedtest is fine, slower in the gui than on speedtest.net, get around 60Mbps on the gui, 74Mbps on speedtest.net.

Will try a factory reset
 
All of the info you want (and a lot of info you might NOT want) can be found via a CGI script.

Just type into your browser your routers IP address followed by /sysinfo.cgi.

And yes, the GUI is somewhat Spartan but I kind of like it that way. It's more streamlined and elegant than Netgear Genie but not as complicated as DD-WRT or even AsusWRT.
 
All of the info you want (and a lot of info you might NOT want) can be found via a CGI script.

Just type into your browser your routers IP address followed by /sysinfo.cgi.

And yes, the GUI is somewhat Spartan but I kind of like it that way. It's more streamlined and elegant than Netgear Genie but not as complicated as DD-WRT or even AsusWRT.

Thanks for the information,

I had managed to find out the sysinfo.cgi earlier but thanks again, I had 3 days uptime on the router before I have factory reset it. At the moment the internet led is remaining solid white and not going to orange at all. Going to test now for the wifi slowness
 
Ok so I have fixed it,

To stop the lag I have to have both 2.4Ghz and 5Ghz radios set to mixed mode, once this is done the lag is gone?

Not sure why?
 
Last edited:
Ok so I have fixed it,

To stop the lag I have to have both 2.4Ghzband 5Ghz radios set to mixed mode, once this is done the lag is gone?

Not sure why?

Strange , maybe one of your close neighbors wifi channel is interfering with your 2.4 channel . Scan the network with inssider to find out
 
Last edited:
for anyone that has this router am I right in thinking you need to use mixed mode at 5Ghz to enable AC, as both the other options are just for A and N?

I'm guessing auto for width as there is no 80mhz option.

Also what is the difference between 802.11b/g/n only and mixed mode on the 2.4ghz band, any issues if I use mixed mode?
 
Ok so I have fixed it,

To stop the lag I have to have both 2.4Ghz and 5Ghz radios set to mixed mode, once this is done the lag is gone?

Not sure why?

What were you running prior? I've run the 2.4Ghz band in every mode with 20Mhz channels and haven't had any issues. I run in Mixed mode now but that's just because I don't have any reason to run B/G anymore (got rid of the older Nintendo Wii's).

for anyone that has this router am I right in thinking you need to use mixed mode at 5Ghz to enable AC, as both the other options are just for A and N?

I'm guessing auto for width as there is no 80mhz option.

Also what is the difference between 802.11b/g/n only and mixed mode on the 2.4ghz band, any issues if I use mixed mode?

Yes, to get 80Mhz AC, you have to enable Auto channel width.
 
What were you running prior? I've run the 2.4Ghz band in every mode with 20Mhz channels and haven't had any issues. I run in Mixed mode now but that's just because I don't have any reason to run B/G anymore (got rid of the older Nintendo Wii's).



Yes, to get 80Mhz AC, you have to enable Auto channel width.

This is the config with the lag;

2.4Ghz - WPA 2 - B G N only - Channel 1 - 20mhz only
5Ghz - WPA 2 - A N only - Channel 36 - auto width
 
Interesting. I've run the 2.4Ghz with that config and not had any issues. I have not run the 5Ghz that way, though.
 
Interesting. I've run the 2.4Ghz with that config and not had any issues. I have not run the 5Ghz that way, though.

What do you think the issue could be? Not that it really matters now it is fixed, I just thought as a rule it was better to choose specific bands on the wifi rather than mixed.
 
In my experience with the WRT1900ac...

2.4GHz - B/G/N mode/narrow channels (20MHz) - should be fine
5 GHz - mixed (A/N/AC), Auto for width

This is normally pretty good - keeping the GUI up can impact overall performance, so run that only when you need to.
 
In my experience with the WRT1900ac...

2.4GHz - B/G/N mode/narrow channels (20MHz) - should be fine
5 GHz - mixed (A/N/AC), Auto for width

This is normally pretty good - keeping the GUI up can impact overall performance, so run that only when you need to.

I switched the 2.4Ghz back to B/G/N 20MHz from mixed 20MHz and the wifi browsing was instantly slow again. What's weird is that this setting affects the iPad Air 2 which is on the 5GHz? Not sure why
 
This is normally pretty good - keeping the GUI up can impact overall performance, so run that only when you need to.

I haven't run into any issues with the GUI causing crashes or slowdowns since the July firmware release.
 
I switched the 2.4Ghz back to B/G/N 20MHz from mixed 20MHz and the wifi browsing was instantly slow again. What's weird is that this setting affects the iPad Air 2 which is on the 5GHz? Not sure why

Well, practically speaking - put it back to mixed then... if it works, that pretty cool...
 

Latest threads

Sign Up For SNBForums Daily Digest

Get an update of what's new every day delivered to your mailbox. Sign up here!
Top