Super Slow Browser After ICS

[johnny cizzle]

motorcycle!!!!!

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[Fast Jimmy]

gman;
Currently I have the router set to:
Wireless mode - 802.11b+g+n
Authentication - WPA-PSK + WPA2-PSK
Encryption Technique - TKIP + AES
Bandwidth - 20MHz

Please tell me more on the necessary tweaks.
Thanks
FJ

[johnny cizzle]

mine seems slow on wpa too, honeycomb

[gman]

gman;
Currently I have the router set to:
Wireless mode - 802.11b+g+n
Authentication - WPA-PSK + WPA2-PSK
Encryption Technique - TKIP + AES
Bandwidth - 20MHz

Please tell me more on the necessary tweaks.
Thanks
FJ

If you are running 802.11n and encryption the standard says you have to be running WPA2/AES. If you run anything other than that under the "official" n standard the wifi units are required to fall back to slower speeds. Usually that means falling back to b or g. Radio won't say its now running b or g, but it will be. Some AP allow dual enabling WPA and WPA2/AES at same time, which is also against the official N standard. So running anything other that WPA2/AES or open on 802.11n final will kill your throughput.

If all possible configure AP to be "g+n" or "n" only when running 802.11n on 2.4ghz as just one device even in range of your AP (at your neighbors house for example) is enough to kill your N throughput as your AP will respond in B mode. If you need B at your house, and have to have it then you either need to get a second Access point or configure your access point as "b+g" and not run "N" at all at 2.4ghz.

On 2.4ghz you should always be in 20mhz mode and not 20/40 or 40 mhz mode. As 40mhz mode in 2.4ghz actually tries to use 3/4 of the entire spectrum for 2.4ghz wifi. And unless you can't hear ANY other accesspoints at all around your house, enabling 40mhz in 2.4ghz will interfere with your neighbors wifi and kill your throughput. Some radios refer to this as channel bonding or speed limiting. On netgear AP's to disable channel bonding you need to set max speed on 2.4ghz as "145mps or less" on other brands you might find a box that says to enable/disable channel bonding. For those you need it set to disabled.

On 5ghz you can run 40mhz mode and run "A+N" mode without much problems. As there usually is enough spectrum in 5ghz to allow it. For N to work though you still are bound by 802.11n requirement for WPA2/AES or open though to get any kind of throughput.

If your accesspoint has QoS settings in it makes sure that you have WMM enabled. The radio in the Xoom will use WMM to prioritize traffic for streaming video and large downloads and will help manage bandwidth if you have multiple wifi devices in the household.

To summarize recommended settings:
2.4ghz
WPA2/AES
G+N or N only mode
20mhz channels
WMM Enabled

5ghz
WPA2/AES
A+N or N only Mode
40mhz channels
WMM Enabled

[Fast Jimmy]

gman;
Thanks ever so much for the very detailed router information. It is greatly appreciated.

Unfortunately my only g+n option is b+g+n. I tried it yesterday on just n with WPA2 / AES.
While I didn’t notice any difference on the Xoom both my wife’s iPad2 and her HP notebook became scorchers! The improvement was dramatic.
However, my Kindle is only g as is my old HP notebook so they wouldn’t connect and I had to put it back to b+g+n. I did leave it at WPA2 / AES though.

Perhaps it is time for a new router.

I do classic and vintage motorcycle restorations and besides an old microfiche reader I have an old desktop in the shop that I use for reading manuals, viewing the dis-assembly photos I take upon reassembly, logging the progress, etc. I just put a Linksys WMP110 PCI card in it. However it just won’t quite get a signal in the shop which is a full metal (structure and siding) building about 140 feet away. Both the Xoom and my HP notebook will get a good signal at the open overhead door but they both get ‘iffy’ and loose it back in the shop.



I guess I need to get a range extender or just a new router.

Perhaps a new router would allow me to tweak it to suit the newer n devices while still functioning with the older g devices and have enough range get to the shop desktop.

I have tried a number of things on the Xoom and am starting to think that perhaps it does have a hardware issue.
Yesterday I took it to town and we had a burger at BK to check the Xoom on their free WiFi. At first it was opening pages very quickly. Then it abruptly came to a standstill and wouldn’t open anything.

At home it did the same thing. I would think that it was okay and then it would fall back to a crawl.
Again, thanks so much for the tips.
FJ

[Hagar]

I've also noticed slower wifi performance since upgrading...but only in specific situations. At work, we have a hotspot configured with a throttle of 1 MBps. I used to connect and get about 1 mb. Since the upgrade, I can no longer get more than 700K. The difference is that I no longer get to use Netflix there - it's too slow to work! I'm using SPEEDTEST.NET to check my speeds.

I also have an iPad 2 for work and connecting to the same hotspot, I consistently get .95 Mbps on it and Netflix works great.

Nothing has changed on the hotspot...but I'm only getting half to 3/4 of what I got before. I have connected to 5 different devices on the same network - same problem.

At home I have 5 and 2.4 GHz dual band router and the speed
seems fine - I get about 7 Mbps. Something is definitely different on ICS but it's subtle!

P.S. Dont bother with the range extender - they don't work. The signal strength appears to be stronger but the throughput is the same or slower.

P.P.S. It's ironic that you can't properly edit your posts on this site on a Xoom! The cursor is all over the place!

[steved]

Same issues for me......after ICS my xoom will no longer load www.juniper.net, www.cisco.com, and a couple i cant mention here ......SUPER Frustrating

[john06]

I received the ICS update a few days ago (I think Wednesday).
It is a completely stock WiFi Xoom with a 16GB SD card.
The Browser is so slow now that it is almost worthless.
Nothing has changed on my wireless network and all the other devices are functioning fine.
Some sites that used to load in a few seconds will not load at all now. The blue bar will go VERY slowly to about 80% then nothing.
These are not especially high graphic content sites and are site I visited without issue prior to the upgrade.
I have updated to the latest Flash and did a 'soft boot' but it has made no difference.
I tried to look through all the ICS threads so as not to post unnecessarily but didn't see anything.
I thought of contacting the Motorola Chat but thought I would check with folks who really knew the Xoom first.
Thanks
FJ

[ggrant3876]

I received the ICS update a few days ago (I think Wednesday).
It is a completely stock WiFi Xoom with a 16GB SD card.
The Browser is so slow now that it is almost worthless.
Nothing has changed on my wireless network and all the other devices are functioning fine.
Some sites that used to load in a few seconds will not load at all now. The blue bar will go VERY slowly to about 80% then nothing.
These are not especially high graphic content sites and are site I visited without issue prior to the upgrade.
I have updated to the latest Flash and did a 'soft boot' but it has made no difference.
I tried to look through all the ICS threads so as not to post unnecessarily but didn't see anything.
I thought of contacting the Motorola Chat but thought I would check with folks who really knew the Xoom first.
Thanks
FJ

Welcome to the forum. Glad you decided to join us. Try a soft reboot first, press and hold the power button and the volume up button together until the Xoom starts to reboot, then release them both. This fixes some of the problems after an update.

[rive]

same here. browser is super sluggish after ics update