770 wifi problems [Archive] - maemo.org

mc002

09-20-2008, 07:21 PM

Hello,

I´ve read the whole forum to get some information about the 770er Wifi problem, but there is no satisfiable proposal to solve that problem.

I´ve the typical problem. My 770 functions fine with OS2005! With OS2006, 2007 I don´t see any WiFi-Ap´s. Is there a solution for this problem? :confused:

Thx for your help...

Christian from Germany

r4yd3n

09-23-2008, 11:42 AM

Never heard of such a problem before. Are you sure your AP is not hidden? does your n770 displays other AP's?

Tweak

09-25-2008, 08:24 PM

I dusted off and fired up my 770 few days ago and ran into the similar problem. If I scan for networks repeatedly it will sometime detect the ssid, but always fails to connect and get a IP lease.

I only tried this under 2006, 2007 and 2008; and the last time it worked I was using a different wireless router. Search for "wifi" and "blind" on the forum for few others having the same problem. I'll have to try rolling all the way back to 2005 to see if that may work, but I suspect the radio in the unit is bad. :(

All I wanted to run it was as a remote for my Myth TV box I am setting up too....

Vinh

09-25-2008, 09:16 PM

Sounds like you might have the same problem as myself and a few others. Is your problem like this:

https://bugs.maemo.org/show_bug.cgi?id=2082

bunanson

09-28-2008, 05:06 PM

Unplug and re-plug the power to your router will solve the problem.

bun

luxelux

09-28-2008, 06:32 PM

I've experienced behavior matching the description in Vinh's bug link: Connectivity usually works fine, but on one or two occasions that I was somewhere that there were many wireless access points, first I got a long list, then got nothing, or if there was something on the list I couldn't connect to it. Maybe I'll be able to run syslog (per the bug link) at some point. On my 770 I've been running OS 3.2006.49-2 forever.

Tweak

09-29-2008, 09:19 PM

Well rolled my 770 all the way back to 2005 and it now works!
I'm only using WEP on my personal router as I'm in a neighborhood that has no range for someone off the street to access my AP. However the neighbors in the last year or 2 now have AP running which is probably interfering with my 770 now. :(

ericdkirk

09-29-2008, 11:21 PM

I have noticed the same thing lately, I noticed that if I set my router to b/g instead of b/g/n it seems to work just fine. I assumed that it was my router messing with my 770. But then again it is no messing with my N800.
I tried downgrading and none of the older version will work when my router has N on so I just have to turn down my wifi router.

littlestone

10-12-2008, 11:45 AM

I have similar problem appearing ever since one of my neighbours brought a new wifi router. When that router is off everything returns to normal. It's annoying since I can't find ways to shield my tablet. I don't think it's due to too many APs since there are only 5 in my surrounding, and I had been in places with more than 30 APs that 770 works flawlessly

Does anyone know how to identify the brand and model of that router? That may help nailing down the problem.

Serge

10-12-2008, 02:46 PM

Just in case, do you have the following fix installed: http://www.internettablettalk.com/forums/showthread.php?t=11824 ?

I'm not sure if it is directly related to your problem, but that memory corruption bug is quite nasty and can cause all the kind of WLAN instability issues. Please report back if it helps.

littlestone

10-13-2008, 12:34 AM

littlestone

10-21-2008, 05:29 PM

Is this related?
https://bugs.maemo.org/show_bug.cgi?id=1459

I just wonder whether we can transplant the "fixed" osso-wlan-security to OS2007HE or OS2008HE.

penthes

11-04-2008, 09:37 AM

Also see http://www.internettablettalk.com/forums/showthread.php?t=21797 for same problem (and potential workaround)

scaler

03-27-2009, 04:06 PM

Since the date of Vinh's post #4 of this thread, more comments have been posted on the Bugzilla thread that he cited. Here is the URL of the thread again:
https://bugs.maemo.org/show_bug.cgi?id=2082 .

Comment #17 (in the Bugzilla thread) makes a super-low-tech suggestion. The writer of that comment (Burgess) seems to have the same problem as littlestone, i.e. the nearby presence of a single n-type router (see Burgess's later comment #21 of the Bugzilla thread). Burgess found that the body-shielding worked for him. Maybe it all depends on how close the n-type router is.

The body-shielding trick works for me too. I don't know whether I have the same problem as Burgess and littlestone, or whether in my case it's the large number of AP's around. I can connect easily from about 10 pm to 8 am: only about five or six AP's show up at that time. Daytime is when I have trouble. The search picks up page after page of AP's and then suddenly loses them all and "No Connections available" appears. Evidently a lot of people are turning their routers off at night. So far, I have had 100% success by using the body-shielding when those routers are on during the day

For the people who have had no success with the body-shielding: make sure that you have the 770 shielded while any searching and connecting are going on. That means you have to be quick. Tap on the WiFi icon and immediately hold the screen against you. After the time it takes to search (I don't have a figure in seconds), look at the screen and tap on your connection before another search starts, then immediately hold the screen against you while the Tablet connects. Once the connection is made, you should be OK, if your problem is the same as mine.

There are other possible sources of overwhelming 2.4 GHz signals. When my wife turns on the 2.4 GHz portable phone, the Tablet's WLAN connection is immediately lost. I can't get it back until she finishes the call. Do you have chatty neighbours? Maybe that's the problem.

trin20t

03-28-2009, 02:49 AM

Since the date of Vinh's post #4 of this thread, more comments have been posted on the Bugzilla thread that he cited. Here is the URL of the thread again:
https://bugs.maemo.org/show_bug.cgi?id=2082 .

Comment #17 (in the Bugzilla thread) makes a super-low-tech suggestion. The writer of that comment (Burgess) seems to have the same problem as littlestone, i.e. the nearby presence of a single n-type router (see Burgess's later comment #21 of the Bugzilla thread). Burgess found that the body-shielding worked for him. Maybe it all depends on how close the n-type router is.

The body-shielding trick works for me too. I don't know whether I have the same problem as Burgess and littlestone, or whether in my case it's the large number of AP's around. I can connect easily from about 10 pm to 8 am. Daytime is when I have trouble and need to do the body-shielding. Something is being turned on in the day and off at night, and interfering with my connection when it is on.

There are other possible sources of overwhelming 2.4 GHz signals. When my wife turns on the 2.4 GHz portable phone, the Tablet's WLAN connection is immediately lost. I can't get it back until she finishes the call. Do you have chatty neighbours? Maybe that's the problem.

Well as I said in my other post you all should set your routers to only b/g. Also n networks throw out a longer signal and thus can interfere. Interesting about your wife's phone also. But I think someone has an n close. 2005 OS ironically uses all networks but 2006 only ses g/b! :rolleyes:

racky

03-28-2009, 04:51 AM

Well as I said in my other post you all should set your routers to only b/g. Also n networks throw out a longer signal and thus can interfere. Interesting about your wife's phone also. But I think someone has an n close. 2005 OS ironically uses all networks but 2006 only ses g/b! :rolleyes:

I think you miss the point here. The N signal is from the neighbour, not from ourselves. Unless you have the power to tell all your neighbours to turn their routers to only b/g, otherwise your suggestion is not going to work. :confused: