Data reception stops working after an hour on one computer

[scotta0471]

I have one laptop where the 4G connection is constant and works great for approximately 48 minutes.  At about that time, I am unable to load web sites until I disconnect and reconnect to the 4G network.  The laptop has Windows 7.  Any ideas?  Thanks.

[dmc271]

This also happened to me twice tonight.  VZAM shows me as still connected, but I can't access anything on the web.

I tried disconnecting, but VZAM is so buggy that it won't disconnect.  Eventually (after 3 or so mins), it times out and says unable to disconnect device (or something to that effect).  Only solution is a reboot of the computer.  This is on an XP machine.

Verizon, what's going on?

[flrver]

I have the same problem. I am on my third device a UML290. If I disconnect and reconnect then it fine for a while. I am in the Orlando area and I have tested this at different locations.

 I am a retired IT professional, Microsoft certified, A+ Certified Computer Technician and Network+ Certified Network Technician. I am also a Ham radio operator so I have some knowledge of how radio waves travel.

 Right now my RSSI is -57db and my SINR is 15. This is GREAT signal. I have 4 computers and I have the same problem with all of them. I an running XP on one PC and have three Win 7 PC. I just updated the VZAccess software and also update the formware on the USB device.

When I am in the failed mode it is strange because if I bring up a command terminal I can ping yahoo.com and run a tracert to yahoo.com with no problem but I can not get yahoo.com to open in a browser. I think that if I waited long enough, say 10 minutes it may open. I am testing with Firefox, Internet explorer and Chrome and all have the same problem. I trade stocks a lot and have streaming feeds set up and the connect to the service says that it is still connected but so slow that it is not usable. As I said before if I disconnect and reconnect than everything is fine.
Support has had me lock the device into LTE mode from automatic and this does not seem to help. I have a CradlePoint 3g/4g router that support the UML289 and I have the same problem with the connection also.

If you want to stay connected to the internet do not get a 4 G device. This has cost me quite a lot of money  and time due to not being able to stay connect .

[scotta0471]

I wouldn't say I'm ready to throw in the towel...I think this is fixable at some point, but I'm glad I'm not crazy and there are others with the same issue.

Additional information: I am in the Dallas area.  I have another mini laptop that does not have this problem...so there's got to be something different between the 2 computers.  Also, it is a strange symptom...it's almost like it slows down to a non-working state over time.  I have also traded out SIM cards with a local VZ store with no change.

Hopefully, if we get enough people with the problem, we'll get VZ's attention and get the issue corrected.

[flrver]

Well I may be giving up. Last night  the modem started blinking RED light, no service and is dead. What makes me even madder is that when I called support they took my information, had me restart my computer suggest a few more things that I had already done , said that the red light means no service and gave me a ticket number. in 1 to 2 days they will decide how to resolve the problem. So its time for me to go to a WIFI spot for the next two days to get on the internet.

 Are the LG l600 users having the same slow connections after staying connected for hours? I wanted the UML290 because it has external antenna connections and is a global device but now I just need something that works. Is that too much to ask?

[scotta0471]

Additional information: My work computer with XP is working pretty well, though the speed is a little slower.  I've been connected for almost 8 hours though without a hiccup.  On my Windows 7 computer I've disabled the USB power settings but nothing's changed.  Any ideas?

[dmc271]

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scotta0471 wrote:

Additional information: My work computer with XP is working pretty well, though the speed is a little slower.  I've been connected for almost 8 hours though without a hiccup.  On my Windows 7 computer I've disabled the USB power settings but nothing's changed.  Any ideas?

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scotta0471,  In my experience, the disconnections are very random. I had a 49-hour run of perfect service, and then two disconnections the next day at random intervals.  This is on an XP machine.  

I don't think Verizon knows how to fix it either.

[scotta0471]

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dmc271 wrote:

scotta0471,  In my experience, the disconnections are very random. I had a 49-hour run of perfect service, and then two disconnections the next day at random intervals.  This is on an XP machine.  

I don't think Verizon knows how to fix it either.

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Normally I'd agree...however in my case on the Windows 7 machine, I can tell how long I've been online by when it stops working...49 mins 9 out of 10 times...every once in a while it happens sooner.  I have 2 other machines, one with XP and one with Windows 7 (mini) that do not have the same problem.  It's not the USB power setting, so it has to be something else.

[dmc271]

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scotta0471 wrote:

Normally I'd agree...however in my case on the Windows 7 machine, I can tell how long I've been online by when it stops working...49 mins 9 out of 10 times...every once in a while it happens sooner.  I have 2 other machines, one with XP and one with Windows 7 (mini) that do not have the same problem.  It's not the USB power setting, so it has to be something else.

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I believe you.  Very weird indeed.  Perhaps the event log in Windows 7 can shed some light.  What we really need is a log in VZAM.  

Since your disconnections are so reproducible, Verizon software developers need to be in communication with you.   I'm sure you could help them pinpoint the problem.

(BTW, it's not a permanent solution, but you could install the freeware app Connectify on the Windows 7 mini to turn it into a wireless router.)

Cheers,

[tradelegs_q]

Having very similar disconnection problems here.  Awaiting a reply to this thread with you.

[scotta0471]

Ok, so this has gotten silly...now it's disconnecting consistently every 31 mins...does VZ support monitor this forum?  Come on super tech guys...what's the Windows setting to stop this madness?

[Neander]

I found the problem.  Verizon hired this engineer to adjust their signal strength:

http://www.hulu.com/watch/4163/saturday-night-live-ernestine

Those of you that are faster than my current 3G (or have the time) will enjoy it.

This discussion sounds a lot like an earlier one:

http://community.vzw.com/t5/4G-Discussion/Saturday-1-15-11/td-p/378264

that doesn't seem to have gotten fixed as well as it should.  I learned that if all 3 of my computers, on 3 different OS's aren't working, it's probably Verizon's fault.  

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Flrver;    3 UML290's ?    It looks like you may be having a problem we settled here:

http://community.vzw.com/t5/4G-Discussion/I-am-getting-an-error-Message-when-trying-to-connect-to-4g...

...about the third page in.  It's a solution Verizon doesn't seem to have embrased yet,  but it kept me from returning my UML290 to the store.   It's a simple check:   at the VZA :   cntrl - t ,    & enter     at+cgdcont?      alt F4 to exit

[flrver]

I got a new modem via Fedex yesterday and I am back to my original problem. I have started trying to get as much information about the problem as I can, this is going to take some time. 

 I still have the problem of intermittent HTTP connection after any where from 1 hour to 4 hours.  I ran a few simple test while in the failed state. I stay connected but I can not open a WEB page. If I disconnect and reconnect the problem goes away and I can browse the web again until the next time. 

In the failed state it seems that only HTTP may be affected. I am able to ping Yahoo.com and I ran a TRACERT to yahoo.com with no problem in the failed state. To make sure that it was not a DNS problem I also tried to open the IP number for yahoo.com (67.195.160.76) in a web browser. The page would not open, or would take 5 minutes to open. At the same time my trading platform was streaming data with no problem.

I have tested with 3 PC's running Win7 and one PC running XP and I have the same problem. I also have a 3g/4g router that supports the UML290 and I have the same problem.

I hope that someone at VZ can realize that they have a problem that a lot of people may not realize because the normal user does not stay connected 16 hours a day.

Next week I plan on  following up with a VZ rep that seems willing to work with me. Tonight I plan on downloading the new VZA for MAC and test with my MAC.

[scotta0471]

Yeah, I'm sorry, I didn't understand the whole Ctrl+T hacker thing...I didn't really see how it changed anything.  Anyway, now that computer is down to about 13 mins...my mini laptop with Windows 7 and my work laptop with XP are working great. 

So...what Windows 7 setting gets a USB modem to stop receiving data in a progressively shorter period of time?

[flrver]

I think that it is working now.

Last night I install the new VZAM on my MAC and stayed connected all night so I started digging in a little deaper. I ran acoss a post dealing with proxy settings. I had thought about the problem being caused buy a proxy and I was going to look for a public proxies to use but got side tracked. lasy week. This was due to the fact that it looked like only HTTP was affected bacause I could ping yahoo.com but not open the wbe page in a browser. Proxy has settings for diffrent protocals, HTTP, FTP and POP.

Last night I checked all 4 of my computers and all had the setting turned of for automatic detect settings. I had always turned this off in the past as I would sometimes see a message about verify proxy settings and since I do not use one I turned it off. Since I enabled the auto setting I have not lost my HTTP connection.

To verify or change this go to Control Panel, Internet Connections, select the Connections Tab, Then select the LAN button and make sure that the Automatic detect settings.

When I worked for Corporate America I had to change the proxy settings all of the time depending if I was connected in the field or behind the corporate firewall.

Time will tell but I hope that this is the fix.

[scotta0471]

Well, the good news is that after rebooting, I'm back to 48 mins.  The bad news is that it only makes it to 48 mins and then I have to disconnect/connect before I can receive data.  I tried the auto setting mentioned earlier, but it did not make a difference.  I have also tried using the connection made through Windows 7...the connection was again ineffective after approximately 48 mins.

[scotta0471]

So nothing new?  Anybody?

[flrver]

Update, I have changed the settings in VZAM to auto connect. I was told my VZ support that this was an NDIS connection (USB networking). In fact I do not even use VZAM most of the time. Most of the time my connection stays up just fine, some days all day long but every once in awhile I can not get some pages to open until I disconnect and reconnect. 

I have an XP computer using Internet connection sharing feeding a router connected to my other computers. When I have the problem since I am not using VZAM I just disable the UML290 network connection and enable it again and it connects automatically and I am back connected. 

I wish that I could document why I am loosing the connection but lt's very intermittent. No loss of modem connection, not a DNS problem very good signal level and I am at a fixed location not moving. I connect around 8am every day and trade stocks all day long so an interruption in my connection can coast me a lot of money. I am in a 4g area now but in a few weeks I will spend a week in a 3g area and I will see if I still have the problem. I have locked the UML290 into 3g mode and I still have had the intermittent problem here in the 4g area. I can say that since the updated firmware , dialer and changing the settings to auto connect it is a lot better but it is still not working as well as the old 3g service. 

[scotta0471]

Update: VZ sent me a new Pantech card and I transferred over the SIM card.  I am noticing a better connection at work on the mini laptop, though it still does disconnect sporadically, but seems to reconnect right away.  Unfortunately, nothing has changed with the home Windows 7 machine: 48 min on the dot, I have to disconnect/reconnect.  This has to be some sort of Windows setting.  Any Microsoft geniuses on here?

[flrver]

Possible work around, time will tell. 

 I have a possible work around that seems to help the loss of data thru-put after being connected for sometime. I connect around 8 Am and stay connected until 10m every day. After being connected for a few hours my data connection slows and then stops. I have not figured out why, possible MTU problem since some sites will open and others will not but this work around seems to work for me.

 I have configure the modem to auto connect and I have closed VZAM. VZAM is not running and when I start the PC each morning it connects automatically.

 I found that when I have the problem if I go to network connections and bounce it, disable it and enable it the connection is fine for quite a while again.

Using a Microsoft command tool I wrote a batch file that can reset my UML290 , disable it and then enable it. I then set up the batch file to run every 2.5 hours using Task Scheduler.

  If anyone is interested in this check out http://en.kioskea.net/faq/1886-enable-disable-a-device-from-the-command-line on how to use the devcon command and getting it from Microsoft. You have to run the command and list your devices and then look at the UML290 device for a unique string that you can use to identify the device and then write a batch file with the commands below

devcon disable *USB\{9C26AF91-DF51-4744*

devcon enable *USB\{9C26AF91-DF51-4744*

 This is my string, the full list of the device string was not needed with the wild-card use (*).

It looks like this has helped me stay connected, the disconnect is about 45 seconds so most programs do not time out on connections and even my stock streaming app seems to reconnect just fine.

[SimonD]

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