K920 - Z2 Pro - Network Fluctuation & Network Drop.

Hi,
I have received Lenovo Z2 Pro on 17th November 2014. Since the date of receiving phone has too much of network fluctuations. It fluctuate from 0 to full every 2-3 seconds. it goes to "no service" frequently. All this happens even when phone is kept steady at one location.
Situation gets worse where there is low network availability. Where there is low network availability, phone goes out of service (doesn't pick up network) very frequently.
I have 3 other phones which doesn't have any issue picking up network with same sim card at the exact same place. They also don't show any network fluctuations or network drops.
FYI, I have updated my Z2 Pro to latest firmware via OTA update on WiFi and I also have done factory reset 3 times.
Does anyone have a solution for this issue or is it a manufacturing defect.?
Or is it a software issue.?
Thanks.

In addition to that, when you put your phone's network on WCDMA \ GSM (Auto) mode, it almost always chooses GSM (2G) network even when WCDMA (3G) network is available.
My Samsung Note II & other mobiles almost always pick up WCDMA (3G) network when put on Auto mode.
It does seems software issue.

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HP OfficeJet Pro 8500A looses network connectivity

Hello community,
Got a strange thing setting up my brand new OJ 8500A: Connected the printer via LAN cable to an AVM 7270 router. Assigned a fixed IP on the router, using the printer’s MAC address (printer has automatic IP). Connecting the cable, the printer got it’s IP and I could install the printer driver on the connected PC’s without problem. Printing and scanning to disk worked fine and accessing the EWS was no problem.
But after a time (this is now between 30 sec and 2 min of idle time) the connection is lost. The port shows active on the router, but EWS can’t be reached and the printer does not reply pings. If I try to scan from the 8500A to the disk (server) I get a non-connectivity error message. Printing from a PC is not possible (says printer not available).
To get out of this I have to restart the printer or disconnect the LAN cable, re-connect, wait until the link is re-established and can do all (print, scan, EWS). After some time, (with the printer not being used) the connection is lost again.
I then changed to wireless. Here is the same issue – the connection restores if I disable the wireless link and re-establish.
There is no firewall except the AVM hardware firewall between the printer and the server. Scanning to disk after re-establishing the link always works and the printer replies ping requests from various sources. But it falls asleep soon thereafter. Both LAN port and WLAN have been confirmed to work for other devices (laptop computer).
Am kind of desperate and hope somebody out there can help. Searched the forum but not successful. Appreciate all help.
Thanks, Eric

Got some new info to share:
First, let me explain the details of my network: The network is based on a AVM 7270 (Fritz!Box Fon WLAN) with firmware 74.04.88. Several workstations are connected to this router: WinXP home, WinXP Pro and one Win7 are present. A Synology 107+ disk station running DSM3.0-1342 is connected and used as NAS. The HP8500A is connected (typically) via LAN (WLAN is possible and even more stable - just don't want to keep WLAN continuously on). The 107+ and the HP8500A have fixed IP’s defined on the AVM 7270 (via their MAC addresses). The computers use DHCP.
No connectivity problems are known in the entire network. It is running stable and reboots of router and NAS are done only on firmware upgrades or power failures. The 107+ holds the directory where the HP8500A scans network scans onto. The HP8500A was purchased in Germany the week prior Christmas. Installation of the software using the supplied CD was problem free. The HP8500A works fine (so printing or scanning from a PC, but also scanning from the printer to the NAS), as long as all is done right after start of the printer. After a while (this is 10 sec … 30 sec via LAN or 1 … 20 min via WLAN) the HP8500A is no longer reachable from any of the PC’s (no printing, no web service), but also fails to connect to the NAS for network scans. When I get the connection failure message and I ping the printer, it returns the first of the 4 pings. The remaining 3 fail. If I ping right again, all 4 pings fail. If I ping a few minutes later, the first ping is returned, the other ones fail. If I wait longer I realized that the connection is restored after some time (>15 min), but still not lasting.
When I connect my laptop (WinXP) directly to the HP8500A (all fixed IP’s), the connection remains stable. Printing to the printer or scanning from the printer to the laptop is enabled all time.
When I connect my laptop and the HP8500A to a Netgear DS108 hub (without the AVM 7270), the connection remains same stable as the direct connection between laptop and printer.
When I connect my laptop and the HP8500A to an Eumex 704PC LAN router (my previous (and still backup) router), the connection is stable.
When I connect a.m. configuration to the AVM 7270, the problem re-occurs. If I disconnect the AVM 7270, the connection remains active.
Right now I have the original configuration restored (HP8500A connected via LAN to the AVM 7270). The connection fails as described above. But periodically it seems to wake up (see also above). Print jobs that are spooled suddenly are executed. Unfortunately this is not predictable – can take 15 … 30 min. But I have got all pages printed after some while…
This is the reason why I think this particular issue is not driver related. Scans to network (Synology NAS) do not use the Windows platform – and are affected too. There seems to be an incompatibility between the HP8500A and the AVM 7270. This incompatibility seems not to exist between the HP8500A and the older models Eumex 704 or Netgear DS108 (simple hub, no router). HP service states they have 6 HP8500A printers stable running in their network (have no info about details). But obviously there must be a number of customers without problems. So, what makes the combination of HP8500A and AVM 7270 instable? And is the AVM 7270 the only router that shows this problem – this forum indicates several other configurations that also drop connection. Is there a protocol detail where the AVM 7270 cuts the connection as it may feel intrigued? Is it the AVM 7270 that stops talking to the HP8500A or is it the HP8500A that stops talking on the network? Why is always the first ping returned with normal response time?
Lots of questions. Maybe there is somebody out there that can arrange these puzzle pieces into a picture…
Best regards
Eric

Thanks this was very useful.. I have a brand new iphone 4s unlocked version from singapore and I am having the same problem constant network fluctuations, no service, call failed, invalid sim, sim failure, bars fluctuating from 5 - 3 - 2 - 1, no signal/ba

I have a brand new iphone 4s unlocked version from singapore and I am experiencing constant network fluctuations on my iphone , no service, call failed, invalid sim, sim failure, bars fluctuating from 5 - 3 - 2 - 1, no signal/bars searching etc... Ifeel miserable after trying out all the options changed multiple sims, tried multiple carriers, restored the phone back and have set-up as new device but the problem does not get solved... its is so frustrating that after investing on a world's most expensive phone you cannot enjoy the calling features which the phone offers which is the main thing you own the phone for.. Rest of the things are working.. The funniest part I am not able to make calls or receive calls but can access the internet.. I have tried every possible thing and really very frustrated with this iphone of mine...I hope the problem gets solved.. would anyone have any solutions to this problem.. Does it mean one should never update software as I hear that after updating to IOS.5.1 the problem has started coming and same has been with there.... Apple says its a hardware failure which is very difficult to digest as sometimes I get 5 bars and able to make and receive calls but 95% of the time I am unable to. If anyone has any solution I will be very happy if he or share can share the same. Many thanks. its so disgusting to experience this on top of this apple does not support global warranty for the phone as you need to go to the country from where you bought the phone for replacement.. Truly sad state of affairs.. very very very dissappointing.

Have a look at this it might help
http://support.apple.com/kb/TS4148

I am sharing my macbook pro over a network with windows 7, however through windows 7 I can access my whole computer instead of just the shared files!

I am sharing my macbook pro over a network with windows 7, however through windows 7 I can access my whole computer instead of just the shared files!

Hi Sig,
The issue is that i only want the shared folders to be accessed through windows 7.
Whats the point otherwise to have shared folders?
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Is there a way to keep my Mac Pro On the network without sleeping???

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In the Energy Saver pane of System Preferences, check the 'Wake for Ethernet network administrator access' checkbox under the Options tab, and then use an application such as this one to send it the signal.
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Photoshop will bring up this message:
This application has failed to start because SPROF32.dll was not found. Re-installing the application may fix this problem.
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After looking into it our department figured out that the problem the program had was that it was running on a network drive rather than a local drive. When we ran the program on the computer's local drive these errors didn't show up at all and the programs ran flawlessly. After looking at these errors and the overall problem, does anybody know what needs to be done to have these programs run on a Network Drive?

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New HP LaserJet Pro MFP M127fw network connection impacts DNS server of my ISP

Hi,
i am not well with english, so please sorry
I have deliverd new HP LaserJet Pro M127fw to my client who have 3 PC-s Win7 64bit, one 4 port switch, and one TP-link ISDN modem-router.
I have installed the printer over network and everything is done well. Printer is working in printing/scanning/fax/ and copy.
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Hi @ITMračunari ,
I see that you are having issues with the printer connected by a Ethernet cable to the network, the printer is impacting the DNS of ISP. I would like to help.
Turn the IPv6 off on the printer to see if that will help.
Go to Setup, Network Setup, Network Services, IPv6 and turn it off.
This is a Consumer product and has been proving to work with a direct connection to a router.
I noticed in your post that you are also using a switch, which could possible cause other conflicts.
Hope this helps.
Have a nice day!
Thank You.
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos Thumbs Up" on the right to say “Thanks” for helping!
Gemini02
I work on behalf of HP

I just bought my first MacBook Pro a few days ago. I can't seem to get my PC to see my MacBook Pro on the network. Can anyone help me get my PC to see my MacBook Pro on my network t?

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Forgot Your Account Password
For Lion/Mountain Lion
    Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
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     instructions in the dialog window that will appear.
     Or see Reset a Mac OS X 10.7 Lion Password and
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Does the mac pro support WPA2 network?

I am trying to figure out if the Macbook Pro supports WPA2 network.

Even the earliest MacBook Pro model (MacBookPro1,1), model# A1150 supported 802.11b/g wireless with WEP, WPA, & WPA2 security.
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AirPort Extreme Card
OS X 10.3.3
AirPort Utility 5.0

Macbook pro "breaks" wireless network

greetings,
whenever i'm home, i use my macbook pro to connect to our wireless network, a network that is usually only used by PCs (one running Network Magic).
However, whenever i connect, it works great but sporadically it will "break" the network, causing the router to be reset. when it's down, it doesn't work for any computer. but this only happens when my computer is connected. also, this is the second router, so it shouldn't be that.
is this caused by my wireless card or os?
Message was edited by: mfeury

I've been experiencing a very similar issue.
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However once I disable WLAN on the MBP, the issue goes away.
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HT4796 Can Windows 7 be installed on my new MacBook Pro, through my network connection? The disc would be in my Windows desktop.

Can Windows 7 be installed on my new MacBook Pro, through my network connection? The disc would be in my Windows desktop.

I wouldn't recommend installing through a network connection.
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Unable to connect to Mac Pro with 2 network interfaces

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I'm stumped... Maybe it's something simple that I'm just missing. If you have any idea how I can access the computer from home please let me know so I can try it.
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Just installed TeamViewer and we're using that. Works great.

Trouble with MacBook Pro finding AirPort networks

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This is how I fixed the problem on my MBP.
Go to Macintosh HD > Library > Preferences
Delete the folder SystemConfiguration
Go to System Prefrences > Network > Show+Network Port Configuration. Check Airport and Built-in Ethernet and make sure Airport is on the top of the list.
Reconfigure your wep passwords and it should work. Worked for me. Also, you will have to redo your power settings.
Regards,
David Rodriguez

I have the new iOS 6.1.2 on my iPad. My wifi connects to my home network but keeps dropping it and won't reconnect. Did not have this problem with previous iOS.

I have the new iOS 6.1.2 on my iPad. My wifi connects to my home network but keeps dropping it and won't reconnect. Did not have this problem with previous iOS. Apple, you have a quality assurance issue. Don't be like Microsoft where they send out pieces of junk with testing it.

Try the following to rule out a software problem:
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Reset iOS device: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
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- iOS: Recommended settings for Wi-Fi routers and access points
- Restore from backup. See:
iOS: How to back up
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If still problem make an appointment at the Genius Bar of an Apple store since it appears you have a hardware problem.
Apple Retail Store - Genius Bar

P35 Platinum - Intel PRO 1000 MT Network Adapter problem

Greetings.
Found out very strage thing - installation of "Intel PRO 1000 MT Network Adapter" in any PCI slot disabled onboard Intel raid controller! :(
If this card installed Intel Matrix Storage Manager screen do not appear in boot process and Raid do not listed in Boot Sequence bios options, instead
I can see Network Adapter in this list. I tryed "Boot from othe devices" option, bus it not work too.
So with this adapter installed I'm not able to boot from raid.
Currently I use bios version 1.4
Any idea how to solve this?
P.S. Installation of old 3COM 3C905CX-TX-M Adapter did not have such effect, but there is no Win x64 drivers for it.

Hi Maesus,
Thanks, I did and filled information about my computer configuration.
Hope it'll help solve the problem.
AaronYuri, thans go reply.
But maybe it's some misundestanding - when I say that installation of Intel adapter in PCI slot "disabled onboard Intel raid controllr" it does not mean that raid controller disabled in bios settings - settings in "Integrated Peripherals->On-chip ATA devices" are the same (PCI IDE BusMaster = Enabled, Raid mode = RAID), but it's looks like bios "did not see" raid controller - it disappers from list of devices to boot from and I did not see screen of Intel Matrix in boot proces (this screen alwais presents if controller switched in raid mode)

K920 - Z2 Pro - Network Fluctuation & Network Drop.

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