12-29-2017 02:10 PM
Dear all, happy New Year! I have a major problem: My new IdeaCentre 310S - 08IAP desktop frequently drops wireless connection and then is unable to find any wireless network at all. A restart will sometimes help out - but activiating and deactivating Wifi does not help. So a restart is required. Sometimes it works well - it is turned off - and then restrarts not finding any network. In those instance where wireless networks are detected there is plenty of them - once it loses WiFI connection - none can be detected. I have already spent two days on this problem - looking up posts - and I have done all of the below mentioned trouble shooters: https://support.lenovo.com/de/en/solutions/ht502846
While my problem is a combination mentioned scenarios - drop of wifi network - then no detection of any network - then restart - sees many networks at times - or none at all.- is connected and then all of a sudden after 10 or even 20 or 30 minutes loses network connection .. I am very desperate - ready to return this newly bought desktop - after spending 2 full days - can anyone help?
> updates with LAN in a separate room (as PC is placed with wireless access only - no chance to lay a LAN cable anywhere close
> installation of Lenovo System updates
If you are unable to detect or connect to a wireless network and have no prior internet connection please follow: Troubleshooting wireless connectivity issuesMethod 1: Reset TCP/IP Stack and auto tuning - done as described Method 2: Wi-Fi power option - done as described Method 3: Reinstall the adapter - done as described Method 4: Revert network adapter drivers. ( Windows 8 / 10) -not done as no major update has been done . this is a brandnew PC - and it did not work right form the beginning, did not work permanently after instlaling all the windows updates. And I see three updates for wifi driver . and I have no clue which to revert to . as it never worked - neither before or after.... Method 5: Remove Lenovo Access Connection software ( ThinkCenter & ThinkPads) - not applicable - this software is not installed - checked Method 6: Disable RDC - done as described Method 7: Disabling 802.11n Mode - not applicable - checked - not an n-wireless adapter
I have also looked at other things to consider - but if the wireless connection is impeccable when connected - and then again not detectable - this is not a problem of the router - as I can see the wireless network from furhter with my iphone and it works.
Anyone else who shares this problem and anyone who found a reliable fix? Thanks!
04-16-2018 11:28 PM
I have the 310s - slightly different model - but there is an issue that windows has acknowledged. It was so slow I pulled it from our office and bought two other machines. This is the fix - also you should download "system update" from lenovo to get all their latest drivers as their is a new driver.
Workaround #1 (Recommended by Microsoft):
Disable "Receive segment coalescing" (Rsc) on your wireless adapter
Tripp Parks [MSFT], provided an excellent workaround, that is recommended by Microsoft, and appears to resolve the issues. Thanks Tripp! And Tyler [MSFT] has provided a tool that automates it. Thanks Tyler!
Steps to disable Rsc using Microsoft's automated tool:
1) Download the ".diagcab" file located here:
2) Run it, and let it see if it can determine the problem and fix it.
3) Re-test your wireless internet connection.