There have been a few that posted in forum but not as many as in version 15 Deepin 15.1 had many improvements. I always suggest resetting your router if you have one, and to make sure all Deepn patches have been installed. Also you can run Driver Manager in your applications and see if any drivers are presented to you. If you are still having problems. You can use Deepin User Feedback in your applications and report your hardware information and provide screenshots.

As https://bbs.deepin.org/user/40166 wrote, check your router and check if drivers and firmware for your wireless and wired network cards are properly installed. No problems with my deepin systems.

It's a hotel wireless network and the error that im getting is "the IP configuration is no longer valid". I dont have any drivers showing up in the Driver Manager, however how would I check if the right drivers are installed for my wireless and wired network ? Thanks guys !

I have this issue. When I'm very close to the WiFi router, the connection is made successfully but the speed is very slow. And when I'm a little far from the router, it doesn't connect. My WiFi module is RTL8723BE and I'm using this on Deepin 15.1 64bit with Linux Kernel 4.4

Some users try to disable the power saving feature of the RTL8723BE

Deepin User Feedback will detect your information . To troubleshoot your self first start off identifying your hardware.
terminal command lspci   will give information as to what your hardware is.

Ok, thank for the info, this is what i'm getting:

00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:16.3 Serial controller: Intel Corporation 6 Series/C200 Series Chipset Family KT Controller (rev 04)
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4)
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b4)
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b4)
00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b4)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation QM67 Express Chipset Family LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 04)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04)
03:00.0 Network controller: Intel Corporation Centrino Advanced-N 6205 [Taylor Peak] (rev 34)
0d:00.0 System peripheral: Ricoh Co Ltd PCIe SDXC/MMC Host Controller (rev 08)

Is there anything else I can do ?

Thanks for all your help guys !

So your wireless is a Intel Centrino Advanced-N 6205 . I am see a lot of bug reports in other forums
Is your intel-microcode enabled in your Driver Manager ?
Some of the other forums talk about modifying the iwlwifi kernel driver. Other talk about disable IPV6
You can try searching the other forums to see if you can find something conclusive. I will let you know if I find anything either.

Huuurayyyyy.... I got it working. https://bbs.deepin.org/user/40166 I had actually given up on this but tried searching for the same problem one more time and found about modinfo cli program which shows the possible parameters for the given module name. I disabled a few power related options and it worked. This is the configuration in my case that worked: sudo modprobe rtl8723be fwlps=0 swlps=0 swenc=1.
swenc is for using hardware crypto, but I dont think its relevant to the problem

Good to hear Raeesiqbal !

Yes the intel-microcode is enabled in my Driver Manager. I have no idea how to modify the kernel driver or disalbling IPV6, i don't want to break anything that might affect the functionality of Deepin. Thanks for continuing support !

https://bbs.deepin.org/user/40673 you should try this https://bbs.archlinux.org/viewtopic.php?id=208472