Some Apps not Working on Wifi but Works with Mobile Data

[Mian_Kashif_Ahmad]

              My Easypaisa App & Bank App are not working on Wifi Connection on my Galaxy A51 android 11 but when i turn on Mobile Data Everything start working  fine. While my friend has Huawei Phone connected with the same wifi but his apps are working fine on that same WiFi. Also i have done the following steps already but nothing happened.

1. Turn on Airplane Mode & then turn off

2. Forgot Connection & reconnect to WiFi 

3. Reset Connection & Network Settings 

4. Reset Apps Preferences 

5. Clear Cache & data of the specific apps that aren't working 

6. Uninstall and Reinstall the Apps 

7. Mobile Data Only Apps are "OFF"

 If you guys have solution for this issue other than i mentioned above, kindly share with me. I'll very Thankful to you guys coz it really important as my financial apps aren't working which sometimes creates a big problem for me as I'm away from home. 

Thank You

[Prabhav Kamat]

I was facing similar issue with my samsung note 20 ultra...after checking multiple setting on the router I could identify that it is an issue with ipv6 DHCP settings. Try doing this:

Connect to your router and go to ipv6 DHCP settings. (Screenshot of my Huawei router)

Set resource allocation mode to manual. Ensure that the address assignment and other assignment modes are not SLAAC. 

Restart the router. Tested on 2 separate networks and has worked for me. Best of luck!

 

[Ali_Ahmad]

In my case too it was an issue in the router settings, i contacted with router provider i.e. TP link and they suggested me following changes in the settings. As soon i did these changes all my apps started working fine. See attached screenshot for better understanding.
Hope it will help members who are facing similar issue now.

Please go to Advanced>>Network>>Internet, then please change the Advanced>>MTU size to the 1400.

[tjdelrosario]

Found the permanent solution for this issue:
From.your phone, go to Settings> Connections.
Find the WIFI name then click the settings/gear icon.
Scroll down and look for IP Settings, change it to 'Static'.
Change DNS 1 to 8.8.8.8
Change DNS 2 to 1.1.1.1
Save the settings.

Problem resolved!