Nokia Lumia 720 internet sharing DNS problem

Hi,
I am using Nokia Lumia 720 (OS version 8.0.10517.150) for internet sharing and have had DNS issues lately. When connecting to hotspot with my laptop I get DNS server is not responding error. Phone has data connection and I can browse the internet through phone but cant use it to share the data connection. When I connect my laptop with other wifis it works fine also so the fault must be in Lumias hotspot generation.
Had the same problem few weeks ago but then restarting the device and changing hotspot settings helped but it does not do the job right now.
Any ideas?

Hi kalverk,
Welcome to the forum!
Have you tried using your micro-SIM card with other internet sharing capable phones to verify it the issue is network or device related? Aside from your laptop, have you tried sharing your Lumia 720's internet connection with other phones?
Here are some tips that might help you resolve the issue:
1. If enabled, switch Battery saver mode off: Tap Settings > battery saver > Off. You can also just connect the phone to the charger.
2. Check the signal strength on the phone screen. To increase the signal strength, move around or move towards a window if you are inside a building.
3. Keep your phone in the idle mode. Incoming or outgoing call will interrupt the data transfer until the call ends.
4. Check the cellular data indicator (E, 2G, 3G, H+, 4G) at the left side of the phone's screen. Change the mobile network's highest connection speed from 3G/4G to 2G and back again to make sure that your phone is connecting to the network correctly. Go to Settings > mobile network (or mobile + SIM or cellular or cellular + SIM).
5. Make sure that the internet sharing security type (if not selectable, WPA2 is used) and password settings match between the connecting device and your phone (Settings > internet sharing).
6. Make sure that the operator mobile data plan subscription allows Wi-Fi tethering and your network operator has enabled internet sharing on the phone.
7. If possible, try to create a connection with some other device or force the connecting device Wi-Fi adapter to use 802.11g standard - disable 802.11n mode. On a Windows PC, go to Control Panel > Network and Internet >Network Connections, and right click your active Wireless Network Connection and open Properties >Configure > Advanced, then select 802.11n and set value to Disabled. Once ready, press OK.
8. Connect again, as internet sharing switches off after 5 minutes of inactivity.
Let us know how it will go.

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