Category Archives: Computers

ZTE MF286R DNS Settings

I recently subscribed to Telia’s mobile Internet service and bought 4G router they sell: ZTE MF286R. The first thing I noticed, was the absence of DNS settings, which is a no-deal for me, because I use my home DNS server as a first line of defence against ads, spam, pr0nogrąphy, malware and other unwanted websites. Thankfully, this problem is easily solvable.

Pi-hole is my DNS server and it has an integrated DHCP server functionality (i. e. it can assign IP addresses to network devices). When you appoint it as DHCP server, it’ll serve as DNS server too. To achieve this, firstly, turn-off DHCP functionality in the ZTE router settings (Advanced settings -> Router):

fig. 1 Turning-off DHCP server in ZTE MF286R router.

Secondly, turn-on DHCP server in Pi-hole (fig. 2):

fig. 2 Turning-on DHCP server in Pi-hole

That’s all.

Disabling Firefox’s DNS Over HTTPS via Windows Group Policy

  1. Download Group Policy templates for your Firefox version here
  2. Copy *.admx files to C:\Windows\PolicyDefinitions
  3. Copy *.adml files to from en-US to C:\Windows\PolicyDefinitions\en-US (or other language folder if applicable and available)
  4. Launch gpedit.msc (gpedit.msc is not available on Home versions of Windows, if you have that, I recommend using third party Group Policy editor like PolicyPlus)
  5. Navigate to Computer Configuration -> Administrative Templates -> Mozilla -> Firefox -> DNS Over HTTPS
  6. “Enabled” -> Disabled; “Locked” -> Enabled.

Huawei B525 4G router: new firmware – no more changing DNS server manually?

Recently I upgraded my Huawei B525s-23a 4G router’s firmware (new software version 81.191.13.00.1134, Web UI version 81.100.31.02.1134) only to find out the trick to change DNS servers has stopped working:

No more DNS settings for you

After a brief inspection with browser’s developer console, worry not, DNS settings are still here (it’s Huawei, so they are hidden of course); to show the settings navigate to Router -> DHCP, press F12 and enter this into developer’s console:

$('#dhcp_dns').show();

Press enter, and the settings are back:

Change DNS server on your Huawei B525 again!

Tested with Firefox, Chrome and Chromium based Edge.