4 hours ago, LosLobo said:

On TV try:

• Update the TV firmware.

• Update or reinstall the Netflix app.

• Make sure the TV’s date/time is correct.

NB:

• Netflix won’t cast properly from a browser; you need the Netflix app installed on your phone or laptop.

• If you’re on the Standard with Ads plan in Thailand, casting and downloads are blocked — only Standard or Premium allow it.

 

 

18 dollars a month, no ads 2  devices allowed

 

You have to believe this.  because why would I lie  - after 6  going on 7 days now  I CAN NOT CHANGE THE DATE OR TIME ON THE TV IT WON'T ALLOW ME TO NO MATTER WHAT I CLICK ON.  I also can't delete the apps, it literally won't let me delete and download again.  7 days, 100% of things tried and still no netflix and now no Youtub e either lol   -  technician won't speak any english and problem will not be resolved, willing to bet 100 dollars on that 

 

  Sure, you will think I am joking or just plain stupid,  but  have you got any idea how many things I have tried in freaking 7 days??   I have been on PC's since the 90's this is beyond  belief really  

This troubleshooting list was put together with ChatGPT 5.0.
 

Error -121 on Hisense usually means the TV clock is out of sync or the network isn’t working properly. Netflix and YouTube are built-in system apps, so you can’t uninstall them.

Try these steps in order:

1. Restart TV and router.

2. Set DNS manually → 8.8.8.8 / 8.8.4.4 (Google) or 1.1.1.1 / 1.0.0.1 (Cloudflare).

3. Check date/time → turn off “Auto time” in settings, then set the clock manually.

4. Reset network settings → forget and reconnect to Wi-Fi, or swap to Ethernet if possible.

5. Check for firmware update → if TV won’t connect, use a USB update from Hisense support site.

6. Factory reset the TV.

7. If none of these work, it’s likely a hardware fault in the TV’s network board, which the technician will need to fix or replace.

21 hours ago, Jai Yen said:

no VPN,  also disconnected days ago

 

I have tried,  I'd say,  just about everything, including customer support at 3 places  with no luck.  wasted at least  9 or 10 hours on it. 

 

Oh well,  YouTube it is  

did u try to uninstall Netflix and then do a clean installation

17 minutes ago, LosLobo said:

This troubleshooting list was put together with ChatGPT 5.0.
 

Error -121 on Hisense usually means the TV clock is out of sync or the network isn’t working properly. Netflix and YouTube are built-in system apps, so you can’t uninstall them.

Try these steps in order:

1. Restart TV and router.

2. Set DNS manually → 8.8.8.8 / 8.8.4.4 (Google) or 1.1.1.1 / 1.0.0.1 (Cloudflare).

3. Check date/time → turn off “Auto time” in settings, then set the clock manually.

4. Reset network settings → forget and reconnect to Wi-Fi, or swap to Ethernet if possible.

5. Check for firmware update → if TV won’t connect, use a USB update from Hisense support site.

6. Factory reset the TV.

7. If none of these work, it’s likely a hardware fault in the TV’s network board, which the technician will need to fix or replace.

 

would Love to try  this  - sadly, and again I have zero idea why, I can not adjust the time and date settings

 

I have to be really stupid  because I have tried this since Monday with zero luck

8 minutes ago, Mavideol said:

did u try to uninstall Netflix and then do a clean installation

 

can't uninstall, won't let me 

5 minutes ago, Jai Yen said:

would Love to try  this  - sadly, and again I have zero idea why, I can not adjust the time and date settings

 

I have to be really stupid  because I have tried this since Monday with zero luck

If you have already done steps 1 and 2 just leave it for the technician.

Mental note "Never buy Hisense TV".

Which MODEL of TV?

 

Just reset the TV to Factory Settings.

20 minutes ago, JakeC said:

Which MODEL of TV?

 

Just reset the TV to Factory Settings.

 

 

done multiple times 

15 minutes ago, LosLobo said:

You only get what you pay for — if you’re lucky.

I baby sat of a top-of-the-range Hisense “Smart” TV for three months, right after using an LG OLED AI C9 — if it had been mine, I’d have taken it straight to the dump.
 

I’ve owned two Samsungs and three LGs — and LG would still be my pick. Great connectivity, no nonsense.

 

 

I am renting  in Pratumnak  - but surprisingly not a Russian lol -  when I came in here there was no TV,  the owner had to buy me one first day and that's what they got, surely for $$$ reasons ......thing is, for YT and movies from one of my external drives, it works fine, picture is great, no complaints

 

  Ordered Netflix on Monday and everything went Haywire, like what the bloody hell -  100% sure it has something to do with the time and date settings but Lord knows I have tried changing that for 7 days now with no luck.  Just talked to support again and they thankfully got me online so YT and the other apps are fine again;  for Netflix I   still get;

 

"Please check your network connectivity and check the time and date settings  (-121)"

 

Reddit has many people with that issue, all fixed relatively easy  but not here because of the time and date  thing, gonna be  really angry if the technician fixes it with one click somewhere -  you all gotta believe I have tried literally everything since Monday before posting here, it was kinda my last hope that someone here has the same issue - Thanks for the help 

Seems you’ve done all the right steps — resets, DNS, Auto Time, factory reset — and Netflix still throws -121 while YouTube runs fine. That’s not you, that’s the TV.

If the clock menu’s locked, only a tech can sort it: service-menu tweak, firmware flash, or worst case a bad clock chip. Seems you’ve already taken it as far as any user can.

Have a beer and relax 🙂

yeah  my brain is fried,  so bizarre  I just wanted to see some new movies lol since all mine are years old

 

Back to the point of the original post -  I can't even cast to that TV and have NO idea why  - internet says ''just make sure  they are on the same Wi-Fi signal and cast it"!  way cool, so  awesome and that's a great tip!  too bad I have tried it  since Monday and just keep seeing this  - this also shows when I try and cast YT - it's 100% the TV and yet  no idea how it will start working, have tried everything 

 

waiting for tech now  

 

 

2 minutes ago, JakeC said:

Which MODEL? How difficult can this be?

 

Hisense

 

How difficult can it be?  Since Monday last week

 

Wanna come over and fix it?  

2 hours ago, Jai Yen said:

can't delete the app from my TV  I  LITERALLY HAVE NO IDEA  WHY

 

 

You can't delete it because Hisense does not allow you to delete pre-loaded apps.

Hisense gets paid to have certain apps pre-installed on their tvs. The same applies to Disney etc.

 

FWIW I cannot connect using Netflix with my Hisense either. When I run a test, it shows three Netflix servers, two connected but the third never does.

n.b. you can reset apps but I tried with the Netflix app and no help.

 

5 hours ago, LosLobo said:

True — AIS, DTAC and True all resell Netflix,

 

With True, we have a True box with apps and the ability to play USB sticks using apps like VLC.

 

If the OP has a True box or equivalent, have they tried using the Netflix app installed there?

 

With the True box, you can download apps from the Playstore to the box for anything not pre-loaded.

15 minutes ago, VR333 said:

 

You can't delete it because Hisense does not allow you to delete pre-loaded apps.

Hisense gets paid to have certain apps pre-installed on their tvs. The same applies to Disney etc.

 

FWIW I cannot connect using Netflix with my Hisense either. When I run a test, it shows three Netflix servers, two connected but the third never does.

n.b. you can reset apps but I tried with the Netflix app and no help.

 

 

With True, we have a True box with apps and the ability to play USB sticks using apps like VLC.

 

If the OP has a True box or equivalent, have they tried using the Netflix app installed there?

 

With the True box, you can download apps from the Playstore to the box for anything not pre-loaded.

Got the True box, but it’s only linked to the free stuff — I actually pay Netflix separately.

1 hour ago, JakeC said:

Just reset the TV to Factory Settings.

 

He already said he did that several times. At least don't waste everyone's time.

1 hour ago, Jai Yen said:

yeah  my brain is fried,  so bizarre  I just wanted to see some new movies lol since all mine are years old

 

Back to the point of the original post -  I can't even cast to that TV and have NO idea why  - internet says ''just make sure  they are on the same Wi-Fi signal and cast it"!  way cool, so  awesome and that's a great tip!  too bad I have tried it  since Monday and just keep seeing this  - this also shows when I try and cast YT - it's 100% the TV and yet  no idea how it will start working, have tried everything 

 

waiting for tech now  

 

 

Out of curiosity, have you tried the Netflix app to cast from your desktop? As I mentioned earlier, Netflix blocks casting from desktop browsers because of copy-protection (DRM) — you have to use the app

Off topic bickering and baiting posts removed also replies

Have you tried all of this on the TV?

 

 

4 hours ago, Jai Yen said:

 

18 dollars a month, no ads 2  devices allowed

 

You have to believe this.  because why would I lie  - after 6  going on 7 days now  I CAN NOT CHANGE THE DATE OR TIME ON THE TV IT WON'T ALLOW ME TO NO MATTER WHAT I CLICK ON.  I also can't delete the apps, it literally won't let me delete and download again.  7 days, 100% of things tried and still no netflix and now no Youtub e either lol   -  technician won't speak any english and problem will not be resolved, willing to bet 100 dollars on that 

 

  Sure, you will think I am joking or just plain stupid,  but  have you got any idea how many things I have tried in freaking 7 days??   I have been on PC's since the 90's this is beyond  belief really  

Dont you feel that the issue is with the TV?

How about doing a reset on the TV and trying again? Failing which you might have to contact the shop you bought the TV from - OR go there and ask them to do a demo on the same model TV.

 

 

Call the shop where you bought the TV and ask them to send a tech. If they refuse, complain higher above to the manager and if still no action, then ask a friend abroad, (not anybody in Thailand to avoid all the legal scam-hassles)  to name and same that store and brand in giving no details that can track them back to your situation obviously. 

Here is another video which seems more comprehensive, but 4 years old. There is one comment thats similar to your problem which seems to have  been solved. All the best, anyway!

 

QUOTE

@araceliapritchard168
1 year ago
Awesome!!!! We just purchased a new Hisense ultra high Definition TV and couldn’t get Netflix to work. (5/2/2024 🌺) Your first instructions were to unplug the TV from the wall. That’s exactly what I did. Then to plug it back in. Did that! And I clicked on Netflix and tada! Thank you So much!!!

UNQUOTE

 

 

no idea where this TV came from it's brand new out of the box Maintenance set it up I watched them take it from the box it still had plastic on it

 

no idea which shop she got it from and she speaks zero english, I rented through an agent  

 

lol  of course I tried all those things including unplugging from the wall 7 days ago

 

  May have unplugged/reset/plugged back in, I'd guess, at least 50 times by now

2 hours ago, LosLobo said:

Out of curiosity, have you tried the Netflix app to cast from your desktop? As I mentioned earlier, Netflix blocks casting from desktop browsers because of copy-protection (DRM) — you have to use the app

 

 

this will sound stupid of course but can you tell me how to do that

 

because I just downloaded the NF for my PC  and it works, way cool -  but can't see a Cast option anywhere, in the browser it shows under my google account but  where is it here  

1 hour ago, Jai Yen said:

this will sound stupid of course but can you tell me how to do that

 

because I just downloaded the NF for my PC  and it works, way cool -  but can't see a Cast option anywhere, in the browser it shows under my google account but  where is it here  

Apologies, sorry — my earlier comment was wrong. The Netflix Windows app doesn’t support casting. From a PC, the only way is through Netflix.com in Chrome to a Chromecast or Google TV device. Thai Hisense models ship with VIDAA OS, unlike US/EU models that include Google TV OS. Best to focus on getting the TV itself fixed.

Twenty four hours later and the OP is still unable to quote the model number of the TV involved...

It seems beyond him, so perhaps a suitable Android box is the answer.

been trying this  and it was the reason I started this thread, I can't cast either from my phones or PC

 

Once again I must say this -  I HAVE NO IDEA WHY -  but when I put my PC and my TV on the same Wi -Fi, which is easy and of course I know how to do that,  the PC simply says No Devices Found -  while both are online and doing fine

 

Technician never showed today

2 minutes ago, JakeC said:

Twenty four hours later and the OP is still unable to quote the model number of the TV involved...

  Hisense  55u8n

 

If you told me this  24 hours ago I was asleep 

but actually 24 hours ago was 830, I wasn't asleep yet, I went to bed at Midnight -  you wanna come fix it? 

As nothing seems to work, why not visit any shop that has a demo TV of this make & model and ask for a demo? It really seems the TV has an issue, hardware or software.