I just moved in Sep. My first few weeks my Internet was really flaky, then it went out for a week. I called AIS every morning, everything was very cordial, they said a technician would look into the problem etc. After a week a technician finally called me to confirm my Internet was back working. 

 

The next month it went up and down a couple of times, maybe for an hour or two. No big problem. 

 

A few days ago I was up early and sure enough it went out around 0500. I kept a close eye on it, it stayed down the rest of the day. Early the next morning I was up, 0200 and suddenly it came back on again. There's no way a technician was in my building at that hour. I don't think anyone else in my building had this problem. 

 

Just so weird, I don't understand what's going on. 

 

I have a feeling this is going to continue to happen. My Internet's in my landlord's name he can be loud and vocal maybe he burned his bridges before I moved in lol. 

ALL infrastructure in Thailand is unreliable.  For example, I have a UPS for our home network and another for my desktop.  Almost every day I'll here the beep announcing a power failure.  Many of the failures last only a second or less or the grid will bounce a few times.  Still... that's enough to drive some of my IOT gear crazy! 

3 hours ago, Furioso said:

I don't think anyone else in my building had this problem. 

Have you asked the building management whether anybody else has this issue?

 

3 hours ago, Furioso said:

then it went out for a week.

That is not normal - whereabouts are you as somebody local to you may have some thoughts?

I had so many problems with internet outages in the center of Bangkok that I finally decided to use 2 different providers at the same time. One of them always works. A friend of mine did the same, also in Bangkok.

Odd, I have almost no power outages in a suburb of Chiang Mai.

1 hour ago, gamb00ler said:

ALL infrastructure in Thailand is unreliable.  For example, I have a UPS for our home network and another for my desktop.  Almost every day I'll here the beep announcing a power failure.  Many of the failures last only a second or less or the grid will bounce a few times.  Still... that's enough to drive some of my IOT gear crazy! 

Damn that is very telling your getting dirty power!

12 minutes ago, topt said:

Have you asked the building management whether anybody else has this issue?

 

That is not normal - whereabouts are you as somebody local to you may have some thoughts?

I haven't asked building mgt. but I do know a few people who live on different floors and they don't seem to have any problems. However, I think my landlord, who lives 2 doors down, has had similar issues but it's really difficult to engage conversation with him. I think when mine was down for a week his was as well so me calling everyday got us both fixed. 

 

To give you some context I live in a 30 story condo building/1200 units in south Jomtien, next to D'Varee hotel. This building is pretty strange as it's about 10%-20% occupied. There's only 5 out of 40 condos occupied on my floor. Some floors have zero occupants. It's like living in a haunted house if you get off on the wrong floor. 

 

Honestly I can live without internet now and then as I have hotspot. This is just a big mystery to me I just can't figure this one out. I know a little about technology but to have the Internet go out at 0500, be out the rest of the day, then suddenly come back on at 0200 seems really weird a definite curiosity killed the cat situation. 

25 minutes ago, Furioso said:

I think when mine was down for a week his was as well so me calling everyday got us both fixed. 

If it's in his name then maybe he hadn't paid........

if only affecting the 2 of you then cannot think of anything else as presume they are the only provider to the building.

4 hours ago, Furioso said:

I just moved in Sep. My first few weeks my Internet was really flaky, then it went out for a week. I called AIS every morning, everything was very cordial, they said a technician would look into the problem etc. After a week a technician finally called me to confirm my Internet was back working. 

 

The next month it went up and down a couple of times, maybe for an hour or two. No big problem. 

 

A few days ago I was up early and sure enough it went out around 0500. I kept a close eye on it, it stayed down the rest of the day. Early the next morning I was up, 0200 and suddenly it came back on again. There's no way a technician was in my building at that hour. I don't think anyone else in my building had this problem. 

 

Just so weird, I don't understand what's going on. 

 

I have a feeling this is going to continue to happen. My Internet's in my landlord's name he can be loud and vocal maybe he burned his bridges before I moved in lol. 

 

Add a data package to your phone sim and hot spot from it.

4 minutes ago, topt said:

If it's in his name then maybe he hadn't paid........

if only affecting the 2 of you then cannot think of anything else as presume they are the only provider to the building.

He just paid for a whole year in late Sep, he showed me the receipt. Internet was really up and down in Oct, I constantly was trying to fix situation by rebooting either the wi-fi router or PC.

 

The one week outage was approx 1-7 Nov.

 

The 0500-0200outage(21 hours) was the other day. 

11 minutes ago, Ralf001 said:

 

Add a data package to your phone sim and hot spot from it.

Yes, I have ability to hotspot via my smartphone.

I have AIS unlimited data(4 gbps) I paid 2500 baht for one year. 

6 minutes ago, Furioso said:

Yes, I have ability to hotspot via my smartphone.

I have AIS unlimited data(4 gbps) I paid 2500 baht for one year. 

Good to hear, problem solved!

3 minutes ago, Ralf001 said:

Good to hear, problem solved!

It's def a workaround how would you handle smartphone battery management? 

5 hours ago, Furioso said:

I called AIS every morning, everything was very cordial

 

Are AIS providing you with  internet directly to your room  or to  a server room of the condo ?

..I hear that a lot of older condos are still wired only for copper 

( ADSL)  and will not let the ISP provide fibre directly to the room   so that means  the condo management have power over the internet connection   also means that if there are problems with the equipment in the server room then its up to them to sort it out  not the ISP.

1 minute ago, Furioso said:

It's def a workaround how would you handle smartphone battery management? 

 

Get a 4/5g router/modem  stick the sim card in leave it  powered on 24/7...   

2 minutes ago, Furioso said:

It's def a workaround how would you handle smartphone battery management? 

I would leave the phone on charge.

 

FWIW I have an AIS wifi router, I put the data sim in it.

5 hours ago, Furioso said:

I just moved in Sep. My first few weeks my Internet was really flaky, then it went out for a week. I called AIS every morning, everything was very cordial, they said a technician would look into the problem etc. After a week a technician finally called me to confirm my Internet was back working. 

 

The next month it went up and down a couple of times, maybe for an hour or two. No big problem. 

 

A few days ago I was up early and sure enough it went out around 0500. I kept a close eye on it, it stayed down the rest of the day. Early the next morning I was up, 0200 and suddenly it came back on again. There's no way a technician was in my building at that hour. I don't think anyone else in my building had this problem. 

 

Just so weird, I don't understand what's going on. 

 

I have a feeling this is going to continue to happen. My Internet's in my landlord's name he can be loud and vocal maybe he burned his bridges before I moved in lol. 

The internet from AIS is tending to drop for no apparent reason. I can make assumptions as to why this is happening but unfortunately AIS will not confirm anything.

NT fiber is better.

1 hour ago, johng said:

 

Are AIS providing you with  internet directly to your room  or to  a server room of the condo ?

..I hear that a lot of older condos are still wired only for copper 

( ADSL)  and will not let the ISP provide fibre directly to the room   so that means  the condo management have power over the internet connection   also means that if there are problems with the equipment in the server room then its up to them to sort it out  not the ISP.

If that's the case why wouldn't AIS tell me this when I call them? 

Also, there's no IT people working in this condo building.

I just found out my WiFi router is connected via a DSL(2 wire) connector. 

1 hour ago, Furioso said:

I just found out my WiFi router is connected via a DSL(2 wire) connector. 

 

There you go then as I guessed   there will be a fibre link from AIS ??   to the "server room"  in (probably) your condo basement   feeding into  an ADSL  'distributor'  box   maybe one for each floor or couple of floors  and maybe your box is faulty  or the IT guys like to play games in the server room  or there is a dodgy  connection  in the copper line from you to the server room...or maybe someone on your line still has an analogue phone ???..

Go talk to the condo management about getting a direct fibre link to your room..if there is no management then talk to AIS  or another ISP to provide fibre direct to your room....

 

Or just use the 4/5g  cellular internet connection if it works for your needs.

 

1 hour ago, Furioso said:

If that's the case why wouldn't AIS tell me this when I call them? 

I have no idea who is providing you with internet..if you call AIS and they don't tell you then maybe they are not providing you ?????  don't know ask  the condo management or your landlord I have no idea. 😋

11 hours ago, johng said:

 

There you go then as I guessed   there will be a fibre link from AIS ??   to the "server room"  in (probably) your condo basement   feeding into  an ADSL  'distributor'  box   maybe one for each floor or couple of floors  and maybe your box is faulty  or the IT guys like to play games in the server room  or there is a dodgy  connection  in the copper line from you to the server room...or maybe someone on your line still has an analogue phone ???..

Go talk to the condo management about getting a direct fibre link to your room..if there is no management then talk to AIS  or another ISP to provide fibre direct to your room....

 

Or just use the 4/5g  cellular internet connection if it works for your needs.

 

I have no idea who is providing you with internet..if you call AIS and they don't tell you then maybe they are not providing you ?????  don't know ask  the condo management or your landlord I have no idea. 😋

You've definitely helped me figure out most of this mystery. Yes, I have a DSL cable coming out of the wall and around noon yesterday I unplugged then replugged the cable coming out of the wall and my Internet connection didn't come back. I rebooted the router, fiddled around with the cable etc and still no luck.

 

Now here's the weird thing, I thought if I leave it alone for around 12 hours the Internet would magically come back and yes, around 12 hours later the Internet started working again. Sure, it could be a dodgy cable but it's kinda predictable that when my internet goes out it will be out for around 12-24 hours then magically come back on without me doing anything.

 

Once again I'm not an IT professional or anything but it looks to me more like a hardware issue(specifically a router/switch/server) than the cable. For example, I pull out the cable, the router can't allow me back in because of some setting or it's always overloaded it doesn't take much to kick my connection out..later on traffic slows down it reconnects me. 

 

Of course I will now replace the cable with a new one but I don't truly believe it will solve my issue. 

 

And as a reminder, I'm basically in a derelict building that's 10% occupied and even though it was built around 15 years ago I have copper running to my room instead of fiber. Yes, fiber connection would be one solution, also the 4g/5g AIS router is not a bad idea if I continue to get knocked out of service for 12-24 hours, or longer. 

 

Thanks again for your help!

19 hours ago, johng said:

There you go then as I guessed   there will be a fibre link from AIS ??

 

Yes, this was the AIS "FTTC" (Fibre to the curb) product, which terminates fiber in the building (ground floor) and utilizes existing copper wiring (and xDSL service) in the risers to floors. Customers could get a plug/play DSL router to use in their rooms.

 

I don't think this product is available now (obviously, existing customers continue with the service.

 

Running fibre all the way to each apartment in a 30-floor (sparsely populated) building is expensive.

 

Intermittent connectivity is probably down to some dodgy copper connections.

 

I'd ask AIS for a quote on a full fiber connection. And a new xDSL router.

 

 

31 minutes ago, bamnutsak said:

 

Intermittent connectivity is probably down to some dodgy copper connections.

 

Or a bad port card (4/8/16/32/64 ports per card) on the xDSL shelf.

On 12/6/2025 at 11:48 AM, bamnutsak said:

 

Or a bad port card (4/8/16/32/64 ports per card) on the xDSL shelf.

I found a forum where a few users have the same setup as I do(big Condo bldg, ADSL Distributor box on bottom floor, copper wire to each unit, etc. Daily outages quite common(mine is OUT right now), sometimes technicians troubleshoot it to death and give up and simply say "get fiber".

 

Since I'm a renter I can't do much about getting fiber so I am simply throwing my hands up in the air and labeling the cause for my outages as "overload" and I'm buying a sim enabled wifi router today. 

 

 

 

Don't rush into a purchase, as there are many factors to consider, such as the best network and bandwidth requirements. 4Mbps, isn't going to be much good for streaming Full HD and especially not 4k media.

If you are looking at an Unlimited connection, they are available, up to 20Mbps.

Best value is with GoMo, but there you will need a Thai friend to register the SIM for you.

 

On 12/5/2025 at 9:04 AM, Furioso said:

I have a feeling this is going to continue to happen. My Internet's in my landlord's name he can be loud and vocal maybe he burned his bridges before I moved in lol. 

 

I'm not even going to try to defend your ISP.

 

But I got so tired of spotty wifi in the hotels where I stay that I bought a portable router (DLink) and a data-only SIM card that allows me to get on the interwebs even if the hotel tech staff falls down on the job.

 

In fairness, I later installed the data only SIM into a Samsung tablet with a SIM slot and use that for a mobile hotspot so I didn't even need the portable DLink wifi router.  But the router was 1400 baht and the tablet was 9500 baht, so I didn't waste much, and not everyone has a SIM capable tablet laying around.  The data only SIM (True, unlimited data only plan) was about 2000 baht for 12 months.  At the time, they had the only unlimited plan that didn't throttle speed after a while.  You may want to ask if there are others today.

 

Just a thought...  $60 for a year of backup internet (and internet all over Thailand) has been a great spend.  The speed isn't broadband fast, but faster than the hotel wifi when it gets jammed up or doesn't work at all.  It's very adequate for YouTube videos, etc.

 

 

 

The TRUE Unlimited 15Mbps SIM is now 4,000 baht. But no point in springing for that unless you know that TRUE reception is good enough within the condo and that the possible router/MiFi can cover the necessary frequencies.

 

https://www.alottechs.com/product/select-sim-thor 15Mbps

 

https://www.alottechs.com/product/select-true6mbps at just 700 baht less doesn't seem great value.

 

GoMo/AIS is cheaper anyway.

 

 

On 12/8/2025 at 8:35 AM, FrankieGoesToHolly said:

Don't rush into a purchase, as there are many factors to consider, such as the best network and bandwidth requirements. 4Mbps, isn't going to be much good for streaming Full HD and especially not 4k media.

If you are looking at an Unlimited connection, they are available, up to 20Mbps.

Best value is with GoMo, but there you will need a Thai friend to register the SIM for you.

 

I appreciate your response and as I type this my Internet went out for the 2nd time in 5 days. I estimate it'll probably be down about 1 day a week for the 9 months I have left in this condo. 

 

Anyway, I'm going to buy a 4g/5g Sim card wifi router off Lazada today. I see they average 700 baht for a decent one, hopefully I'm getting a compatible one lol. 

 

As far as speed of service I don't really mind getting the AIS 1yr unlimited 4Mbps for 2500 baht as that's what I'm doing right now via my smartphone hotspot and it's more than adequate. 

 

But yes, my internet is getting knocked out on a pretty regular basis I don't mind paying <100 bucks a year to fix this situation. 

 

 

3 months later - Last week the power went out for just about a second, my TV and PC shut off and I just shrugged as I knew my DSL(copper wire) Internet connection was finished for at least that day. Remember that usually when my Internet goes out it usually takes about 12 hours before it starts working again. Not this time, I've been hotspotting a whole week.

So, I called AIS expecting the run around again(remember last time I called AIS I had to call them seven straight days). But this time they said they'd have a technician come out in a few hours. I didn't believe it but sure enough around 1400 today a technician called me and asked if my router was lit up and working properly. I checked and told him no then he said he'd call me back in 10 minutes. 20 minutes later he called and sure enough it was working again.

I don't know why a millisecond power outage knocks my internet out for the count. But I guess it requires a visit my a technician to go to the level floor server room and "do something". Thankfully I have a hotspot backup but it's not nearly as fast. This building has way too many problems(not just Internet) so I'll be moving out in August. Maybe Bangkok lol.