Question Smart TV slows down WIFI tremendously, but...

[Andronja]

I've noticed that while the tv is on, on my router the "DS" light starts to blink slowly, and when i run speedtest it goes from 200mbps to like 5mbps, and when i turn off the tv in the middle of testing it goes back to full speed. I've tried some things, some of them worked and i have a temporary solution, but i wanna know how to completely fix it.
First off, my router and tv were in the same plug (dual plug on the wall) and once i removed the TV from that plug, for a while it seemed like it was fixed. But, tomorrow morning, I turn on the TV again, and the same problem occurs, now here's the thing:
My tv and router are on the same tempered glass table, the router is a little lower than the TV, so im thinking could this be some sort of interference, electromagnetic interference or what? I don't really know... BUT, i grabbed the TV and placed in on the floor and to my surprise the internet worked as before...And then i placed the tv again back on the table where the router is, and its still working...Does this have something to do with electromagnetism, static electricity or what...? Now the tv itself is cheap and is about 4 years old, so maybe its the tv's fault? I dont know, but I'm really interested to know what could be causing this issue...Cause frankly i dont wanna grab my TV and place it on the floor and back, every day or whatever...
Thank you

 

[helpstar]

I suspect that the router or internet connection is not stable/faulty.
ask the isp to check

 

[Ralston18]

There could be a number of reasons.

Just FYI using an Arris example:

https://streamdiag.com/tv-accessories/fix-us-ds-light-blinking-arris-modem-2657/

= = = =

More details needed.

Make and model modem?

Make and model router (or combined modem/router)?

Make and model TV?

How many other wired and wireless network devices?

The router's logs (if available and enabled) may provide more information as well.

Who has full admin rights to the router?

 

[Andronja]

Router: Technicolor TC7200.20
TV: Some brand "Vivax" Smart Android TV (it's a brand in my country, but it's cheap)
2 wired PCS and about 5-6 wireless (The tv is wireless)
I can access the router webpage I've changed the password, and are these the logs?:

Thu Jan 23 21:01:59 2025	Critical (3)	Started Unicast Maintenance Ranging - No Response received - ...
Thu Jan 23 13:44:21 2025	Warning (5)	MDD message timeout;CM-MAC=44:32:c8:21:70:df;CMTS-MAC=50:57:a...
Thu Jan 23 11:28:13 2025	Critical (3)	Started Unicast Maintenance Ranging - No Response received - ...
Wed Jan 22 22:53:41 2025	Warning (5)	MDD message timeout;CM-MAC=44:32:c8:21:70:df;CMTS-MAC=50:57:a...
Wed Jan 22 22:49:36 2025	Critical (3)	Received Response to Broadcast Maintenance Request, But no Un...
Wed Jan 22 22:49:02 2025	Error (4)	SW upgrade Failed before download - File not Present
Wed Jan 22 22:48:56 2025	Notice (6)	SW Download INIT - Via Config file SUBsgvca69834ncxv9873254k;...
Wed Jan 22 22:48:48 2025	Notice (6)	TLV-11 - unrecognized OID;CM-MAC=44:32:c8:21:70:df;CMTS-MAC=5...

My router is the one on the left
It is an old router, I've had it for about 3-4 years now so it could be the issue, also in the logs there are some warnings and errors, but idk what they mean haha
But next week I'll call my ISP and see what's the problem.
Thank you