ASUS DSL-AC51

[theDeveloper]

Hello,
I was using this device like 2 months. At first everything was ok no problems at all.
I have been trying to fix this device for 1 week, because i was using 35/3 speed with my ISP.
The speed is gone to 0.10 for download and 3mbps upload. I restored to factory settings like 3-4 times but still same problem. I tried to change every settings i saw on the web panel but still no luck. I updated the firmware to the latest version, still no luck.

Finally i borrowed another modem from my friend, and guess what it was working very well. I literally got 35 download and 3mbps for upload. But when i reconnect my router again still same problem.
I tought the problem is my computer or what else so i tried with 4 different devices, still same problem.

Tried to contact the ISP for this, all they say they cant see any problem.

How can i fix this problem ? Because i was trying to fix this problem like 1 week, searched everywhere but found nothing.
I uploaded the DSL log page to the attachment.

Thanks and sorry for my english.

Edit: In attachment resolution is messed up i think, so => https://imgur.com/a/AXid9Mj

 

[Grisu]

you could try to get help here (they're used to solve DSL-problems with asus modems): http://whatsyourrouter.com/mybb/forumdisplay.php?fid=6

 

[theDeveloper]

you could try to get help here (they're used to solve DSL-problems with asus modems): http://whatsyourrouter.com/mybb/forumdisplay.php?fid=6

Thanks for your reply, i'll try it. But if anybody in the forum has the same issue and solved before i want to know it how they solved it. I hope i find a solution

 

[psychopomp1]

OP,
I don't know which country you're located in, but in the UK, most Asus combined modem/routers (ie DSL variety) are well known for being very unstable and totally messing up your sync rates on xDSL lines, mainly due to the notorious Mediatek dsl chipset they use. Good example being the Asus DSL-AC68U. I'm almost certain your issues are down to the Mediatek dsl chipset which the DSL-AC51 uses. You're better off binning the DSL-AC51 altogether or buying a xDSL modem and using the DSL-AC51 in router only mode.

 

[theDeveloper]

Sorry for late reply, but i think its true what you said. But how can i fix this problem? I sent this hardware asus 2 times and they just making a software reset and sending me back. I think the only thing is left for me, burning this hardware while recording and uploading to internet.
I was trying to fix this problem like 2 months. But the only problem i got is using another modem other than Asus.