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Not good after ADSL2+ upgrade

simonbratt99
Power User

hi

 

Anyone else not having a good experience after upgrading from ADSL2 to ADSL2+ (CN21)

Even though our router is ADSL2+ compatible and modulation set to the correct setting, got many ADSL drop offs, sometimes (10 drops in 15mins, sometimes fine for a couple of hours)

 

Had to go back to the G.DMT modulation for some slow stability.

 

Our BB was only 3mb anyway.

27 REPLIES 27

JiC
Member

Try unpluging your live adsl line from the socket wait a couple of mins and plug back in.  It worked for me and mine has been stable for almost 2 days now.  A vast improvement since my upgrade on the 3rd. Previously I was lucky with 10mins of stability at a time without powering down and restarting.etc.etc.......  JiC

simonbratt99
Power User

hi

I must have done that 20 times over the last couple of weeks, what with changing cables, filters, routers and firmware, using the testBT socket

(router Draytec Vigor 2800)

Alun
Master User

Hi simonbratt99,

 

Sorry to see that you are having issues with this. What settings have you got the Draytek setup with?

Regards,

Alun
BT Business Support Forum Moderator


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simonbratt99
Power User

VPI 0

VCI 38

ENcapsulation VX MUX

Protocal PPPoA

Modulation G.DTM (Changed to (as recommended by draytec) ADSL2+ Auto G 992.5 just after the regrade but it kept dropping so after 15 days put it back to G.DTM and got slow connection but ddoesnt drop out)

 

Firmware 2.8.2.1_B1120

ADSL Firmware E.38.2.23 Annex A

 

Primary DNS 194.72.9.38

Secondary DNS 62.6.40.162

 

Draytec Vigor 2800 router (WAN been up now for 162Hrs)

Everything was stable for 3 years before the regrade, tried new RJ11 cable, filters, test socket, replacement router (same make and model) etc.

 

Thanks for any help

 

Alun
Master User

Hi there,

 

I had someone technical look at the settings and they say that they would be fine for our Business Hub (unable to advise for 3rd party equipment) so shouldn't be an issue. I have sent you a Private Message regarding this. You can access this by logging into the forum and then clicking on the envelope symbol in the top right of the screen. Thanks.

Regards,

Alun
BT Business Support Forum Moderator


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simonbratt99
Power User

Thanks Alun ive done the requested.

simonbratt99
Power User

no reply yet from the email but heres my experience over the weekend in case it helps someone

 

Tried the router with alternative ADSL firmware E.67.3.61 (as suggested by draytec) (including putting the modulation on the recommended ADSL2+ Auto(G.992.5)

Ran from Fri 6pm

All looking good stable and some speed increase (20%), checked saturday all not bad (a few uncorrected blocked maybe 400)

Sunday evening internet not working, checked router and there were 3.5 million uncorrected blocks!

 

I noticed the SNR was down to 12.5 from a recorded 16 17

 

So now im back on the normal ADSL firmware (E.38.2.23 annex A )and the old modulation G.DMT, just to get it stable.

 

What is going on.

I hope BT get back to me today

 

thanks

 

 

Alun
Master User

Hi Simon,

 

Sorry, I thought I had posted on here earlier. I had received both emails, thank you, and sent both off this morning to have your issue looked into. You should be contacted shortly. I apologise again for not updating this thread.

Regards,

Alun
BT Business Support Forum Moderator


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simonbratt99
Power User

Thanks Alun,

I hope it will be as soon as tomorrow?