Broadband Related > ADSL Issues
Dropouts & Banding on ADSL. FTTC better?
cadcad4:
Hi,
I have an ADSL connection. For years I've had a stable speed of 4Mbps. For a few weeks: crackly line, dropouts, speed down to 1Mbps and lower. It then reduced to 0.3, etc.
Openreach came. Might be an HR Dis. Pair Quality failed. Was at 90 (I think). Another engineer came and fixed it: cleared "in joint", due to "wear and tear". For a few days, back to normal. Then, speed reduced to 1Mpbs again. Banding? Attenuation 59, Noise Margin 8.
I assume the cable is degraded.
I'm 1.8km from the cabinet, rural.
FTTC is available. My question is: if FTTC still relies on copper from cabinet to property, if I asked my ISP to switch me to a fibre deal (I'm 6mths into an 12mth contract with John Lewis), am I still going to have trouble, because of the line?
Attached is the BT Broadband Checker with FTTC speeds for my property.
Any advice gratefully received.
g3uiss:
Almost certainly the issues will be the same or potential worse.
At your distance FTTC might be worse than ADSL.
tiffy:
Hi and welcome to the forum.
--- Quote ---I'm 1.8km from the cabinet, rural.
--- End quote ---
From your previous ADSL speeds, pre fault, you are obviously on a long line, of course on ADSL service it's total line length to exchange which will determine your max attainable speed.
From the BTw BB checker data you have provided it looks very much like your residence is also a long way from the DSLAM (fibre cabinet) judging from the relativly low DS/US speed predictions for VDSL (FTTC) service.
Regarding any possible, still existing line faults, I would have thought that the line from PCP cabinet (your local connection point) to your residence would be more likely to be suspect than the line from PCP to exchange, this of course would still be a major factor regarding VDSL service, very likely more so than with ADSL service due to the higher frequencies used should you decide to migrate to VDSL provision.
I believe John Lewis BB provision is under Plusnet?
Not sure what modem/router John Lewis currently provide?
If this is a Broadcom chip based device such as ZyXEL is there a possibility of obtaining any line stat's for analysis?
Various method to achieve this are readily available on many areas of this forum and there are many very knowledgable patrons here who can advise on the modem stat's produced.
If/when the line fault is sorted you should achieve much better line speeds than ADSL with FTTC VDSL service, of course, due to line length, there is no expectation of your line ever achieving close to the max FTTC 80/20 standard.
As "g3uiss" has posted, a very bad and/or very long line can certainly produce worse results on VDSL than ADSL, every line is unique, for my money I would give it a try if/when the fault/s are sorted and you are back to stable ADSL service.
j0hn:
--- Quote from: g3uiss on August 20, 2021, 03:49:07 PM ---Almost certainly the issues will be the same or potential worse.
At your distance FTTC might be worse than ADSL.
--- End quote ---
I'd go with the complete opposite to this.
FTTC removes a part of the copper circuit (between the cabinet and exchange). Any issues in that part of the current circuit will be gone.
FTTC is generally much more reliable, particularly Huawei cabinets.
The FTTC estimates are between 13-21Mb so should be considerably faster than the current sync rate on ADSL.
cadcad4:
Thanks for the welcome and taking the time to reply.
I have a Netgear router. The stats are Attenuation 59dB, Noise Margin 8, and DL 1151kbps.
Openreach came out last week: "Engineer has resolved the fault located at the D-side including aerial cables / lead-in / block terminal. There was a fault outside the end customer's curtilage caused by general wear and tear. The fault was fixed by clearing in join"
For 4 days it was fine, then back to this.
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