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CharlieF
Aspiring Expert
974 Views
Message 21 of 53

Re: Routing problems at BT


@FloFosterJenkins wrote:

...

But it gave me an IP address in the 86.148.xxx.xx range and access to the newsgoups is re-established Smiley Happy

... 

Thanks for the advice CharlieF and imjolly


You are welcome.

 

Count yourself lucky thought that it is only the news groups that get blocked when this happens.  I (and my neighbour) lose the entire Internet when out IP becomes 86.160.x.x

 

The BT call centre have insisted on sending an engineer to my property on Tuesday morning, despite acknowledging the problem is with the BT Retail Servers (and not the home equipment or exchange).  I've accepted, as the only way to show them the issue first hand.

 

Allow me to tracert to google with my 86.160 address  ....

 

C:\>tracert -d 209.85.229.147

 

Tracing route to 209.85.229.147 over a maximum of 30 hops

 

  1     9 ms    11 ms     9 ms  192.168.1.254
  2    11 ms    11 ms    26 ms  217.47.154.142
  3    13 ms    15 ms    14 ms  217.47.154.125
  4     *        *        *     Request timed out.
  5     *        *        *     Request timed out.
  6     *        *        *     Request timed out.
  7     *        *        *     Request timed out.
  8     *        *        *     Request timed out.
  9     *        *        *     Request timed out.

 

 

And so we arrive at the centre of the shrubbery maze.

 

Needless to say, this all works fine when I don't have an 86.160 address.  I get ping responses from all the routers, all the way.

 

If anyone has any suggestions for getting this moved on, I'd welcome them.  I sent a message to the mods on Tuesday, but with Easter (and this good weather), I'm not expecting a reply until after the engineer has called.

 

CharlieF 

 

 

 

 

 

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932 Views
Message 22 of 53

Re: Routing problems at BT

More problems yesterday (Easter day). Browsing impossibly slow all day. Speedtest failed to work after interminable wait and then said there was a fault.

IP address 86.148.xxx.xx

 

Just gave up and hit Disconnect in the Hub interface and immediately Connect.

Acquired IP address 86.144.xxx.xxx and back to normal.

 

weirdwizard
Expert
925 Views
Message 23 of 53

Re: Routing problems at BT

I have had problems since Wednesday, have tried everything that India told me to do .  Finally after four days was told it was the exchange . They would sort it out, it was fine in mornings and slow in afternoosn now I am having the engineeer out.  Yet now can connect, I suspect later very slow speeds.  So has anyone any ideas?

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Distinguished Guru
913 Views
Message 24 of 53

Re: Routing problems at BT

 


@weirdwizard wrote:

I have had problems since Wednesday, have tried everything that India told me to do .  Finally after four days was told it was the exchange . They would sort it out, it was fine in mornings and slow in afternoosn now I am having the engineeer out.  Yet now can connect, I suspect later very slow speeds.  So has anyone any ideas?


 

I suspect it could be some form of DNS issue. I've been seeing routing issues for a few days, and have had various IP addresses (including 109.145.xxx.xxx currently - preventing newsgroup access. This has still not been fixed).

 

I altered the DNS to use Google's (see my shortcuts option 0d/i) and the problem disappears.

900 Views
Message 25 of 53

Re: Routing problems at BT

This is intolerable. Now I'm on a 109.158.xx.xxx address and speeds are very poor. Hub didn't reboot I didn't even Disconnect and Connect using the Hub Manager. And it says I've been connected for 4 days, 14:51:17.

How can I be allocated a new IP address? Do they just change at random?

 

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CharlieF
Aspiring Expert
893 Views
Message 26 of 53

Re: Routing problems at BT


@FloFosterJenkins wrote:

This is intolerable. Now I'm on a 109.158.xx.xxx address and speeds are very poor. Hub didn't reboot I didn't even Disconnect and Connect using the Hub Manager. And it says I've been connected for 4 days, 14:51:17.


Can you do a tracert -d 209.85.229.147 command from your PC, whilst you are having issues, and post back the results?

 

This will do a trace of ping packets to a goggle server.  The -d option is to disable reverse DNS lookup, to remove DNS from the picture.

 

If there is a routing issue, you will probably see the packets only getting part way (as in my case above).  However, routing issues can also show up as delays, as alternative routes are used.

 


@FloFosterJenkins wrote:

How can I be allocated a new IP address? Do they just change at random?

 


The hub is allocated an IP address with a limited time lease.  When this expires, the hub requests a new one from the BT pool.  I think this lasts 3-6 days, matching your 4 day experience.

 

Although it is fairly random, I expect that your geographic location and exchange will have some bearing on the set you get allocated from. 

 

 

It is challenging to unpick all of these symptoms.

 

109 not getting to the news groups is due to the news servers blocking non-BT IP addresses (not a routing issue as such).  Poor speed could be a number of things - as this forum aptly demonstrates.  tracert is the only real way to show a routing issue on the BT network IMHO.

 

 

ChalrleF

 

 

891 Views
Message 27 of 53

Re: Routing problems at BT

Disconnect/Reconnect and now 86.145.xx.xxx

But poor d/l speeds.

 

...edit update same IP 86.145.xx.xxx and slightly better speed but not normal

Upload is pretty constant at just under 1Mbps, but d/l is way off normal.

 

Anyway here's that tracert

 1    48 ms   100 ms    99 ms  192.168.1.254
 2     7 ms     8 ms     8 ms  217.32.145.232
 3    11 ms    11 ms    11 ms  217.32.146.30
 4    12 ms    12 ms    12 ms  213.120.181.86
 5    13 ms    12 ms    12 ms  213.120.179.50
 6    13 ms    12 ms    12 ms  213.120.179.182
 7    12 ms    12 ms    12 ms  109.159.251.217
 8    23 ms    19 ms    19 ms  109.159.251.129
 9    20 ms    39 ms    43 ms  62.172.102.25
10    20 ms    21 ms    20 ms  195.99.126.26
11    18 ms    21 ms    44 ms  209.85.252.76
12    25 ms    25 ms    25 ms  72.14.232.134
13    24 ms    26 ms    24 ms  216.239.49.45
14    37 ms    27 ms    27 ms  209.85.243.73
15    25 ms    24 ms    25 ms  209.85.229.147

Trace complete.

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CharlieF
Aspiring Expert
885 Views
Message 28 of 53

Re: Routing problems at BT


@FloFosterJenkins wrote:

Disconnect/Reconnect and now 86.145.xx.xxx

But poor d/l speeds.

Anyway here's that tracert


Umm, all looks fine.  Ping/tracert isn't great at telling you when there is a problem, but it is ok at telling you there isn't a problem, if you know what I mean.

 

I'm afraid poor download is back to the basics of hub statistics and line noise.

 

CharlieF

CharlieF
Aspiring Expert
882 Views
Message 29 of 53

Re: Routing problems at BT

Actually, that said, 100ms isn't great to get a reply from your local Hub. Are you wireed or wireless?
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Distinguished Guru
879 Views
Message 30 of 53

Re: Routing problems at BT

 


@FloFosterJenkins wrote:

More problems yesterday (Easter day). Browsing impossibly slow all day. Speedtest failed to work after interminable wait and then said there was a fault.

IP address 86.148.xxx.xx

 

Just gave up and hit Disconnect in the Hub interface and immediately Connect.

Acquired IP address 86.144.xxx.xxx and back to normal.

 


 

FYI, Speedtester appears fine for moi and my settings are as follows (though iirc I've never had a 217. IP address before and previous addresses have had me all over the country!)

 

TCP/IP settings
Broadband network IP address:217.42.***.*** 
Default gateway:217.47.***.** 
Primary DNS:194.72.*.** 
Secondary DNS:62.6.**.***

 

 

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