Ask Your Question

sugar76's profile - activity

2022-09-24 12:50:10 +0000 received badge  Famous Question (source)
2022-09-24 12:50:10 +0000 received badge  Notable Question (source)
2022-09-24 12:50:10 +0000 received badge  Popular Question (source)
2022-09-24 12:40:52 +0000 marked best answer DNS query fails - did the query reach the router?

Users did report that visiting a web site via iPad/Safari fails. I found out that the reason a failing DNS query. This issue only applies to some websites (for others it works). Visiting one of the "failing" sites at the same time using an iPhone works.

One of the failing sites is achgut.com. I recorded a network trace on the router. In this trace I see a lot of succeeding DNS queries from 192.168.178.109 (an iPhone). I see some other queries from 2003:ec:df10:1600:f419:5a6c:e4bc:f28e but I am not sure which device this is. The 192.168.178.109 is a MacBook. The router's ip address is 192.168.178.1.

I would like to know if the DNS query of failing iPad did actually reach the router. Unfortunately I do not know the ip address of the iPad. The iPad's hostname is "Abids-iPad".

My questions are: Is there a way to identify the device model in the trace? Does the trace indicate any DNS errors?

Trace: https://drive.google.com/file/d/1vH0U...

2022-09-24 12:40:31 +0000 commented answer DNS query fails - did the query reach the router?

Thanks for this excellent explanation. Indeed I noticed there's another device with fixed ip address 192.168.178.100. So

2022-09-24 12:39:36 +0000 commented answer DNS query fails - did the query reach the router?

Thanks for this excellent explanation. Indeed I noticed there's another device with fixed ip address 192.168.178.100. So

2022-09-22 11:38:14 +0000 received badge  Notable Question (source)
2022-09-22 11:38:14 +0000 received badge  Popular Question (source)
2022-09-21 08:47:48 +0000 commented answer Websites cannot be loaded - Wifi problem?

Thanks. Could you give me a hint how to identify SACK packets? I searched for "sack" in the trace but I'm not quite sure

2022-09-21 08:33:38 +0000 commented answer DNS query fails - did the query reach the router?

Thanks this helped me a lot to identify the devices in the trace :-) (unfortunately I cannot upvote as I haven't enough

2022-09-20 11:09:35 +0000 edited question DNS query fails - did the query reach the router?

DNS Query fails - did the query reach the router? Users did report that visiting a web site via iPad/Safari fails. I fou

2022-09-20 11:08:47 +0000 received badge  Associate Editor (source)
2022-09-20 11:08:47 +0000 edited question DNS query fails - did the query reach the router?

DNS Query fails - did the query reach the router? Users did report that visiting a web site via iPad/Safari fails. I fou

2022-09-20 11:08:09 +0000 edited question DNS query fails - did the query reach the router?

DNS Query fails - did the query reach the router? Users did report that visiting a web site via iPad/Safari fails. I fou

2022-09-20 11:07:03 +0000 edited question DNS query fails - did the query reach the router?

DNS Query fails - did the query reach the router? Users did report that visiting a web site via iPad/Safari fails. I fou

2022-09-20 11:06:41 +0000 asked a question DNS query fails - did the query reach the router?

DNS Query fails - did the query reach the router? Users did report that visiting a web site via iPad/Safari fails. I fou

2022-09-20 11:06:39 +0000 asked a question DNS Query fails - did the query reach the router?

DNS Query fails - did the query reach the router? Users did report that visiting a web site via iPad/Safari fails. I fou

2022-09-19 12:02:55 +0000 asked a question Websites cannot be loaded - Wifi problem?

Websites cannot be loaded - Wifi problem? Hallo, users did encounter some strange problem where some websites cannot be

2022-04-03 07:22:03 +0000 edited question Timeout occurring quite regularly

Timeout occurring quite regularly I have a small network with a local database server (PostgreSQL) and 6 clients. It's a

2022-04-03 07:21:36 +0000 edited question Timeout occurring quite regularly

Timeout occurring quite regularly I have a small network with a local database server (PostgreSQL) and 6 clients. It's a

2022-04-03 07:21:12 +0000 edited question Timeout occurring quite regularly

Timeout occurring quite regularly I have a small network with a local database server (PostgreSQL) and 6 clients. It's a

2022-04-03 07:20:53 +0000 commented answer Timeout occurring quite regularly

I attached traces from both ends now.

2022-04-03 07:20:29 +0000 commented question Timeout occurring quite regularly

I anonymized traces using TraceWrangler and updated the issue.

2022-04-03 07:19:34 +0000 edited question Timeout occurring quite regularly

Timeout occurring quite regularly I have a small network with a local database server (PostgreSQL) and 6 clients. It's a

2022-03-29 19:51:13 +0000 edited question Timeout occurring quite regularly

Timeout occoring quite regularly I have a small network with a local database server (PostgreSQL) and 6 clients. It's al

2022-03-29 14:28:59 +0000 asked a question Timeout occurring quite regularly

Timeout occoring quite regularly I have a small network with a local database server (PostgreSQL) and 6 clients. It's al

2021-06-25 08:57:02 +0000 received badge  Notable Question (source)
2021-06-25 08:57:02 +0000 received badge  Popular Question (source)
2021-06-25 08:14:38 +0000 received badge  Famous Question (source)
2021-06-25 08:14:38 +0000 received badge  Notable Question (source)
2019-12-25 22:29:36 +0000 received badge  Popular Question (source)
2019-11-27 08:04:50 +0000 commented answer SIP register timeout

You are completely right, the capture on the PBX side is incomplete. My fault. I will wait until the problem rises again

2019-11-26 14:41:04 +0000 edited question SIP register timeout

SIP register timeout Hi all, I have a fax server running on a Windows Server 2019 machine. The fax server communicates

2019-11-26 14:38:36 +0000 commented answer SIP register timeout

Maybe my first comment was a bit unclear, sorry for that :-) I see a successful registration at 13:46:45 (Packet no. 88-

2019-11-24 18:03:08 +0000 received badge  Commentator
2019-11-24 18:03:08 +0000 commented answer SIP register timeout

The TLS connections don't come from the fax server. On the 192.168.73.150 trace, packet no. 34 is a ping reply so I am n

2019-11-23 13:28:38 +0000 edited question SIP register timeout

SIP register timeout Hi all, I have a fax server running on a Windows Server 2019 machine. The fax server communicates

2019-11-23 13:28:13 +0000 asked a question SIP register timeout

SIP register timeout Hi all, I have a fax server running on a Windows Server 2019 machine. The fax server communicates

2019-09-02 08:44:46 +0000 commented answer Problems sending Fax via IP phone

I recorded a fax sending process on the gateway (see Capture Router/Gateway in the main question). There is almost no pa

2019-09-02 08:42:41 +0000 commented answer Problems sending Fax via IP phone

I recorded a capture on the gateway (see Capture Router/Gateway in the main question). There is almost no packet loss bu

2019-09-02 08:14:02 +0000 commented answer Problems sending Fax via IP phone

I recorded a capture on the gateway (see Capture Router/Gateway in the main question). There is almost no packet loss bu

2019-09-02 08:10:47 +0000 edited question Problems sending Fax via IP phone

Problems sending Fax via IP phone Hello, we are using a fax software which sends and receives faxes by encapsulating th

2019-09-02 08:06:11 +0000 edited question Problems sending Fax via IP phone

Problems sending Fax via IP phone Hello, we are using a fax software which sends and receives faxes by encapsulating th

2019-09-02 07:47:57 +0000 edited question Problems sending Fax via IP phone

Problems sending Fax via IP phone Hello, we are using a fax software which sends and receives faxes by encapsulating th

2019-08-26 07:42:38 +0000 commented answer Problems sending Fax via IP phone

@SYN-bit: please see my edits regarding the RTP stream.

2019-08-26 07:41:49 +0000 edited question Problems sending Fax via IP phone

Problems sending Fax via IP phone Hello, we are using a fax software which sends and receives faxes by encapsulating th

2019-08-26 07:41:10 +0000 commented answer Problems sending Fax via IP phone

I'm not quite sure how to figure out the RTP statistics. In RTP stream View, I see two entries between 192.168.73.150 an

2019-08-26 07:35:27 +0000 commented answer Problems sending Fax via IP phone

Yes, the subnet is 192.168.73.x for both. I checked the subnetmask, it's set to 255.255.255.0 so it's OK.

2019-08-26 07:25:29 +0000 commented question Problems sending Fax via IP phone

@Spooky Please see my edits.

2019-08-26 07:25:10 +0000 edited question Problems sending Fax via IP phone

Problems sending Fax via IP phone Hello, we are using a fax software which sends and receives faxes by encapsulating th