I had a similar problem some months ago. I was unable to reach my bank's website from our LAN. any connection would time out. I worked on it for months with the bank and posted about it here. Eventually the problem disappeared.
It's back now. I cannot access our bank site from inside our LAN. (except of one specific computer running 18.04 32 bit Ubuntu). Now I have discovered some additional websites I cannot reach, all of them are state government sites in different states. I can access all of them when using a cell network or from another location. I would likely never have discovered this if I hadn't need to check the status of various licenses. We have 4 Linux computers 3 are running 20.04 LTS), 5 Windows 10 computers and one Windows Server.
I can do an nslookup on the sites, I can ping some of them both by name and by ipaddress but a trace route may time out or not. I've contacted our ISP (ATT) and they haven't been able to offer any help.
The sites I know about are:
Code:
>nslookup login.hancockwhitney.com
Server: dsldevice6.attlocal.net
Address: 2600:1700:3e6::1
Non-authoritative answer:
Name: pv65z9.hancock.gslb.f5silverline.com
Address: 107.162.184.159
Aliases: login.hancockwhitney.com
Code:
>ping login.hancockwhitney.com
Pinging pv65z9.hancock.gslb.f5silverline.com [107.162.184.159] with 32 bytes of data:
Reply from 107.162.184.159: bytes=32 time=28ms TTL=244
Reply from 107.162.184.159: bytes=32 time=28ms TTL=244
Reply from 107.162.184.159: bytes=32 time=28ms TTL=244
Reply from 107.162.184.159: bytes=32 time=28ms TTL=244
Ping statistics for 107.162.184.159:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 28ms, Maximum = 28ms, Average = 28ms
Code:
>ping 107.162.184.159
Pinging 107.162.184.159 with 32 bytes of data:
Reply from 107.162.184.159: bytes=32 time=28ms TTL=244
Reply from 107.162.184.159: bytes=32 time=28ms TTL=244
Reply from 107.162.184.159: bytes=32 time=27ms TTL=244
Reply from 107.162.184.159: bytes=32 time=28ms TTL=244
Ping statistics for 107.162.184.159:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 27ms, Maximum = 28ms, Average = 27ms
Code:
>tracert login.hancockwhitney.com
Tracing route to pv65z9.hancock.gslb.f5silverline.com [107.162.184.159]
over a maximum of 30 hops:
1 <1 ms <1 ms <1 ms dsldevice.attlocal.net [192.168.1.254]
2 1 ms 1 ms <1 ms 107-143-24-1.lightspeed.nworla.sbcglobal.net [107.143.24.1]
3 1 ms 1 ms 1 ms 99.55.25.28
4 14 ms 14 ms 14 ms 12.123.239.206
5 16 ms 14 ms 14 ms 12.122.28.29
6 19 ms 14 ms 14 ms attga402igs.ip.att.net [12.122.117.121]
7 44 ms 14 ms 12 ms 192.205.36.158
8 13 ms 12 ms 13 ms ae-6.r23.atlnga05.us.bb.gin.ntt.net [129.250.5.59]
9 28 ms 28 ms 38 ms ae-4.r25.asbnva02.us.bb.gin.ntt.net [129.250.4.165]
10 29 ms 28 ms 31 ms ae-1.a04.asbnva02.us.bb.gin.ntt.net [129.250.2.125]
11 29 ms 28 ms 28 ms ae-1.f5-networks.asbnva02.us.bb.gin.ntt.net [128.241.219.154]
12 28 ms 27 ms 27 ms 107.162.79.1
13 28 ms 28 ms 28 ms 107.162.184.159
Trace complete.
Code:
>nslookup www.myfloridalicense.com
Server: dsldevice6.attlocal.net
Address: 2600:1700:3e6::1
Non-authoritative answer:
Name: www.myfloridalicense.com
Address: 199.250.17.14
Code:
>ping www.myfloridalicense.com
Pinging www.myfloridalicense.com [199.250.17.14] with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 199.250.17.14:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
Code:
>ping 199.250.17.14
Pinging 199.250.17.14 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 199.250.17.14:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
Code:
>tracert www.myfloridalicense.com
Tracing route to www.myfloridalicense.com [199.250.17.14]
over a maximum of 30 hops:
1 <1 ms 5 ms <1 ms dsldevice.attlocal.net [192.168.1.254]
2 2 ms 1 ms 3 ms 107-143-24-1.lightspeed.nworla.sbcglobal.net [107.143.24.1]
3 1 ms 1 ms 1 ms 99.55.25.28
4 17 ms 19 ms 58 ms 12.123.239.206
5 14 ms 14 ms 19 ms 12.122.28.29
6 24 ms 22 ms 21 ms attga402igs.ip.att.net [12.122.117.121]
7 15 ms 17 ms 15 ms 4.68.62.225
8 30 ms 38 ms 26 ms ae-0-11.bar2.Tampa1.Level3.net [4.69.137.110]
9 37 ms 31 ms 31 ms 4.34.132.222
10 * * * Request timed out.
11 * * * Request timed out.
12 * * * Request timed out.
13 * * * Request timed out.
14 * * * Request timed out.
15 * * * Request timed out.
16 * * * Request timed out.
17 * * * Request timed out.
18 * * * Request timed out.
19 * * * Request timed out.
20 * * * Request timed out.
21 * * * Request timed out.
22 * * * Request timed out.
23 * * * Request timed out.
24 * * * Request timed out.
25 * * * Request timed out.
26 * * * Request timed out.
27 * * * Request timed out.
28 * * * Request timed out.
29 * * * Request timed out.
30 * * * Request timed out.
Trace complete.
Any suggestions welcomed.
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