suddenly have connection problem with my repositories which was all fine before

[littlemurloc]

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i suddenly had connection failure to my repositories today, which was all fine before. i run the https://github-debug.com/ test and here are the results below:
1st:
C:>git clone https://github.com/github/debug-repo debug-repo-http
Cloning into 'debug-repo-http'...
fatal: unable to access 'https://github.com/github/debug-repo/': Failed to connect to github.com port 443 after 21057 ms: Could not connect to server

2nd:
C:>git clone [email protected]:github/debug-repo debug-repo-ssh
Cloning into 'debug-repo-ssh'...
ssh: connect to host github.com port 22: Connection timed out
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

3rd:
C:>ping -n 10 github.com

正在 Ping github.com [20.205.243.166] 具有 32 字节的数据:
请求超时。<----which means time out
请求超时。
请求超时。
请求超时。
请求超时。
请求超时。
请求超时。
请求超时。
请求超时。
请求超时。

20.205.243.166 的 Ping 统计信息:
数据包: 已发送 = 10，已接收 = 0，丢失 = 10 (100% 丢失)，<---- means 100% lost

4th:
C:>tracert github.com

通过最多 30 个跃点跟踪
到 github.com [20.205.243.166] 的路由:

1 1 ms 1 ms 1 ms zte.home [192.168.5.1]
2 2 ms 3 ms 2 ms 192.168.1.1 [192.168.1.1]
3 8 ms 9 ms 9 ms 100.95.160.1
4 * * * 请求超时。<-----which means time out
5 * * * 请求超时。
6 * * * 请求超时。
7 * * * 请求超时。
8 * * * 请求超时。
9 * * * 请求超时。
10 * * * 请求超时。
11 * * * 请求超时。
12 * * * 请求超时。
13 * * * 请求超时。
14 * * * 请求超时。
15 * * * 请求超时。
16 * * * 请求超时。
17 * * * 请求超时。
18 * * * 请求超时。
19 * * * 请求超时。
20 * * * 请求超时。
21 * * * 请求超时。
22 * * * 请求超时。
23 * * * 请求超时。
24 * * * 请求超时。
25 * * * 请求超时。
26 * * * 请求超时。
27 * * * 请求超时。
28 * * * 请求超时。
29 * * * 请求超时。
30 * * * 请求超时。

跟踪完成。

5th(run test result):

2507998 bytes downloaded from github.com at 13.25 Mbps
2507998 bytes downloaded from cloud.githubusercontent.com at 6.06 Mbps
2507998 bytes downloaded from avatars.githubusercontent.com at 30.66 Mbps
2507998 bytes downloaded from github.githubassets.com at 19.83 Mbps
2507998 bytes downloaded from australiaeast.github-debug.com at 13.11 Mbps
2507998 bytes downloaded from brazilsouth.github-debug.com at 5.25 Mbps
2507998 bytes downloaded from centralindia.github-debug.com at 12.58 Mbps
2507998 bytes downloaded from fra.github-debug.com at 6.52 Mbps
2507998 bytes downloaded from iad.github-debug.com at 1.34 Mbps
2507998 bytes downloaded from israelcentral.github-debug.com at 6.54 Mbps
2507998 bytes downloaded from japaneast.github-debug.com at 5.86 Mbps
2507998 bytes downloaded from koreacentral.github-debug.com at 16.67 Mbps
2507998 bytes downloaded from northeurope.github-debug.com at 5.90 Mbps
Error downloading from sea.github-debug.com
2507998 bytes downloaded from southafricanorth.github-debug.com at 5.11 Mbps
2507998 bytes downloaded from southeastasia.github-debug.com at 13.65 Mbps
2507998 bytes downloaded from swedencentral.github-debug.com at 7.99 Mbps
2507998 bytes downloaded from uaenorth.github-debug.com at 8.38 Mbps
2507998 bytes downloaded from uksouth.github-debug.com at 8.05 Mbps
2507998 bytes downloaded from github-cloud.s3.amazonaws.com at 1.30 Mbps

103.219.195.147

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36

29788a8d2749ec40781431f3f32d8bef

E8C7:85302:008F:9E1B:68B06540

traceroute to 103.219.195.147 (103.219.195.147), 30 hops max, 60 byte packets
1 *
2 *
3 *
4 *
5 *
6 *
7 *
8 *
9 *
10 *
11 *
12 *
13 *
14 *
15 *
16 *
17 *
18 *
19 *
20 *
21 *
22 *
23 *
24 *
25 *
26 *
27 *
28 *
29 *
30 *

PING 103.219.195.147 (103.219.195.147) 56(84) bytes of data.

--- 103.219.195.147 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2025ms

Start: 2025-08-28T07:19:03-0700
HOST: dd39278837d3d00577ad50a5aa19e043 Loss% Snt Last Avg Best Wrst StDev

Host 147.195.219.103.in-addr.arpa. not found: 3(NXDOMAIN)

PLEASE SOME ONE HELP ME, WHAT GOING ON WITH MY ISSUE AND HOW TO FIX IT ???

[samrojk]

This looks like a network-related issue rather than a problem with your repositories. Since both HTTPS (port 443) and SSH (port 22) are failing, it could be due to a firewall, proxy, VPN, or ISP blocking GitHub connections. First, try running ping github.com and nslookup github.com to confirm DNS resolution. If that works, test connectivity with curl https://github.com and ssh -T [email protected]. If those still fail, check whether your company network, antivirus, or firewall is blocking ports. You could also try switching networks (e.g., mobile hotspot) to confirm if it’s local.

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