问tencent linux 3.2无法yum？

yum makecache, yum makecache timeout，但wget 网站实际上连接没问题

TencentOS-3.1 - TencentOS 0.0 B/s | 0 B 02:00

Errors during downloading metadata for repository 'TencentOS':

- Curl error (28): Timeout was reached for http://mirrors.tencent.com/tlinux/3.1/TencentOS/x86_64/repodata/repomd.xml [Connection timed out after 30000 milliseconds]

- Curl error (28): Timeout was reached for http://mirrors.tencent.com/tlinux/3.1/TencentOS/x86_64/repodata/repomd.xml [Connection timed out after 30001 milliseconds]

Error: Failed to download metadata for repo 'TencentOS': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried

yum install gcc

TencentOS-3.1 - TencentOS 0.0 B/s | 0 B 02:00

Errors during downloading metadata for repository 'TencentOS':

- Curl error (28): Timeout was reached for http://mirrors.tencent.com/tlinux/3.1/TencentOS/x86_64/repodata/repomd.xml [Connection timed out after 30001 milliseconds]

- Curl error (28): Timeout was reached for http://mirrors.tencent.com/tlinux/3.1/TencentOS/x86_64/repodata/repomd.xml [Connection timed out after 30000 milliseconds]

Error: Failed to download metadata for repo 'TencentOS': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried

[root@TENCENT64 yum.repos.d]# yum update -y

TencentOS-3.1 - TencentOS 0.0 B/s | 0 B 02:00

Errors during downloading metadata for repository 'TencentOS':

- Curl error (28): Timeout was reached for http://mirrors.tencent.com/tlinux/3.1/TencentOS/x86_64/repodata/repomd.xml [Connection timed out after 30000 milliseconds]

Error: Failed to download metadata for repo 'TencentOS': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried