Connect the oracle database in the past two days has been ORA - 12545 error, has been no problem before, not even PB and PL/SQL,
First of all, I was through LAN remote connections, all oracle of this machine is not installed, so want to modify the tnsnames. Ora is no way out;
Then my friend on the computer can connect and even not on my computer, then should not wifi or server side of the problem;
And don't know if you have used fly autumn (a very similar to QQ, but only in local area network (LAN) using the chat software), I can't see my friends online, they can't see me is no problem (ago), all I think may be I have a problem with my computer on the network configuration,
Is finally, I had some time to connect, the result was OK again, but even on once in a while and then disconnect, appear such problem again, now don't know how to solve ah, very affect my work, please everyone a great god help solve, thank you!

CodePudding user response:

This is not the problem of oracle,
Why estimate or out on your computer,

CodePudding user response:

Error ORA - 12545: Connect failed because the target host of the object does not exist
And appear the error, the computer can be normal access to the Internet, may be the local area network (LAN)

CodePudding user response:

Suspect network sucks the simplest method is the long ping the server

CodePudding user response:

Pass by
http://blog.csdn.net/palmer_xu/article/details/7564212

CodePudding user response:

http://blog.csdn.net/haibusuanyun/article/details/17738631