User-Agent: Mozilla/5.0 (X11; Fedora; Linux i686; rv:45.0) Gecko/20100101 Firefox/45.0 Build Identifier: Can't ping google.com, can't Firefox into websites. If I do dnf update from root. after about 8 minutes update starts and seems to run correctly, other than that it won't connect to anything, just hangs. Reproducible: Always Steps to Reproduce: 1.try connecting to Internet with Firefox and select a site, 2.Also tried Konqueror 3.tried ping google.com, no response Actual Results: Firefox sits there and eventually drops the request to connect. Expected Results: Expect to connect, I brought a laptop (also running Linux) over to the desktop that won't work and connected to the cable the desktop uses, connected fine. The other Ethernet port is connected to a local server with fixed ip address and works fine.
Red Hat service found a solution for a VERY similar problem I have had with RHEL6.7. The condition seems to be caused by a fixed ip address on the first Ethernet that has a the fixed IP address for the Gateway. It seems the 2nd Ethernet can't do a dns connection for the 2nd Ethernet (if present). You go to /etc/sysconfig/network/network-scripts and comment out the Gateway line in the ifcfg-enp2s0(the name of the 2nd Ethernet in my system). Then the system works. On the RHEL6.7 system and my Fedora System, I also set the IPv6 to IGNORED. Now the Network connects, runs and all is wonderful. This bug was also in a report I submitted for Fedora 20, the answer wasn't found and I downgraded to Fedora 20 to get my desktop back, which peeved the person helping, sorry but I had to get work done. This solution seems like it would apply to a number of dns bugs reported! John
To clarify my comment, the enp2s0 ifconfig statement that had the Gateway command I commented out is for the 1st Ethernet of the 2 Ethernet system. Having the entry Gateway entry in the first Ethernet seems to stop Network manager from succeeding in making a dns connection for the 2nd Ethernet. John
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