“Cannot Allocate Memory” error when trying to ssh or ping or curl due to unrelated vpn?

Question

I'm trying to reach my server on campus from home. It is usually very well behaved and these connections are fine. When I attempt to ssh or ping I get the following:

mwoods 13 18:38:12 Trunk$ ssh me@foo.edu
ssh: connect to host foo.edu port 22: Cannot allocate memory
mwoods 14 18:40:44 Trunk$ ping foo.edu
PING foo.edu (169.237.43.27): 56 data bytes
ping: sendto: Cannot allocate memory
ping: sendto: Cannot allocate memory
Request timeout for icmp_seq 0
ping: sendto: Cannot allocate memory
Request timeout for icmp_seq 1
ping: sendto: Cannot allocate memory
Request timeout for icmp_seq 2
^C
--- foo.edu ping statistics ---
4 packets transmitted, 0 packets received, 100.0% packet loss

Similar story with curl. Trying to view the webpage hosted by this server creates a very fast Error 13 (net::ERR_OUT_OF_MEMORY): Unknown error. message in Chrome. It appears any connection reports insufficient memory.

I can successfully ssh to this machine if I ssh into any other machine in the building, or from another computer in my house (no issues once connected). So it is clearly something related to my laptop. I have been VPNing with Juniper "Network Connect" to completely separate network recently and this problem has only appeared since I've begun this.

So my question is, what about the VPN is causing this and how do I fix it (besides a restart of my laptop which solves the problem)?

Answer 1

Quote from this apple forum post

Try following:

Methind 1

1. ensure you have admin access
2. go to system preferences
3. click on network
4. select Wi-Fi
5. select advanced button (at the bootom right of the screen, before the "?" sign)
6. select tcp/ip tab
7. disable and enable tcp/ip

Method 2

sudo route delete -host 128.0.0.0