Cannot access CPanel or our website from some Windows 7 PC's

[deflint]

This morning I flushed the ARP Cache using “netsh interface ip delete arpcache”.
This fixed the problem temporarily.
Both sites were then available for a few minutes after which I am again unable to connect.
Flushing the ARP Cache a second time did not fix the problem.

Cannot ping either site.
Successfully tested connecting to both site using Proxify.com.

Server is Echo which is up.

It appears I have been firewalled? If so who can I get this situation resolved?

Thanks.

Tracert results:
tracert echo.gendns.com
Tracing route to echo.gendns.com [198.105.215.36] over a maximum of 30 hops:
1 1 ms 23 ms 17 ms 192.168.1.40
2 1 ms 1 ms 1 ms 65-100-30-94.dia.static.housingnm.org [65.100.30.94]
3 20 ms 24 ms 17 ms ch0.s5-1-0-14.albq-cust.albq.uswest.net [65.101.120.97]
4 21 ms 17 ms 20 ms phn-core-02.inet.qwest.net [205.171.12.65]
5 * * * Request timed out.
6 * * * Request timed out.
7 35 ms 35 ms 35 ms slc-edge-11.inet.qwest.net [67.14.20.173]
8 35 ms 35 ms 35 ms 207.109.238.138
9 45 ms 47 ms 50 ms as29854.xe-1-0-0.cr2.slc1.us.nlayer.net [69.22.153.86]
10 47 ms 52 ms 49 ms 206.130.126.26.west-datacenter.net [206.130.126.26]
11 * * * Request timed out.
12 * * * Request timed out.
13 * * * Request timed out.
14 * * * Request timed out.
15 * * * Request timed out.
16 * * * Request timed out.
17 * * * Request timed out.
18 * * * Request timed out.
19 * * * Request timed out.
20 * * * Request timed out.
21 * * * Request timed out.
22 * * * Request timed out.
23 * * * Request timed out.
24 * * * Request timed out.|
25 * * * Request timed out.
26 * * * Request timed out.
27 * * * Request timed out.
28 * * * Request timed out.
29 * * * Request timed out.
30 * * * Request timed out.
Trace complete.
tracert thebandflashback.com
Tracing route to thebandflashback.com [198.105.215.36] over a maximum of 30 hops:
1 1 ms 6 ms 15 ms 192.168.1.40
2 1 ms 1 ms <1 ms 65-100-30-94.dia.static.housingnm.org [65.100.30.94]
3 17 ms 17 ms 18 ms ch0.s5-1-0-14.albq-cust.albq.uswest.net [65.101.120.97]
4 261 ms 83 ms 132 ms phn-core-02.inet.qwest.net [205.171.12.65]
5 * * * Request timed out.
6 * * * Request timed out.
7 64 ms 48 ms 38 ms slc-edge-11.inet.qwest.net [67.14.20.173
8 36 ms 47 ms 54 ms 207.109.238.138
9 49 ms 44 ms 45 ms as29854.xe-1-0-0.cr2.slc1.us.nlayer.net [69.22.153.86]
10 58 ms 49 ms 49 ms 206.130.126.26.west-datacenter.net [206.130.126.26]
11 * * * Request timed out.
12 * * * Request timed out.
13 * * * Request timed out.
14 * * * Request timed out.
15 * * * Request timed out.
16 * * * Request timed out.
17 * * * Request timed out.
18 * * * Request timed out.
19 * * * Request timed out.
20 * * * Request timed out.
21 * * * Request timed out.
22 * * * Request timed out.
23 * * * Request timed out.
24 * * * Request timed out.
25 * * * Request timed out.
26 * * * Request timed out.
27 * * * Request timed out.
28 * * * Request timed out.
29 * * * Request timed out.
30 * * * Request timed out.
Trace complete.

[Alexander]

Looks like your IP was blocked by server's firewall. Please, open a ticket for tech support dep. regarding it.

[deflint]

Looks like your IP was blocked by server's firewall. Please, open a ticket for tech support dep. regarding it.

That's exactly what happened. Issue now resolved. Thanks