When the signal is not good enough for HSPA, my modem (Huawei B932) falls back to GPRS (56k) and then tries to bump this up to EDGE (384k).
In these circumstances (when I visit the Upper Yarra Valley in Victoria, for example), the GPRS connection seems to work ... until the modem gets the idea to try for EDGE.
The modem tells me it has a strong signal and it has a connection with IP addresses allocated, but a ping plot shows that in fact there is no connection. (I have my modem's IP but nothing beyond.)
The modem can be set to WCDMA preferred, GSM preferred, WCDMA only or GSM only. Unfortunately, setting it to GSM only still allows it to attempt EDGE connections.
I have line of sight to the Woori Yallock tower, but have been told that this is so congested I am seldom able to get a connection through it. (When I do, it is an acceptable HSPA connection.)
Is this problem likely to be:
- 1. A modem issue?
2. Because EDGE connections aren't supported?
3. Due to contention for data connections in the local area?